Merge mozilla-central to autoland

accessible/base/ARIAMap.cpp

@@ -982,7 +982,7 @@ static const nsRoleMapEntry sWAIRoleMaps[] =
     &nsGkAtoms::separator_,
     roles::SEPARATOR,
     kUseMapRole,
-    eNoValue,
+    eHasValueMinMaxIfFocusable,
     eNoAction,
     eNoLiveAttr,
     kGenericAccType,

accessible/base/ARIAMap.h

@@ -34,7 +34,15 @@ enum EValueRule
    * Value interface is implemented, supports value, min and max from
    * aria-valuenow, aria-valuemin and aria-valuemax.
    */
-  eHasValueMinMax
+  eHasValueMinMax,
+
+  /**
+   * Value interface is implemented, but only if the element is focusable.
+   * For instance, in ARIA 1.1 the ability for authors to create adjustable
+   * splitters was provided by supporting the value interface on separators
+   * that are focusable. Non-focusable separators expose no value information.
+   */
+  eHasValueMinMaxIfFocusable
 };
 
 

accessible/generic/Accessible-inl.h

@@ -95,7 +95,13 @@ Accessible::HasNumericValue() const
     return true;
 
   const nsRoleMapEntry* roleMapEntry = ARIARoleMap();
-  return roleMapEntry && roleMapEntry->valueRule != eNoValue;
+  if (!roleMapEntry || roleMapEntry->valueRule == eNoValue)
+    return false;
+
+  if (roleMapEntry->valueRule == eHasValueMinMaxIfFocusable)
+    return InteractiveState() & states::FOCUSABLE;
+
+  return true;
 }
 
 inline void

accessible/generic/DocAccessible.cpp

@@ -2056,8 +2056,6 @@ DocAccessible::RelocateARIAOwnedIfNeeded(nsIContent* aElement)
 void
 DocAccessible::DoARIAOwnsRelocation(Accessible* aOwner)
 {
-  nsTArray<RefPtr<Accessible> >* children = mARIAOwnsHash.LookupOrAdd(aOwner);
-
   MOZ_ASSERT(aOwner, "aOwner must be a valid pointer");
   MOZ_ASSERT(aOwner->Elm(), "aOwner->Elm() must be a valid pointer");
 
@@ -2065,10 +2063,13 @@ DocAccessible::DoARIAOwnsRelocation(Accessible* aOwner)
   logging::TreeInfo("aria owns relocation", logging::eVerbose, aOwner);
 #endif
 
+  nsTArray<RefPtr<Accessible> >* owned = mARIAOwnsHash.LookupOrAdd(aOwner);
+
   IDRefsIterator iter(this, aOwner->Elm(), nsGkAtoms::aria_owns);
-  uint32_t arrayIdx = 0, insertIdx = aOwner->ChildCount() - children->Length();
+  uint32_t idx = 0;
   while (nsIContent* childEl = iter.NextElem()) {
     Accessible* child = GetAccessible(childEl);
+    auto insertIdx = aOwner->ChildCount() - owned->Length() + idx;
 
     // Make an attempt to create an accessible if it wasn't created yet.
     if (!child) {
@@ -2081,15 +2082,13 @@ DocAccessible::DoARIAOwnsRelocation(Accessible* aOwner)
           imut.Done();
 
           child->SetRelocated(true);
-          children->InsertElementAt(arrayIdx, child);
+          owned->InsertElementAt(idx, child);
+          idx++;
 
           // Create subtree before adjusting the insertion index, since subtree
           // creation may alter children in the container.
           CreateSubtree(child);
           FireEventsOnInsertion(aOwner);
-
-          insertIdx = child->IndexInParent() + 1;
-          arrayIdx++;
         }
       }
       continue;
@@ -2103,15 +2102,14 @@ DocAccessible::DoARIAOwnsRelocation(Accessible* aOwner)
     // Same child on same position, no change.
     if (child->Parent() == aOwner &&
         child->IndexInParent() == static_cast<int32_t>(insertIdx)) {
-      MOZ_ASSERT(child == children->ElementAt(arrayIdx), "Not in sync!");
-      insertIdx++; arrayIdx++;
+      MOZ_ASSERT(owned->ElementAt(idx) == child, "Not in sync!");
+      idx++;
       continue;
     }
 
-    MOZ_ASSERT(children->SafeElementAt(arrayIdx) != child, "Already in place!");
+    MOZ_ASSERT(owned->SafeElementAt(idx) != child, "Already in place!");
 
-    nsTArray<RefPtr<Accessible> >::index_type idx = children->IndexOf(child);
-    if (idx < arrayIdx) {
+    if (owned->IndexOf(child) < idx) {
       continue; // ignore second entry of same ID
     }
 
@@ -2129,15 +2127,14 @@ DocAccessible::DoARIAOwnsRelocation(Accessible* aOwner)
 
     if (MoveChild(child, aOwner, insertIdx)) {
       child->SetRelocated(true);
-      children->InsertElementAt(arrayIdx, child);
-      arrayIdx++;
-      insertIdx = child->IndexInParent() + 1;
+      owned->InsertElementAt(idx, child);
+      idx++;
     }
   }
 
   // Put back children that are not seized anymore.
-  PutChildrenBack(children, arrayIdx);
-  if (children->Length() == 0) {
+  PutChildrenBack(owned, idx);
+  if (owned->Length() == 0) {
     mARIAOwnsHash.Remove(aOwner);
   }
 }
@@ -2146,6 +2143,8 @@ void
 DocAccessible::PutChildrenBack(nsTArray<RefPtr<Accessible> >* aChildren,
                                uint32_t aStartIdx)
 {
+  MOZ_ASSERT(aStartIdx <= aChildren->Length(), "Wrong removal index");
+
   nsTArray<RefPtr<Accessible> > containers;
   for (auto idx = aStartIdx; idx < aChildren->Length(); idx++) {
     Accessible* child = aChildren->ElementAt(idx);
@@ -2196,6 +2195,8 @@ DocAccessible::MoveChild(Accessible* aChild, Accessible* aNewParent,
 {
   MOZ_ASSERT(aChild, "No child");
   MOZ_ASSERT(aChild->Parent(), "No parent");
+  MOZ_ASSERT(aIdxInParent <= static_cast<int32_t>(aNewParent->ChildCount()),
+             "Wrong insertion point for a moving child");
 
   Accessible* curParent = aChild->Parent();
 

accessible/ipc/win/IAccessible32.manifest

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <assemblyIdentity type="win32" name="Mozilla.Firefox.xul" version="1.0.0.0" />
+  <file name="xul.dll" />
+  <comInterfaceExternalProxyStub
+      iid="{618736E0-3C3D-11CF-810C-00AA00389B71}"
+      proxyStubClsid32="{00020424-0000-0000-C000-000000000046}"
+      name="IAccessible"
+      tlbid="{1EA4DBF0-3C3B-11CF-810C-00AA00389B71}"
+  />
+</assembly>

accessible/ipc/win/IAccessible64.manifest

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <assemblyIdentity type="win32" name="Mozilla.Firefox.xul" version="1.0.0.0" />
+  <file name="xul.dll" />
+  <comInterfaceExternalProxyStub
+      iid="{618736E0-3C3D-11CF-810C-00AA00389B71}"
+      proxyStubClsid32="{03022430-ABC4-11D0-BDE2-00AA001A1953}"
+      name="IAccessible"
+  />
+</assembly>

accessible/ipc/win/PlatformChild.cpp

@@ -7,6 +7,7 @@
 #include "mozilla/a11y/PlatformChild.h"
 #include "mozilla/mscom/EnsureMTA.h"
 #include "mozilla/mscom/InterceptorLog.h"
+#include "mozilla/WindowsVersion.h"
 
 #include "Accessible2.h"
 #include "Accessible2_2.h"
@@ -48,6 +49,27 @@ PlatformChild::PlatformChild()
   , mMiscTypelib(mozilla::mscom::RegisterTypelib(L"Accessible.tlb"))
   , mSdnTypelib(mozilla::mscom::RegisterTypelib(L"AccessibleMarshal.dll"))
 {
+  // The manifest for 32-bit Windows is embedded with resource ID 32.
+  // The manifest for 64-bit Windows is embedded with resource ID 64.
+  // Beginning with Windows 10 Creators Update, 32-bit builds use the 64-bit
+  // manifest.
+  WORD actCtxResourceId;
+#if defined(HAVE_64BIT_BUILD)
+  actCtxResourceId = 64;
+#else
+  if (IsWin10CreatorsUpdateOrLater()) {
+    actCtxResourceId = 64;
+  } else {
+    actCtxResourceId = 32;
+  }
+#endif
+
+  mozilla::mscom::MTADeletePtr<mozilla::mscom::ActivationContextRegion> tmpActCtxMTA;
+  mozilla::mscom::EnsureMTA([actCtxResourceId, &tmpActCtxMTA]() -> void {
+    tmpActCtxMTA.reset(new mozilla::mscom::ActivationContextRegion(actCtxResourceId));
+  });
+  mActCtxMTA = Move(tmpActCtxMTA);
+
   mozilla::mscom::InterceptorLog::Init();
   mozilla::mscom::RegisterArrayData(sPlatformChildArrayData);
 

accessible/ipc/win/PlatformChild.h

@@ -7,6 +7,8 @@
 #ifndef mozilla_a11y_PlatformChild_h
 #define mozilla_a11y_PlatformChild_h
 
+#include "mozilla/mscom/ActivationContext.h"
+#include "mozilla/mscom/Ptr.h"
 #include "mozilla/mscom/Registration.h"
 
 namespace mozilla {
@@ -23,6 +25,7 @@ public:
   PlatformChild& operator=(PlatformChild&&) = delete;
 
 private:
+  mscom::MTADeletePtr<mozilla::mscom::ActivationContextRegion> mActCtxMTA;
   UniquePtr<mozilla::mscom::RegisteredProxy> mCustomProxy;
   UniquePtr<mozilla::mscom::RegisteredProxy> mIA2Proxy;
   UniquePtr<mozilla::mscom::RegisteredProxy> mAccTypelib;

accessible/ipc/win/moz.build

@@ -13,9 +13,21 @@ if CONFIG['COMPILE_ENVIRONMENT'] and CONFIG['ACCESSIBILITY']:
 # With --disable-accessibility, we need to compile PDocAccessible.ipdl (which
 # also depends on COMPtrTypes.h), but not the C++.
 IPDL_SOURCES += ['PDocAccessible.ipdl']
-EXPORTS.mozilla.a11y += ['COMPtrTypes.h']
+
+EXPORTS.mozilla.a11y += [
+    'COMPtrTypes.h',
+]
 
 if CONFIG['ACCESSIBILITY']:
+    if not CONFIG['HAVE_64BIT_BUILD']:
+        EXPORTS += [
+            'IAccessible32.manifest',
+        ]
+
+    EXPORTS += [
+        'IAccessible64.manifest',
+    ]
+
     EXPORTS.mozilla.a11y += [
         'DocAccessibleChild.h',
         'HandlerProvider.h',

accessible/tests/mochitest/events/test_valuechange.html

@@ -161,9 +161,14 @@
       testValue("slider_vnvt", "plain", 0, 0, 5, 0);
       testValue("slider_vt", "hi", 0, 0, 3, 0);
       testValue("scrollbar", "5", 5, 0, 1000, 0);
+      testValue("splitter", "5", 5, 0, 1000, 0);
       testValue("progress", "22%", 22, 0, 100, 0);
       testValue("range", "6", 6, 0, 10, 1);
 
+      // Test that elements which should not expose values do not
+      var accSeparator = getAccessible("separator", [nsIAccessibleValue], null, DONOTFAIL_IF_NO_INTERFACE);
+      ok(!accSeparator, "value interface is not exposed for separator");
+
       // Test value change events
       gQueue = new eventQueue();
 
@@ -171,6 +176,7 @@
       gQueue.push(new changeARIAValue("slider_vt", undefined, "hey!"));
       gQueue.push(new changeARIAValue("slider_vnvt", "3", "sweet"));
       gQueue.push(new changeARIAValue("scrollbar", "6", undefined));
+      gQueue.push(new changeARIAValue("splitter", "6", undefined));
 
       gQueue.push(new changeValue("combobox", "hello"));
 
@@ -237,6 +243,14 @@
   <div id="scrollbar" role="scrollbar" aria-valuenow="5"
        aria-valuemin="0" aria-valuemax="1000">slider</div>
 
+  <!-- ARIA separator which is focusable (i.e. a splitter) -->
+  <div id="splitter" role="separator" tabindex="0" aria-valuenow="5"
+       aria-valuemin="0" aria-valuemax="1000">splitter</div>
+
+  <!-- ARIA separator which is not focusable and should not expose values -->
+  <div id="separator" role="separator" aria-valuenow="5"
+       aria-valuemin="0" aria-valuemax="1000">splitter</div>
+
   <!-- ARIA combobox -->
   <input id="combobox" role="combobox" aria-autocomplete="inline">
 

accessible/windows/msaa/Platform.cpp

@@ -14,10 +14,12 @@
 #include "nsIXULRuntime.h"
 #include "nsWinUtils.h"
 #include "mozilla/a11y/ProxyAccessible.h"
+#include "mozilla/mscom/ActivationContext.h"
 #include "mozilla/mscom/InterceptorLog.h"
 #include "mozilla/mscom/Registration.h"
 #include "mozilla/mscom/Utils.h"
 #include "mozilla/StaticPtr.h"
+#include "mozilla/WindowsVersion.h"
 #include "ProxyWrappers.h"
 
 using namespace mozilla;
@@ -28,7 +30,6 @@ static StaticAutoPtr<RegisteredProxy> gRegCustomProxy;
 static StaticAutoPtr<RegisteredProxy> gRegProxy;
 static StaticAutoPtr<RegisteredProxy> gRegAccTlb;
 static StaticAutoPtr<RegisteredProxy> gRegMiscTlb;
-
 void
 a11y::PlatformInit()
 {

browser/app/profile/firefox.js

@@ -314,18 +314,6 @@ pref("browser.urlbar.maxRichResults", 10);
 // autocomplete.xml.
 pref("browser.urlbar.delay", 50);
 
-// The special characters below can be typed into the urlbar to either restrict
-// the search to visited history, bookmarked, tagged pages; or force a match on
-// just the title text or url.
-pref("browser.urlbar.restrict.history", "^");
-pref("browser.urlbar.restrict.bookmark", "*");
-pref("browser.urlbar.restrict.tag", "+");
-pref("browser.urlbar.restrict.openpage", "%");
-pref("browser.urlbar.restrict.typed", "~");
-pref("browser.urlbar.restrict.searches", "$");
-pref("browser.urlbar.match.title", "#");
-pref("browser.urlbar.match.url", "@");
-
 // The default behavior for the urlbar can be configured to use any combination
 // of the match filters with each additional filter adding more results (union).
 pref("browser.urlbar.suggest.history",              true);
@@ -691,7 +679,7 @@ pref("plugins.click_to_play", true);
 pref("plugins.testmode", false);
 
 // Should plugins that are hidden show the infobar UI?
-pref("plugins.show_infobar", true);
+pref("plugins.show_infobar", false);
 
 // Should dismissing the hidden plugin infobar suppress it permanently?
 pref("plugins.remember_infobar_dismissal", true);

browser/base/content/test/plugins/browser_CTP_notificationBar.js

@@ -3,26 +3,27 @@ const gTestRoot = rootDir.replace("chrome://mochitests/content/", "http://127.0.
 var gTestBrowser = null;
 
 add_task(async function() {
+  await SpecialPowers.pushPrefEnv({ set: [
+    ["plugins.show_infobar", true],
+    ["plugins.click_to_play", true],
+    ["extensions.blocklist.supressUI", true],
+  ]});
+
   registerCleanupFunction(function() {
     clearAllPluginPermissions();
     setTestPluginEnabledState(Ci.nsIPluginTag.STATE_ENABLED, "Test Plug-in");
     setTestPluginEnabledState(Ci.nsIPluginTag.STATE_ENABLED, "Second Test Plug-in");
-    Services.prefs.clearUserPref("plugins.click_to_play");
-    Services.prefs.clearUserPref("extensions.blocklist.suppressUI");
     gBrowser.removeCurrentTab();
     window.focus();
     gTestBrowser = null;
   });
 
-  Services.prefs.setBoolPref("extensions.blocklist.suppressUI", true);
-
   let newTab = BrowserTestUtils.addTab(gBrowser);
   gBrowser.selectedTab = newTab;
   gTestBrowser = gBrowser.selectedBrowser;
 });
 
 add_task(async function() {
-  Services.prefs.setBoolPref("plugins.click_to_play", true);
   setTestPluginEnabledState(Ci.nsIPluginTag.STATE_CLICKTOPLAY, "Test Plug-in");
 
   await promiseTabLoadEvent(gBrowser.selectedTab, gTestRoot + "plugin_small.html");

browser/base/content/test/plugins/browser_CTP_remove_navigate.js

@@ -3,18 +3,19 @@ const gHttpTestRoot = gTestRoot.replace("chrome://mochitests/content/",
                                         "http://127.0.0.1:8888/");
 
 add_task(async function() {
+  await SpecialPowers.pushPrefEnv({ set: [
+    ["plugins.click_to_play", true],
+    ["extensions.blocklist.suppressUI", true],
+    ["plugins.show_infobar", true],
+  ]});
   registerCleanupFunction(function() {
     clearAllPluginPermissions();
     setTestPluginEnabledState(Ci.nsIPluginTag.STATE_ENABLED, "Test Plug-in");
     setTestPluginEnabledState(Ci.nsIPluginTag.STATE_ENABLED, "Second Test Plug-in");
-    Services.prefs.clearUserPref("plugins.click_to_play");
-    Services.prefs.clearUserPref("extensions.blocklist.suppressUI");
     gBrowser.removeCurrentTab();
     window.focus();
   });
 
-  Services.prefs.setBoolPref("plugins.click_to_play", true);
-  Services.prefs.setBoolPref("extensions.blocklist.suppressUI", true);
   setTestPluginEnabledState(Ci.nsIPluginTag.STATE_CLICKTOPLAY, "Test Plug-in");
   setTestPluginEnabledState(Ci.nsIPluginTag.STATE_CLICKTOPLAY, "Second Test Plug-in");
 });

browser/base/content/test/plugins/browser_iterate_hidden_plugins.js

@@ -21,8 +21,11 @@ add_task(async function setup() {
 
   // And then make the plugin hidden.
   await SpecialPowers.pushPrefEnv({
-    set: [[HIDDEN_CTP_PLUGIN_PREF, TEST_PLUGIN_NAME]],
-  })
+    set: [
+      [HIDDEN_CTP_PLUGIN_PREF, TEST_PLUGIN_NAME],
+      ["plugins.show_infobar", true],
+    ],
+  });
 });
 
 /**

browser/base/content/test/urlbar/browser_tabMatchesInAwesomebar.js

@@ -11,6 +11,8 @@ const TEST_URL_BASES = [
   "http://example.org/browser/browser/base/content/test/urlbar/moz.png#tabmatch"
 ];
 
+const RESTRICT_TOKEN_OPENPAGE = "%";
+
 var gController = Cc["@mozilla.org/autocomplete/controller;1"].
                   getService(Ci.nsIAutoCompleteController);
 
@@ -209,5 +211,5 @@ function checkAutocompleteResults(aExpected, aCallback) {
   };
 
   info("Searching open pages.");
-  gController.startSearch(Services.prefs.getCharPref("browser.urlbar.restrict.openpage"));
+  gController.startSearch(RESTRICT_TOKEN_OPENPAGE);
 }

browser/components/sessionstore/test/browser_599909.js

@@ -2,6 +2,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+const RESTRICT_TOKEN_OPENPAGE = "%";
+
 var stateBackup = ss.getBrowserState();
 
 function cleanup() {
@@ -116,5 +118,5 @@ function checkAutocompleteResults(aExpected, aCallback) {
   };
 
   info("Searching open pages.");
-  gController.startSearch(Services.prefs.getCharPref("browser.urlbar.restrict.openpage"));
+  gController.startSearch(RESTRICT_TOKEN_OPENPAGE);
 }

browser/themes/shared/compacttheme.inc.css

@@ -37,7 +37,9 @@
   --tab-selection-color: #f5f7fa;
   --tab-selection-background-color: #5675B9;
   --tab-selection-box-shadow: none;
+%ifndef MOZ_PHOTON_THEME
   --pinned-tab-glow: radial-gradient(22px at center calc(100% - 2px), rgba(76,158,217,0.9) 13%, rgba(0,0,0,0.4) 16%, transparent 70%);
+%endif
 
   /* Url and search bars */
   --url-and-searchbar-background-color: #171B1F;
@@ -84,7 +86,9 @@ toolbar:-moz-lwtheme-brighttext  {
   --tab-selection-color: #f5f7fa;
   --tab-selection-background-color: #4c9ed9;
   --tab-selection-box-shadow: none;
+%ifndef MOZ_PHOTON_THEME
   --pinned-tab-glow: radial-gradient(22px at center calc(100% - 2px), rgba(76,158,217,0.9) 13%, transparent 16%);
+%endif
 }
 
 %ifndef MOZ_PHOTON_THEME
@@ -324,9 +328,13 @@ window:not([chromehidden~="toolbar"]) #urlbar-wrapper > #urlbar:-moz-locale-dir(
 
 .tabbrowser-tab:-moz-any([image], [pinned]) > .tab-stack > .tab-content[attention]:not([selected="true"]),
 .tabbrowser-tab > .tab-stack > .tab-content[pinned][titlechanged]:not([selected="true"]) {
+%ifdef MOZ_PHOTON_THEME
+  background-position: center bottom -4px;
+%else
   background-image: var(--pinned-tab-glow);
   background-position: center;
   background-size: 100%;
+%endif
 }
 
 .tabbrowser-tab[image] > .tab-stack > .tab-content[attention]:not([pinned]):not([selected="true"]) {

browser/themes/shared/jar.inc.mn

@@ -187,6 +187,7 @@
   skin/classic/browser/tabbrowser/connecting.png               (../shared/tabbrowser/connecting.png)
   skin/classic/browser/tabbrowser/connecting@2x.png            (../shared/tabbrowser/connecting@2x.png)
   skin/classic/browser/tabbrowser/crashed.svg                  (../shared/tabbrowser/crashed.svg)
+  skin/classic/browser/tabbrowser/indicator-tab-attention.svg  (../shared/tabbrowser/indicator-tab-attention.svg)
   skin/classic/browser/tabbrowser/pendingpaint.png             (../shared/tabbrowser/pendingpaint.png)
   skin/classic/browser/tabbrowser/tab-audio-playing.svg        (../shared/tabbrowser/tab-audio-playing.svg)
   skin/classic/browser/tabbrowser/tab-audio-muted.svg          (../shared/tabbrowser/tab-audio-muted.svg)

browser/themes/shared/tabbrowser/indicator-tab-attention.svg

@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12">
+  <circle r="6" cy="6" cx="6" fill-opacity=".2" fill="#00C8D7" />
+  <circle r="4" cy="6" cx="6" fill-opacity=".6" fill="#00C8D7"  />
+  <circle r="2" cy="6" cx="6" fill="#00FEFF" />
+</svg>

browser/themes/shared/tabs.inc.css

@@ -471,10 +471,15 @@
 
 .tabbrowser-tab:-moz-any([image], [pinned]) > .tab-stack > .tab-content[attention]:not([selected="true"]),
 .tabbrowser-tab > .tab-stack > .tab-content[pinned][titlechanged]:not([selected="true"]) {
+%ifdef MOZ_PHOTON_THEME
+  background-image: url(chrome://browser/skin/tabbrowser/indicator-tab-attention.svg);
+  background-position: center bottom -3px;
+%else
   background-image: radial-gradient(farthest-corner at center bottom, rgb(255,255,255) 3%, rgba(186,221,251,0.75) 20%, rgba(127,179,255,0.25) 40%, transparent 70%);
   background-position: center bottom var(--tab-toolbar-navbar-overlap);
-  background-repeat: no-repeat;
   background-size: 85% 100%;
+%endif
+  background-repeat: no-repeat;
 }
 
 .tabbrowser-tab[image] > .tab-stack > .tab-content[attention]:not([pinned]):not([selected="true"]) {

config/check_macroassembler_style.py

@@ -31,8 +31,9 @@ from mozversioncontrol import get_repository_from_env
 
 
 architecture_independent = set([ 'generic' ])
-all_architecture_names = set([ 'x86', 'x64', 'arm', 'arm64', 'mips32', 'mips64' ])
-all_shared_architecture_names = set([ 'x86_shared', 'mips_shared', 'arm', 'arm64' ])
+all_unsupported_architectures_names = set([ 'mips32', 'mips64', 'mips_shared' ])
+all_architecture_names = set([ 'x86', 'x64', 'arm', 'arm64' ])
+all_shared_architecture_names = set([ 'x86_shared', 'arm', 'arm64' ])
 
 reBeforeArg = "(?<=[(,\s])"
 reArgType = "(?P<type>[\w\s:*&]+)"
@@ -97,6 +98,7 @@ def get_normalized_signatures(signature, fileAnnot = None):
 file_suffixes = set([
     a.replace('_', '-') for a in
     all_architecture_names.union(all_shared_architecture_names)
+                          .union(all_unsupported_architectures_names)
 ])
 def get_file_annotation(filename):
     origFilename = filename
@@ -210,6 +212,7 @@ def generate_file_content(signatures):
     output = []
     for s in sorted(signatures.keys()):
         archs = set(sorted(signatures[s]))
+        archs -= all_unsupported_architectures_names
         if len(archs.symmetric_difference(architecture_independent)) == 0:
             output.append(s + ';\n')
             if s.startswith('inline'):
@@ -222,8 +225,8 @@ def generate_file_content(signatures):
             elif len(archs.symmetric_difference(all_shared_architecture_names)) == 0:
                 output.append(s + ' PER_SHARED_ARCH;\n')
             else:
-                output.append(s + ' DEFINED_ON(' + ', '.join(archs) + ');\n')
-            for a in archs:
+                output.append(s + ' DEFINED_ON(' + ', '.join(sorted(archs)) + ');\n')
+            for a in sorted(archs):
                 a = a.replace('_', '-')
                 masm = '%s/MacroAssembler-%s' % (a, a)
                 if s.startswith('inline'):

config/rules.mk

@@ -891,7 +891,7 @@ ifdef MOZ_MSVCBITS
 # to use the 64-bit linker for build.rs scripts. This conflict results
 # in a build failure (see bug 1350001). So we clear out the environment
 # variables that are actually relevant to 32- vs 64-bit builds.
-environment_cleaner = PATH='' LIB='' LIBPATH=''
+environment_cleaner = -u VCINSTALLDIR PATH='' LIB='' LIBPATH=''
 # The servo build needs to know where python is, and we're removing the PATH
 # so we tell it explicitly via the PYTHON env var.
 environment_cleaner += PYTHON='$(shell which $(PYTHON))'

devtools/client/inspector/computed/test/browser.ini

@@ -44,3 +44,4 @@ skip-if = (os == 'linux' && bits == 32 && debug) # bug 1328915, disable linux32
 subsuite = clipboard
 skip-if = (os == 'linux' && bits == 32 && debug) # bug 1328915, disable linux32 debug devtools for timeouts
 [browser_computed_style-editor-link.js]
+skip-if = os == 'mac' # bug 1307846

devtools/client/locales/en-US/netmonitor.properties

@@ -640,6 +640,11 @@ netmonitor.toolbar.resetColumns=Reset Columns
 # displayed in the network table header context menu for the timing submenu
 netmonitor.toolbar.timings=Timings
 
+# LOCALIZATION NOTE (netmonitor.toolbar.responseHeaders): This is the
+# label displayed in the network table header context menu for the
+# response headers submenu.
+netmonitor.toolbar.responseHeaders=Response Headers
+
 # LOCALIZATION NOTE (netmonitor.summary.url): This is the label displayed
 # in the network details headers tab identifying the URL.
 netmonitor.summary.url=Request URL:

devtools/client/netmonitor/index.js

@@ -23,9 +23,9 @@ EventEmitter.decorate(window);
 
 pref("devtools.netmonitor.enabled", true);
 pref("devtools.netmonitor.filters", "[\"all\"]");
-pref("devtools.netmonitor.hiddenColumns",
-     "[\"cookies\",\"duration\",\"endTime\",\"latency\"," +
-     "\"protocol\",\"remoteip\",\"responseTime\",\"scheme\",\"setCookies\",\"startTime\"]"
+pref("devtools.netmonitor.visibleColumns",
+     "[\"status\",\"method\",\"file\",\"domain\",\"cause\"," +
+     "\"type\",\"transferred\",\"contentSize\",\"waterfall\"]"
 );
 pref("devtools.netmonitor.panes-network-details-width", 550);
 pref("devtools.netmonitor.panes-network-details-height", 450);

devtools/client/netmonitor/src/assets/styles/netmonitor.css

@@ -489,6 +489,9 @@ body,
   width: 8%;
 }
 
+.requests-list-response-header {
+  width: 13%;
+}
 
 .requests-list-domain.requests-list-column {
   text-align: start;

devtools/client/netmonitor/src/components/moz.build

@@ -23,6 +23,7 @@ DevToolsModules(
     'request-list-column-method.js',
     'request-list-column-protocol.js',
     'request-list-column-remote-ip.js',
+    'request-list-column-response-header.js',
     'request-list-column-response-time.js',
     'request-list-column-scheme.js',
     'request-list-column-set-cookies.js',

devtools/client/netmonitor/src/components/request-list-column-response-header.js

@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const {
+  createClass,
+  DOM,
+  PropTypes,
+} = require("devtools/client/shared/vendor/react");
+const { getResponseHeader } = require("../utils/request-utils");
+
+const { div } = DOM;
+
+/**
+ * Renders a response header column in the requests list.  The actual
+ * header to show is passed as a prop.
+ */
+const RequestListColumnResponseHeader = createClass({
+  displayName: "RequestListColumnResponseHeader",
+
+  propTypes: {
+    item: PropTypes.object.isRequired,
+    header: PropTypes.string.isRequired,
+  },
+
+  shouldComponentUpdate(nextProps) {
+    const currHeader = getResponseHeader(this.props.item, this.props.header);
+    const nextHeader = getResponseHeader(nextProps.item, nextProps.header);
+    return currHeader !== nextHeader;
+  },
+
+  render() {
+    let header = getResponseHeader(this.props.item, this.props.header);
+    return (
+      div({
+        className: "requests-list-column requests-list-response-header",
+        title: header
+      },
+        header
+      )
+    );
+  }
+});
+
+module.exports = RequestListColumnResponseHeader;

devtools/client/netmonitor/src/components/request-list-header.js

@@ -89,7 +89,8 @@ const RequestListHeader = createClass({
         HEADERS.filter((header) => columns.get(header.name)).map((header) => {
           let name = header.name;
           let boxName = header.boxName || name;
-          let label = L10N.getStr(`netmonitor.toolbar.${header.label || name}`);
+          let label = header.noLocalization
+            ? name : L10N.getStr(`netmonitor.toolbar.${header.label || name}`);
           let sorted, sortedTitle;
           let active = sort.type == name ? true : undefined;
 

devtools/client/netmonitor/src/components/request-list-item.js

@@ -12,6 +12,7 @@ const {
 } = require("devtools/client/shared/vendor/react");
 const I = require("devtools/client/shared/vendor/immutable");
 const { propertiesEqual } = require("../utils/request-utils");
+const { RESPONSE_HEADERS } = require("../constants");
 
 // Components
 const RequestListColumnCause = createFactory(require("./request-list-column-cause"));
@@ -25,6 +26,7 @@ const RequestListColumnLatency = createFactory(require("./request-list-column-la
 const RequestListColumnMethod = createFactory(require("./request-list-column-method"));
 const RequestListColumnProtocol = createFactory(require("./request-list-column-protocol"));
 const RequestListColumnRemoteIP = createFactory(require("./request-list-column-remote-ip"));
+const RequestListColumnResponseHeader = createFactory(require("./request-list-column-response-header"));
 const RequestListColumnResponseTime = createFactory(require("./request-list-column-response-time"));
 const RequestListColumnScheme = createFactory(require("./request-list-column-scheme"));
 const RequestListColumnSetCookies = createFactory(require("./request-list-column-set-cookies"));
@@ -163,6 +165,9 @@ const RequestListItem = createClass({
           RequestListColumnResponseTime({ item, firstRequestStartedMillis }),
         columns.get("duration") && RequestListColumnDuration({ item }),
         columns.get("latency") && RequestListColumnLatency({ item }),
+        ...RESPONSE_HEADERS.filter(header => columns.get(header)).map(
+          header => RequestListColumnResponseHeader({ item, header }),
+        ),
         columns.get("waterfall") &&
           RequestListColumnWaterfall({ item, firstRequestStartedMillis,
                                        onWaterfallMouseDown }),

devtools/client/netmonitor/src/constants.js

@@ -93,6 +93,18 @@ const EVENTS = {
   CONNECTED: "connected",
 };
 
+const RESPONSE_HEADERS = [
+  "Cache-Control",
+  "Connection",
+  "Content-Encoding",
+  "Content-Length",
+  "ETag",
+  "Keep-Alive",
+  "Last-Modified",
+  "Server",
+  "Vary"
+];
+
 const HEADERS = [
   {
     name: "status",
@@ -180,6 +192,13 @@ const HEADERS = [
     canFilter: false,
     subMenu: "timings",
   },
+  ...RESPONSE_HEADERS
+    .map(header => ({
+      name: header,
+      canFilter: false,
+      subMenu: "responseHeaders",
+      noLocalization: true
+    })),
   {
     name: "waterfall",
     canFilter: false,
@@ -225,6 +244,7 @@ const general = {
   EVENTS,
   FILTER_SEARCH_DELAY: 200,
   HEADERS,
+  RESPONSE_HEADERS,
   FILTER_FLAGS,
   SOURCE_EDITOR_SYNTAX_HIGHLIGHT_MAX_SIZE: 51200, // 50 KB in bytes
   REQUESTS_WATERFALL,

devtools/client/netmonitor/src/middleware/prefs.js

@@ -32,11 +32,11 @@ function prefsMiddleware(store) {
         break;
       case TOGGLE_COLUMN:
       case RESET_COLUMNS:
-        let hiddenColumns = [...store.getState().ui.columns]
-          .filter(([column, shown]) => !shown)
+        let visibleColumns = [...store.getState().ui.columns]
+          .filter(([column, shown]) => shown)
           .map(([column, shown]) => column);
         Services.prefs.setCharPref(
-          "devtools.netmonitor.hiddenColumns", JSON.stringify(hiddenColumns));
+          "devtools.netmonitor.visibleColumns", JSON.stringify(visibleColumns));
         break;
     }
     return res;

devtools/client/netmonitor/src/reducers/ui.js

@@ -11,6 +11,7 @@ const {
   OPEN_STATISTICS,
   REMOVE_SELECTED_CUSTOM_REQUEST,
   RESET_COLUMNS,
+  RESPONSE_HEADERS,
   SELECT_DETAILS_PANEL_TAB,
   SEND_CUSTOM_REQUEST,
   SELECT_REQUEST,
@@ -18,7 +19,7 @@ const {
   WATERFALL_RESIZE,
 } = require("../constants");
 
-const Columns = I.Record({
+const cols = {
   status: true,
   method: true,
   file: true,
@@ -38,7 +39,13 @@ const Columns = I.Record({
   duration: false,
   latency: false,
   waterfall: true,
-});
+};
+const Columns = I.Record(
+  Object.assign(
+    cols,
+    RESPONSE_HEADERS.reduce((acc, header) => Object.assign(acc, { [header]: false }), {})
+  )
+);
 
 const UI = I.Record({
   columns: new Columns(),

devtools/client/netmonitor/src/request-list-header-context-menu.js

@@ -16,6 +16,10 @@ const subMenuMap = HEADERS
   .filter((header) => header.hasOwnProperty("subMenu"))
   .reduce((acc, { name, subMenu }) => Object.assign(acc, { [name]: subMenu }), {});
 
+const nonLocalizedHeaders = HEADERS
+  .filter((header) => header.hasOwnProperty("noLocalization"))
+  .map((header) => header.name);
+
 class RequestListHeaderContextMenu {
   constructor({ toggleColumn, resetColumns }) {
     this.toggleColumn = toggleColumn;
@@ -37,13 +41,16 @@ class RequestListHeaderContextMenu {
    */
   open(event = {}) {
     let menu = [];
-    let subMenu = { timings: [] };
+    let subMenu = { timings: [], responseHeaders: [] };
     let onlyOneColumn = this.visibleColumns.length === 1;
 
     for (let [column, shown] of this.columns) {
+      let label = nonLocalizedHeaders.includes(column)
+          ? stringMap[column] || column
+          : L10N.getStr(`netmonitor.toolbar.${stringMap[column] || column}`);
       let entry = {
         id: `request-list-header-${column}-toggle`,
-        label: L10N.getStr(`netmonitor.toolbar.${stringMap[column] || column}`),
+        label,
         type: "checkbox",
         checked: shown,
         click: () => this.toggleColumn(column),
@@ -60,6 +67,10 @@ class RequestListHeaderContextMenu {
       label: L10N.getStr("netmonitor.toolbar.timings"),
       submenu: subMenu.timings,
     });
+    menu.push({
+      label: L10N.getStr("netmonitor.toolbar.responseHeaders"),
+      submenu: subMenu.responseHeaders,
+    });
 
     menu.push({ type: "separator" });
     menu.push({

devtools/client/netmonitor/src/utils/create-store.js

@@ -32,11 +32,11 @@ function configureStore() {
   });
 
   let columns = new Columns();
-  let hiddenColumns = getPref("devtools.netmonitor.hiddenColumns");
+  let visibleColumns = getPref("devtools.netmonitor.visibleColumns");
 
   for (let [col] of columns) {
     columns = columns.withMutations((state) => {
-      state.set(col, !hiddenColumns.includes(col));
+      state.set(col, visibleColumns.includes(col));
     });
   }
 

devtools/client/netmonitor/src/utils/prefs.js

@@ -12,6 +12,6 @@ const { PrefsHelper } = require("devtools/client/shared/prefs");
 exports.Prefs = new PrefsHelper("devtools.netmonitor", {
   networkDetailsWidth: ["Int", "panes-network-details-width"],
   networkDetailsHeight: ["Int", "panes-network-details-height"],
-  hiddenColumns: ["Json", "hiddenColumns"],
+  visibleColumns: ["Json", "visibleColumns"],
   filters: ["Json", "filters"]
 });

devtools/client/netmonitor/src/utils/request-utils.js

@@ -356,6 +356,24 @@ function getFormattedProtocol(item) {
   return protocol.join("+");
 }
 
+/**
+ * Get the value of a particular response header, or null if not
+ * present.
+ */
+function getResponseHeader(item, header) {
+  let { responseHeaders } = item;
+  if (!responseHeaders || !responseHeaders.headers.length) {
+    return null;
+  }
+  header = header.toLowerCase();
+  for (let responseHeader of responseHeaders.headers) {
+    if (responseHeader.name.toLowerCase() == header) {
+      return responseHeader.value;
+    }
+  }
+  return null;
+}
+
 module.exports = {
   getFormDataSections,
   fetchHeaders,
@@ -365,6 +383,7 @@ module.exports = {
   getAbbreviatedMimeType,
   getEndTime,
   getFormattedProtocol,
+  getResponseHeader,
   getResponseTime,
   getStartTime,
   getUrlBaseName,

devtools/client/netmonitor/src/utils/sort-predicates.js

@@ -8,9 +8,11 @@ const {
   getAbbreviatedMimeType,
   getEndTime,
   getResponseTime,
+  getResponseHeader,
   getStartTime,
   ipToLong,
 } = require("./request-utils");
+const { RESPONSE_HEADERS } = require("../constants");
 
 /**
  * Predicates used when sorting items.
@@ -92,6 +94,16 @@ function latency(first, second) {
   return result || waterfall(first, second);
 }
 
+function compareHeader(header, first, second) {
+  const result = compareValues(getResponseHeader(first, header) || "",
+                               getResponseHeader(second, header) || "");
+  return result || waterfall(first, second);
+}
+
+const responseHeaders = RESPONSE_HEADERS
+  .reduce((acc, header) => Object.assign(
+    acc, {[header]: (first, second) => compareHeader(header, first, second)}), {});
+
 function domain(first, second) {
   const firstDomain = first.urlDetails.host.toLowerCase();
   const secondDomain = second.urlDetails.host.toLowerCase();
@@ -150,7 +162,7 @@ function contentSize(first, second) {
   return result || waterfall(first, second);
 }
 
-exports.Sorters = {
+const sorters = {
   status,
   method,
   file,
@@ -171,3 +183,4 @@ exports.Sorters = {
   latency,
   waterfall,
 };
+exports.Sorters = Object.assign(sorters, responseHeaders);

devtools/client/netmonitor/test/browser_net_columns_last_column.js

@@ -18,6 +18,9 @@ add_task(function* () {
       .filter(([_, visible]) => visible);
 
     if (visibleColumns.length === 1) {
+      if (!shown) {
+        continue;
+      }
       yield testLastMenuItem(column);
       break;
     }

devtools/client/netmonitor/test/browser_net_columns_pref.js

@@ -4,38 +4,36 @@
 "use strict";
 
 /**
- * Tests if hidden columns are properly saved
+ * Tests if visible columns are properly saved
  */
 
 add_task(function* () {
-  Services.prefs.setCharPref("devtools.netmonitor.hiddenColumns",
-    '["status", "contentSize"]');
+  Services.prefs.setCharPref("devtools.netmonitor.visibleColumns",
+    '["status", "contentSize", "waterfall"]');
 
   let { monitor } = yield initNetMonitor(SIMPLE_URL);
   info("Starting test... ");
 
   let { document, parent } = monitor.panelWin;
 
-  ok(!document.querySelector("#requests-list-status-button"),
-     "Status column should be hidden");
-  ok(!document.querySelector("#requests-list-contentSize-button"),
-     "Content size column should be hidden");
-
-  yield showColumn("status");
-  yield showColumn("contentSize");
-
-  ok(!Services.prefs.getCharPref("devtools.netmonitor.hiddenColumns").includes("status"),
-    "Pref should be synced for status");
-  ok(!Services.prefs.getCharPref("devtools.netmonitor.hiddenColumns")
-    .includes("contentSize"), "Pref should be synced for contentSize");
+  ok(document.querySelector("#requests-list-status-button"),
+     "Status column should be shown");
+  ok(document.querySelector("#requests-list-contentSize-button"),
+     "Content size column should be shown");
 
   yield hideColumn("status");
+  yield hideColumn("contentSize");
 
-  ok(Services.prefs.getCharPref("devtools.netmonitor.hiddenColumns").includes("status"),
+  ok(!Services.prefs.getCharPref("devtools.netmonitor.visibleColumns").includes("status"),
     "Pref should be synced for status");
+  ok(!Services.prefs.getCharPref("devtools.netmonitor.visibleColumns")
+    .includes("contentSize"), "Pref should be synced for contentSize");
 
   yield showColumn("status");
 
+  ok(Services.prefs.getCharPref("devtools.netmonitor.visibleColumns").includes("status"),
+  "Pref should be synced for status");
+
   function* hideColumn(column) {
     info(`Clicking context-menu item for ${column}`);
     EventUtils.sendMouseEvent({ type: "contextmenu" },

devtools/client/netmonitor/test/browser_net_columns_reset.js

@@ -14,7 +14,7 @@ add_task(function* () {
   let { document, parent, windowRequire } = monitor.panelWin;
   let { Prefs } = windowRequire("devtools/client/netmonitor/src/utils/prefs");
 
-  let prefBefore = Prefs.hiddenColumns;
+  let prefBefore = Prefs.visibleColumns;
 
   hideColumn("status");
   hideColumn("waterfall");
@@ -24,7 +24,7 @@ add_task(function* () {
 
   parent.document.querySelector("#request-list-header-reset-columns").click();
 
-  is(JSON.stringify(prefBefore), JSON.stringify(Prefs.hiddenColumns),
+  is(JSON.stringify(prefBefore), JSON.stringify(Prefs.visibleColumns),
      "Reset columns item should reset columns pref");
 
   function* hideColumn(column) {

devtools/client/netmonitor/test/browser_net_timing-division.js

@@ -8,11 +8,10 @@
  */
 
 add_task(function* () {
-  // Hide file, protocol, remoteip columns to make sure timing division
-  // can render properly
+  // Make sure timing division can render properly
   Services.prefs.setCharPref(
-    "devtools.netmonitor.hiddenColumns",
-    "[\"file\",\"protocol\",\"remoteip\"]"
+    "devtools.netmonitor.visibleColumns",
+    "[\"waterfall\"]"
   );
 
   let { tab, monitor } = yield initNetMonitor(CUSTOM_GET_URL);

devtools/client/netmonitor/test/head.js

@@ -92,8 +92,14 @@ Services.prefs.setBoolPref("devtools.debugger.log", false);
 // Always reset some prefs to their original values after the test finishes.
 const gDefaultFilters = Services.prefs.getCharPref("devtools.netmonitor.filters");
 
-// Reveal all hidden columns for test
-Services.prefs.setCharPref("devtools.netmonitor.hiddenColumns", "[]");
+// Reveal many columns for test
+Services.prefs.setCharPref(
+  "devtools.netmonitor.visibleColumns",
+  "[\"cause\",\"contentSize\",\"cookies\",\"domain\",\"duration\"," +
+  "\"endTime\",\"file\",\"latency\",\"method\",\"protocol\"," +
+  "\"remoteip\",\"responseTime\",\"scheme\",\"setCookies\"," +
+  "\"startTime\",\"status\",\"transferred\",\"type\",\"waterfall\"]"
+);
 
 registerCleanupFunction(() => {
   info("finish() was called, cleaning up...");

devtools/client/preferences/devtools.js

@@ -160,8 +160,8 @@ pref("devtools.netmonitor.enabled", true);
 pref("devtools.netmonitor.panes-network-details-width", 550);
 pref("devtools.netmonitor.panes-network-details-height", 450);
 pref("devtools.netmonitor.filters", "[\"all\"]");
-pref("devtools.netmonitor.hiddenColumns",
-  "[\"cookies\",\"duration\",\"endTime\",\"latency\",\"protocol\",\"remoteip\",\"responseTime\",\"scheme\",\"setCookies\",\"startTime\"]"
+pref("devtools.netmonitor.visibleColumns",
+  "[\"status\",\"method\",\"file\",\"domain\",\"cause\",\"type\",\"transferred\",\"contentSize\",\"waterfall\"]"
 );
 
 // The default Network monitor HAR export setting

devtools/client/themes/animationinspector.css

@@ -467,18 +467,12 @@ body {
   z-index: 1;
 }
 
-.animation-timeline .all-properties .name::after {
-  background-color: var(--theme-content-color3);
-  clip-path: url(images/animation-fast-track.svg#thunderbolt);
-  background-repeat: no-repeat;
-  background-position: center;
-}
-
+.animation-timeline .all-properties .name::after,
 .animation-timeline .some-properties .name::after {
-  background-color: var(--theme-content-color3);
-  clip-path: url(images/animation-fast-track.svg#thunderbolt);
+  -moz-context-properties: fill;
+  fill: var(--theme-content-color3);
+  background-image: url("images/animation-fast-track.svg");
   background-repeat: no-repeat;
-  background-position: center;
 }
 
 .animation-timeline .animation .delay,
@@ -601,8 +595,9 @@ body {
   display: inline-block;
   width: 17px;
   height: 17px;
-  background-color: var(--background-color);
-  clip-path: url(images/animation-fast-track.svg#thunderbolt);
+  -moz-context-properties: fill;
+  fill: var(--background-color);
+  background-image: url("images/animation-fast-track.svg");
   vertical-align: middle;
 }
 

devtools/client/themes/images/animation-fast-track.svg

@@ -1,8 +1,6 @@
 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg xmlns="http://www.w3.org/2000/svg" width="0" height="0">
-  <clipPath id="thunderbolt" transform="scale(1.4)">
-    <path d="M5.75 0l-1 5.5 2 .5-3.5 6 1-5-2-.5z"/>
-  </clipPath>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 9 12" width="16" height="16">
+  <path d="M5.75 0l-1 5.5 2 .5-3.5 6 1-5-2-.5z" fill="context-fill"/>
 </svg>

dom/base/Selection.cpp

@@ -3499,7 +3499,7 @@ Selection::PostScrollSelectionIntoViewEvent(
     new ScrollSelectionIntoViewEvent(this, aRegion, aVertical, aHorizontal,
                                      aFlags);
   mScrollEvent = ev;
-  refreshDriver->AddPendingSelectionScroll(ev);
+  refreshDriver->AddEarlyRunner(ev);
   return NS_OK;
 }
 

dom/base/nsContentList.cpp

@@ -91,7 +91,8 @@ NS_INTERFACE_MAP_END
 
 
 NS_IMPL_CYCLE_COLLECTING_ADDREF(nsBaseContentList)
-NS_IMPL_CYCLE_COLLECTING_RELEASE(nsBaseContentList)
+NS_IMPL_CYCLE_COLLECTING_RELEASE_WITH_LAST_RELEASE(nsBaseContentList,
+                                                   LastRelease())
 
 
 NS_IMETHODIMP
@@ -592,6 +593,17 @@ nsContentList::NodeWillBeDestroyed(const nsINode* aNode)
   SetDirty();
 }
 
+void
+nsContentList::LastRelease()
+{
+  RemoveFromCaches();
+  if (mRootNode) {
+    mRootNode->RemoveMutationObserver(this);
+    mRootNode = nullptr;
+  }
+  SetDirty();
+}
+
 NS_IMETHODIMP
 nsContentList::GetLength(uint32_t* aLength)
 {

dom/base/nsContentList.h

@@ -95,6 +95,9 @@ public:
   {
     mElements.SetCapacity(aCapacity);
   }
+
+  virtual void LastRelease() {}
+
 protected:
   virtual ~nsBaseContentList();
 
@@ -352,6 +355,8 @@ public:
     Reset();
   }
 
+  virtual void LastRelease() override;
+
 protected:
   /**
    * Returns whether the element matches our criterion

dom/base/nsTextFragment.h

@@ -200,7 +200,7 @@ public:
    */
   char16_t CharAt(int32_t aIndex) const
   {
-    NS_ASSERTION(uint32_t(aIndex) < mState.mLength, "bad index");
+    MOZ_ASSERT(uint32_t(aIndex) < mState.mLength, "bad index");
     return mState.mIs2b ? m2b[aIndex] : static_cast<unsigned char>(m1b[aIndex]);
   }
 

dom/events/EventStateManager.h

@@ -153,6 +153,8 @@ public:
   /**
    * TryToFlushPendingNotificationsToIME() suggests flushing pending
    * notifications to IME to IMEContentObserver.
+   * Doesn't do anything in child processes where flushing happens
+   * asynchronously.
    */
   void TryToFlushPendingNotificationsToIME();
 

dom/events/IMEContentObserver.cpp

@@ -31,6 +31,7 @@
 #include "nsISupports.h"
 #include "nsIWidget.h"
 #include "nsPresContext.h"
+#include "nsRefreshDriver.h"
 #include "nsWeakReference.h"
 #include "WritingModes.h"
 
@@ -1731,15 +1732,7 @@ IMEContentObserver::FlushMergeableNotifications()
   // it may kick runnable event immediately after DOM tree is changed but
   // the selection range isn't modified yet.
   mQueuedSender = new IMENotificationSender(this);
-  nsIScriptGlobalObject* globalObject = mDocShell ?
-                                        mDocShell->GetScriptGlobalObject() :
-                                        nullptr;
-  if (globalObject) {
-    RefPtr<IMENotificationSender> queuedSender = mQueuedSender;
-    globalObject->Dispatch(nullptr, TaskCategory::Other, queuedSender.forget());
-  } else {
-    NS_DispatchToCurrentThread(mQueuedSender);
-  }
+  mQueuedSender->Dispatch(mDocShell);
   MOZ_LOG(sIMECOLog, LogLevel::Debug,
     ("0x%p IMEContentObserver::FlushMergeableNotifications(), "
      "finished", this));
@@ -1748,7 +1741,8 @@ IMEContentObserver::FlushMergeableNotifications()
 void
 IMEContentObserver::TryToFlushPendingNotifications()
 {
-  if (!mQueuedSender || mSendingNotification != NOTIFY_IME_OF_NOTHING) {
+  if (!mQueuedSender || mSendingNotification != NOTIFY_IME_OF_NOTHING ||
+      XRE_IsContentProcess()) {
     return;
   }
 
@@ -1767,28 +1761,30 @@ bool
 IMEContentObserver::AChangeEvent::CanNotifyIME(
                                     ChangeEventType aChangeEventType) const
 {
-  if (NS_WARN_IF(!mIMEContentObserver)) {
+  RefPtr<IMEContentObserver> observer = GetObserver();
+  if (NS_WARN_IF(!observer)) {
     return false;
   }
+
   if (aChangeEventType == eChangeEventType_CompositionEventHandled) {
-    return mIMEContentObserver->mWidget != nullptr;
+    return observer->mWidget != nullptr;
   }
-  State state = mIMEContentObserver->GetState();
+  State state = observer->GetState();
   // If it's not initialized, we should do nothing.
   if (state == eState_NotObserving) {
     return false;
   }
   // If setting focus, just check the state.
   if (aChangeEventType == eChangeEventType_Focus) {
-    return !NS_WARN_IF(mIMEContentObserver->mIMEHasFocus);
+    return !NS_WARN_IF(observer->mIMEHasFocus);
   }
   // If we've not notified IME of focus yet, we shouldn't notify anything.
-  if (!mIMEContentObserver->mIMEHasFocus) {
+  if (!observer->mIMEHasFocus) {
     return false;
   }
 
   // If IME has focus, IMEContentObserver must hold the widget.
-  MOZ_ASSERT(mIMEContentObserver->mWidget);
+  MOZ_ASSERT(observer->mWidget);
 
   return true;
 }
@@ -1800,17 +1796,23 @@ IMEContentObserver::AChangeEvent::IsSafeToNotifyIME(
   if (NS_WARN_IF(!nsContentUtils::IsSafeToRunScript())) {
     return false;
   }
+
+  RefPtr<IMEContentObserver> observer = GetObserver();
+  if (!observer) {
+    return false;
+  }
+
   // While we're sending a notification, we shouldn't send another notification
   // recursively.
-  if (mIMEContentObserver->mSendingNotification != NOTIFY_IME_OF_NOTHING) {
+  if (observer->mSendingNotification != NOTIFY_IME_OF_NOTHING) {
     MOZ_LOG(sIMECOLog, LogLevel::Debug,
       ("0x%p   IMEContentObserver::AChangeEvent::IsSafeToNotifyIME(), "
        "putting off sending notification due to detecting recursive call, "
        "mIMEContentObserver={ mSendingNotification=%s }",
-       this, ToChar(mIMEContentObserver->mSendingNotification)));
+       this, ToChar(observer->mSendingNotification)));
     return false;
   }
-  State state = mIMEContentObserver->GetState();
+  State state = observer->GetState();
   if (aChangeEventType == eChangeEventType_Focus) {
     if (NS_WARN_IF(state != eState_Initializing && state != eState_Observing)) {
       return false;
@@ -1820,13 +1822,39 @@ IMEContentObserver::AChangeEvent::IsSafeToNotifyIME(
   } else if (state != eState_Observing) {
     return false;
   }
-  return mIMEContentObserver->IsSafeToNotifyIME();
+  return observer->IsSafeToNotifyIME();
 }
 
 /******************************************************************************
  * mozilla::IMEContentObserver::IMENotificationSender
  ******************************************************************************/
 
+void
+IMEContentObserver::IMENotificationSender::Dispatch(nsIDocShell* aDocShell)
+{
+  if (XRE_IsContentProcess() && aDocShell) {
+    RefPtr<nsPresContext> presContext;
+    aDocShell->GetPresContext(getter_AddRefs(presContext));
+    if (presContext) {
+      nsRefreshDriver* refreshDriver = presContext->RefreshDriver();
+      if (refreshDriver) {
+        refreshDriver->AddEarlyRunner(this);
+        return;
+      }
+    }
+  }
+
+  nsIScriptGlobalObject* globalObject =
+    aDocShell ? aDocShell->GetScriptGlobalObject() : nullptr;
+  if (globalObject) {
+    RefPtr<IMENotificationSender> queuedSender = this;
+    globalObject->Dispatch(nullptr, TaskCategory::Other,
+                           queuedSender.forget());
+  } else {
+    NS_DispatchToCurrentThread(this);
+  }
+}
+
 NS_IMETHODIMP
 IMEContentObserver::IMENotificationSender::Run()
 {
@@ -1837,65 +1865,59 @@ IMEContentObserver::IMENotificationSender::Run()
     return NS_OK;
   }
 
+  RefPtr<IMEContentObserver> observer = GetObserver();
+  if (!observer) {
+    return NS_OK;
+  }
+
   AutoRestore<bool> running(mIsRunning);
   mIsRunning = true;
 
   // This instance was already performed forcibly.
-  if (mIMEContentObserver->mQueuedSender != this) {
+  if (observer->mQueuedSender != this) {
     return NS_OK;
   }
 
   // NOTE: Reset each pending flag because sending notification may cause
   //       another change.
 
-  if (mIMEContentObserver->mNeedsToNotifyIMEOfFocusSet) {
-    mIMEContentObserver->mNeedsToNotifyIMEOfFocusSet = false;
+  if (observer->mNeedsToNotifyIMEOfFocusSet) {
+    observer->mNeedsToNotifyIMEOfFocusSet = false;
     SendFocusSet();
-    mIMEContentObserver->mQueuedSender = nullptr;
+    observer->mQueuedSender = nullptr;
     // If it's not safe to notify IME of focus, SendFocusSet() sets
     // mNeedsToNotifyIMEOfFocusSet true again.  For guaranteeing to send the
     // focus notification later,  we should put a new sender into the queue but
     // this case must be rare.  Note that if mIMEContentObserver is already
     // destroyed, mNeedsToNotifyIMEOfFocusSet is never set true again.
-    if (mIMEContentObserver->mNeedsToNotifyIMEOfFocusSet) {
-      MOZ_ASSERT(!mIMEContentObserver->mIMEHasFocus);
+    if (observer->mNeedsToNotifyIMEOfFocusSet) {
+      MOZ_ASSERT(!observer->mIMEHasFocus);
       MOZ_LOG(sIMECOLog, LogLevel::Debug,
         ("0x%p IMEContentObserver::IMENotificationSender::Run(), "
          "posting IMENotificationSender to current thread", this));
-      mIMEContentObserver->mQueuedSender =
-        new IMENotificationSender(mIMEContentObserver);
-      nsIScriptGlobalObject* globalObject =
-        mIMEContentObserver->mDocShell ?
-        mIMEContentObserver->mDocShell->GetScriptGlobalObject() : nullptr;
-      if (globalObject) {
-        RefPtr<IMENotificationSender> queuedSender =
-          mIMEContentObserver->mQueuedSender;
-        globalObject->Dispatch(nullptr, TaskCategory::Other,
-                               queuedSender.forget());
-      } else {
-        NS_DispatchToCurrentThread(mIMEContentObserver->mQueuedSender);
-      }
+      observer->mQueuedSender = new IMENotificationSender(observer);
+      observer->mQueuedSender->Dispatch(observer->mDocShell);
       return NS_OK;
     }
     // This is the first notification to IME. So, we don't need to notify
     // anymore since IME starts to query content after it gets focus.
-    mIMEContentObserver->ClearPendingNotifications();
+    observer->ClearPendingNotifications();
     return NS_OK;
   }
 
-  if (mIMEContentObserver->mNeedsToNotifyIMEOfTextChange) {
-    mIMEContentObserver->mNeedsToNotifyIMEOfTextChange = false;
+  if (observer->mNeedsToNotifyIMEOfTextChange) {
+    observer->mNeedsToNotifyIMEOfTextChange = false;
     SendTextChange();
   }
 
   // If a text change notification causes another text change again, we should
   // notify IME of that before sending a selection change notification.
-  if (!mIMEContentObserver->mNeedsToNotifyIMEOfTextChange) {
+  if (!observer->mNeedsToNotifyIMEOfTextChange) {
     // Be aware, PuppetWidget depends on the order of this. A selection change
     // notification should not be sent before a text change notification because
     // PuppetWidget shouldn't query new text content every selection change.
-    if (mIMEContentObserver->mNeedsToNotifyIMEOfSelectionChange) {
-      mIMEContentObserver->mNeedsToNotifyIMEOfSelectionChange = false;
+    if (observer->mNeedsToNotifyIMEOfSelectionChange) {
+      observer->mNeedsToNotifyIMEOfSelectionChange = false;
       SendSelectionChange();
     }
   }
@@ -1904,10 +1926,10 @@ IMEContentObserver::IMENotificationSender::Run()
   // selection change notification causes either a text change or another
   // selection change, we should notify IME of those before sending a position
   // change notification.
-  if (!mIMEContentObserver->mNeedsToNotifyIMEOfTextChange &&
-      !mIMEContentObserver->mNeedsToNotifyIMEOfSelectionChange) {
-    if (mIMEContentObserver->mNeedsToNotifyIMEOfPositionChange) {
-      mIMEContentObserver->mNeedsToNotifyIMEOfPositionChange = false;
+  if (!observer->mNeedsToNotifyIMEOfTextChange &&
+      !observer->mNeedsToNotifyIMEOfSelectionChange) {
+    if (observer->mNeedsToNotifyIMEOfPositionChange) {
+      observer->mNeedsToNotifyIMEOfPositionChange = false;
       SendPositionChange();
     }
   }
@@ -1915,20 +1937,20 @@ IMEContentObserver::IMENotificationSender::Run()
   // Composition event handled notification should be sent after all the
   // other notifications because this notifies widget of finishing all pending
   // events are handled completely.
-  if (!mIMEContentObserver->mNeedsToNotifyIMEOfTextChange &&
-      !mIMEContentObserver->mNeedsToNotifyIMEOfSelectionChange &&
-      !mIMEContentObserver->mNeedsToNotifyIMEOfPositionChange) {
-    if (mIMEContentObserver->mNeedsToNotifyIMEOfCompositionEventHandled) {
-      mIMEContentObserver->mNeedsToNotifyIMEOfCompositionEventHandled = false;
+  if (!observer->mNeedsToNotifyIMEOfTextChange &&
+      !observer->mNeedsToNotifyIMEOfSelectionChange &&
+      !observer->mNeedsToNotifyIMEOfPositionChange) {
+    if (observer->mNeedsToNotifyIMEOfCompositionEventHandled) {
+      observer->mNeedsToNotifyIMEOfCompositionEventHandled = false;
       SendCompositionEventHandled();
     }
   }
 
-  mIMEContentObserver->mQueuedSender = nullptr;
+  observer->mQueuedSender = nullptr;
 
   // If notifications caused some new change, we should notify them now.
-  if (mIMEContentObserver->NeedsToNotifyIMEOfSomething()) {
-    if (mIMEContentObserver->GetState() == eState_StoppedObserving) {
+  if (observer->NeedsToNotifyIMEOfSomething()) {
+    if (observer->GetState() == eState_StoppedObserving) {
       MOZ_LOG(sIMECOLog, LogLevel::Debug,
         ("0x%p IMEContentObserver::IMENotificationSender::Run(), "
          "waiting IMENotificationSender to be reinitialized", this));
@@ -1936,19 +1958,8 @@ IMEContentObserver::IMENotificationSender::Run()
       MOZ_LOG(sIMECOLog, LogLevel::Debug,
         ("0x%p IMEContentObserver::IMENotificationSender::Run(), "
          "posting IMENotificationSender to current thread", this));
-      mIMEContentObserver->mQueuedSender =
-        new IMENotificationSender(mIMEContentObserver);
-      nsIScriptGlobalObject* globalObject =
-        mIMEContentObserver->mDocShell ?
-        mIMEContentObserver->mDocShell->GetScriptGlobalObject() : nullptr;
-      if (globalObject) {
-        RefPtr<IMENotificationSender> queuedSender =
-          mIMEContentObserver->mQueuedSender;
-        globalObject->Dispatch(nullptr, TaskCategory::Other,
-                               queuedSender.forget());
-      } else {
-        NS_DispatchToCurrentThread(mIMEContentObserver->mQueuedSender);
-      }
+      observer->mQueuedSender = new IMENotificationSender(observer);
+      observer->mQueuedSender->Dispatch(observer->mDocShell);
     }
   }
   return NS_OK;
@@ -1957,6 +1968,11 @@ IMEContentObserver::IMENotificationSender::Run()
 void
 IMEContentObserver::IMENotificationSender::SendFocusSet()
 {
+  RefPtr<IMEContentObserver> observer = GetObserver();
+  if (!observer) {
+    return;
+  }
+
   if (!CanNotifyIME(eChangeEventType_Focus)) {
     // If IMEContentObserver has already gone, we don't need to notify IME of
     // focus.
@@ -1964,7 +1980,7 @@ IMEContentObserver::IMENotificationSender::SendFocusSet()
       ("0x%p IMEContentObserver::IMENotificationSender::"
        "SendFocusSet(), FAILED, due to impossible to notify IME of focus",
        this));
-    mIMEContentObserver->ClearPendingNotifications();
+    observer->ClearPendingNotifications();
     return;
   }
 
@@ -1972,30 +1988,30 @@ IMEContentObserver::IMENotificationSender::SendFocusSet()
     MOZ_LOG(sIMECOLog, LogLevel::Debug,
       ("0x%p   IMEContentObserver::IMENotificationSender::"
        "SendFocusSet(), retrying to send NOTIFY_IME_OF_FOCUS...", this));
-    mIMEContentObserver->PostFocusSetNotification();
+    observer->PostFocusSetNotification();
     return;
   }
 
-  mIMEContentObserver->mIMEHasFocus = true;
+  observer->mIMEHasFocus = true;
   // Initialize selection cache with the first selection data.
-  mIMEContentObserver->UpdateSelectionCache();
+  observer->UpdateSelectionCache();
 
   MOZ_LOG(sIMECOLog, LogLevel::Info,
     ("0x%p IMEContentObserver::IMENotificationSender::"
      "SendFocusSet(), sending NOTIFY_IME_OF_FOCUS...", this));
 
-  MOZ_RELEASE_ASSERT(mIMEContentObserver->mSendingNotification ==
+  MOZ_RELEASE_ASSERT(observer->mSendingNotification ==
                        NOTIFY_IME_OF_NOTHING);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_FOCUS;
+  observer->mSendingNotification = NOTIFY_IME_OF_FOCUS;
   IMEStateManager::NotifyIME(IMENotification(NOTIFY_IME_OF_FOCUS),
-                             mIMEContentObserver->mWidget);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_NOTHING;
+                             observer->mWidget);
+  observer->mSendingNotification = NOTIFY_IME_OF_NOTHING;
 
   // IMENotificationRequests referred by ObserveEditableNode() may be different
   // before or after widget receives NOTIFY_IME_OF_FOCUS.  Therefore, we need
   // to guarantee to call ObserveEditableNode() after sending
   // NOTIFY_IME_OF_FOCUS.
-  mIMEContentObserver->OnIMEReceivedFocus();
+  observer->OnIMEReceivedFocus();
 
   MOZ_LOG(sIMECOLog, LogLevel::Debug,
     ("0x%p IMEContentObserver::IMENotificationSender::"
@@ -2005,6 +2021,11 @@ IMEContentObserver::IMENotificationSender::SendFocusSet()
 void
 IMEContentObserver::IMENotificationSender::SendSelectionChange()
 {
+  RefPtr<IMEContentObserver> observer = GetObserver();
+  if (!observer) {
+    return;
+  }
+
   if (!CanNotifyIME(eChangeEventType_Selection)) {
     MOZ_LOG(sIMECOLog, LogLevel::Debug,
       ("0x%p IMEContentObserver::IMENotificationSender::"
@@ -2018,12 +2039,12 @@ IMEContentObserver::IMENotificationSender::SendSelectionChange()
       ("0x%p   IMEContentObserver::IMENotificationSender::"
        "SendSelectionChange(), retrying to send "
        "NOTIFY_IME_OF_SELECTION_CHANGE...", this));
-    mIMEContentObserver->PostSelectionChangeNotification();
+    observer->PostSelectionChangeNotification();
     return;
   }
 
-  SelectionChangeData lastSelChangeData = mIMEContentObserver->mSelectionData;
-  if (NS_WARN_IF(!mIMEContentObserver->UpdateSelectionCache())) {
+  SelectionChangeData lastSelChangeData = observer->mSelectionData;
+  if (NS_WARN_IF(!observer->UpdateSelectionCache())) {
     MOZ_LOG(sIMECOLog, LogLevel::Error,
       ("0x%p IMEContentObserver::IMENotificationSender::"
        "SendSelectionChange(), FAILED, due to UpdateSelectionCache() failure",
@@ -2042,7 +2063,7 @@ IMEContentObserver::IMENotificationSender::SendSelectionChange()
 
   // If the selection isn't changed actually, we shouldn't notify IME of
   // selection change.
-  SelectionChangeData& newSelChangeData = mIMEContentObserver->mSelectionData;
+  SelectionChangeData& newSelChangeData = observer->mSelectionData;
   if (lastSelChangeData.IsValid() &&
       lastSelChangeData.mOffset == newSelChangeData.mOffset &&
       lastSelChangeData.String() == newSelChangeData.String() &&
@@ -2062,13 +2083,13 @@ IMEContentObserver::IMENotificationSender::SendSelectionChange()
      this, SelectionChangeDataToString(newSelChangeData).get()));
 
   IMENotification notification(NOTIFY_IME_OF_SELECTION_CHANGE);
-  notification.SetData(mIMEContentObserver->mSelectionData);
+  notification.SetData(observer->mSelectionData);
 
-  MOZ_RELEASE_ASSERT(mIMEContentObserver->mSendingNotification ==
+  MOZ_RELEASE_ASSERT(observer->mSendingNotification ==
                        NOTIFY_IME_OF_NOTHING);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_SELECTION_CHANGE;
-  IMEStateManager::NotifyIME(notification, mIMEContentObserver->mWidget);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_NOTHING;
+  observer->mSendingNotification = NOTIFY_IME_OF_SELECTION_CHANGE;
+  IMEStateManager::NotifyIME(notification, observer->mWidget);
+  observer->mSendingNotification = NOTIFY_IME_OF_NOTHING;
 
   MOZ_LOG(sIMECOLog, LogLevel::Debug,
     ("0x%p IMEContentObserver::IMENotificationSender::"
@@ -2078,6 +2099,11 @@ IMEContentObserver::IMENotificationSender::SendSelectionChange()
 void
 IMEContentObserver::IMENotificationSender::SendTextChange()
 {
+  RefPtr<IMEContentObserver> observer = GetObserver();
+  if (!observer) {
+    return;
+  }
+
   if (!CanNotifyIME(eChangeEventType_Text)) {
     MOZ_LOG(sIMECOLog, LogLevel::Debug,
       ("0x%p IMEContentObserver::IMENotificationSender::"
@@ -2091,17 +2117,17 @@ IMEContentObserver::IMENotificationSender::SendTextChange()
       ("0x%p   IMEContentObserver::IMENotificationSender::"
        "SendTextChange(), retrying to send NOTIFY_IME_OF_TEXT_CHANGE...",
        this));
-    mIMEContentObserver->PostTextChangeNotification();
+    observer->PostTextChangeNotification();
     return;
   }
 
   // If text change notification is unnecessary anymore, just cancel it.
-  if (!mIMEContentObserver->NeedsTextChangeNotification()) {
+  if (!observer->NeedsTextChangeNotification()) {
     MOZ_LOG(sIMECOLog, LogLevel::Warning,
       ("0x%p   IMEContentObserver::IMENotificationSender::"
        "SendTextChange(), canceling sending NOTIFY_IME_OF_TEXT_CHANGE",
        this));
-    mIMEContentObserver->CancelNotifyingIMEOfTextChange();
+    observer->CancelNotifyingIMEOfTextChange();
     return;
   }
 
@@ -2109,17 +2135,17 @@ IMEContentObserver::IMENotificationSender::SendTextChange()
     ("0x%p IMEContentObserver::IMENotificationSender::"
      "SendTextChange(), sending NOTIFY_IME_OF_TEXT_CHANGE... "
      "mIMEContentObserver={ mTextChangeData=%s }",
-     this, TextChangeDataToString(mIMEContentObserver->mTextChangeData).get()));
+     this, TextChangeDataToString(observer->mTextChangeData).get()));
 
   IMENotification notification(NOTIFY_IME_OF_TEXT_CHANGE);
-  notification.SetData(mIMEContentObserver->mTextChangeData);
-  mIMEContentObserver->mTextChangeData.Clear();
+  notification.SetData(observer->mTextChangeData);
+  observer->mTextChangeData.Clear();
 
-  MOZ_RELEASE_ASSERT(mIMEContentObserver->mSendingNotification ==
+  MOZ_RELEASE_ASSERT(observer->mSendingNotification ==
                        NOTIFY_IME_OF_NOTHING);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_TEXT_CHANGE;
-  IMEStateManager::NotifyIME(notification, mIMEContentObserver->mWidget);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_NOTHING;
+  observer->mSendingNotification = NOTIFY_IME_OF_TEXT_CHANGE;
+  IMEStateManager::NotifyIME(notification, observer->mWidget);
+  observer->mSendingNotification = NOTIFY_IME_OF_NOTHING;
 
   MOZ_LOG(sIMECOLog, LogLevel::Debug,
     ("0x%p IMEContentObserver::IMENotificationSender::"
@@ -2129,6 +2155,11 @@ IMEContentObserver::IMENotificationSender::SendTextChange()
 void
 IMEContentObserver::IMENotificationSender::SendPositionChange()
 {
+  RefPtr<IMEContentObserver> observer = GetObserver();
+  if (!observer) {
+    return;
+  }
+
   if (!CanNotifyIME(eChangeEventType_Position)) {
     MOZ_LOG(sIMECOLog, LogLevel::Debug,
       ("0x%p IMEContentObserver::IMENotificationSender::"
@@ -2142,17 +2173,17 @@ IMEContentObserver::IMENotificationSender::SendPositionChange()
       ("0x%p   IMEContentObserver::IMENotificationSender::"
        "SendPositionChange(), retrying to send "
        "NOTIFY_IME_OF_POSITION_CHANGE...", this));
-    mIMEContentObserver->PostPositionChangeNotification();
+    observer->PostPositionChangeNotification();
     return;
   }
 
   // If position change notification is unnecessary anymore, just cancel it.
-  if (!mIMEContentObserver->NeedsPositionChangeNotification()) {
+  if (!observer->NeedsPositionChangeNotification()) {
     MOZ_LOG(sIMECOLog, LogLevel::Warning,
       ("0x%p   IMEContentObserver::IMENotificationSender::"
        "SendPositionChange(), canceling sending NOTIFY_IME_OF_POSITION_CHANGE",
        this));
-    mIMEContentObserver->CancelNotifyingIMEOfPositionChange();
+    observer->CancelNotifyingIMEOfPositionChange();
     return;
   }
 
@@ -2160,12 +2191,12 @@ IMEContentObserver::IMENotificationSender::SendPositionChange()
     ("0x%p IMEContentObserver::IMENotificationSender::"
      "SendPositionChange(), sending NOTIFY_IME_OF_POSITION_CHANGE...", this));
 
-  MOZ_RELEASE_ASSERT(mIMEContentObserver->mSendingNotification ==
+  MOZ_RELEASE_ASSERT(observer->mSendingNotification ==
                        NOTIFY_IME_OF_NOTHING);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_POSITION_CHANGE;
+  observer->mSendingNotification = NOTIFY_IME_OF_POSITION_CHANGE;
   IMEStateManager::NotifyIME(IMENotification(NOTIFY_IME_OF_POSITION_CHANGE),
-                             mIMEContentObserver->mWidget);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_NOTHING;
+                             observer->mWidget);
+  observer->mSendingNotification = NOTIFY_IME_OF_NOTHING;
 
   MOZ_LOG(sIMECOLog, LogLevel::Debug,
     ("0x%p IMEContentObserver::IMENotificationSender::"
@@ -2175,6 +2206,11 @@ IMEContentObserver::IMENotificationSender::SendPositionChange()
 void
 IMEContentObserver::IMENotificationSender::SendCompositionEventHandled()
 {
+  RefPtr<IMEContentObserver> observer = GetObserver();
+  if (!observer) {
+    return;
+  }
+
   if (!CanNotifyIME(eChangeEventType_CompositionEventHandled)) {
     MOZ_LOG(sIMECOLog, LogLevel::Debug,
       ("0x%p IMEContentObserver::IMENotificationSender::"
@@ -2188,7 +2224,7 @@ IMEContentObserver::IMENotificationSender::SendCompositionEventHandled()
       ("0x%p   IMEContentObserver::IMENotificationSender::"
        "SendCompositionEventHandled(), retrying to send "
        "NOTIFY_IME_OF_POSITION_CHANGE...", this));
-    mIMEContentObserver->PostCompositionEventHandledNotification();
+    observer->PostCompositionEventHandledNotification();
     return;
   }
 
@@ -2197,14 +2233,14 @@ IMEContentObserver::IMENotificationSender::SendCompositionEventHandled()
      "SendCompositionEventHandled(), sending "
      "NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED...", this));
 
-  MOZ_RELEASE_ASSERT(mIMEContentObserver->mSendingNotification ==
+  MOZ_RELEASE_ASSERT(observer->mSendingNotification ==
                        NOTIFY_IME_OF_NOTHING);
-  mIMEContentObserver->mSendingNotification =
+  observer->mSendingNotification =
                          NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED;
   IMEStateManager::NotifyIME(
                      IMENotification(NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED),
-                     mIMEContentObserver->mWidget);
-  mIMEContentObserver->mSendingNotification = NOTIFY_IME_OF_NOTHING;
+                     observer->mWidget);
+  observer->mSendingNotification = NOTIFY_IME_OF_NOTHING;
 
   MOZ_LOG(sIMECOLog, LogLevel::Debug,
     ("0x%p IMEContentObserver::IMENotificationSender::"

dom/events/IMEContentObserver.h

@@ -154,6 +154,8 @@ public:
   /**
    * TryToFlushPendingNotifications() should be called when pending events
    * should be flushed.  This tries to run the queued IMENotificationSender.
+   * Doesn't do anything in child processes where flushing happens
+   * asynchronously.
    */
   void TryToFlushPendingNotifications();
 
@@ -331,12 +333,21 @@ private:
     explicit AChangeEvent(const char* aName,
                           IMEContentObserver* aIMEContentObserver)
       : Runnable(aName)
-      , mIMEContentObserver(aIMEContentObserver)
+      , mIMEContentObserver(
+          do_GetWeakReference(
+            static_cast<nsISelectionListener*>(aIMEContentObserver)))
     {
-      MOZ_ASSERT(mIMEContentObserver);
+      MOZ_ASSERT(aIMEContentObserver);
     }
 
-    RefPtr<IMEContentObserver> mIMEContentObserver;
+    already_AddRefed<IMEContentObserver> GetObserver() const
+    {
+      nsCOMPtr<nsISelectionListener> observer =
+        do_QueryReferent(mIMEContentObserver);
+      return observer.forget().downcast<IMEContentObserver>();
+    }
+
+    nsWeakPtr mIMEContentObserver;
 
     /**
      * CanNotifyIME() checks if mIMEContentObserver can and should notify IME.
@@ -359,6 +370,7 @@ private:
     }
     NS_IMETHOD Run() override;
 
+    void Dispatch(nsIDocShell* aDocShell);
   private:
     void SendFocusSet();
     void SendSelectionChange();

dom/events/UIEvent.cpp

@@ -244,8 +244,12 @@ UIEvent::GetRangeParent()
   nsIFrame* targetFrame = nullptr;
 
   if (mPresContext) {
+    nsCOMPtr<nsIPresShell> shell = mPresContext->GetPresShell();
+    if (shell) {
+      shell->FlushPendingNotifications(FlushType::Layout);
       targetFrame = mPresContext->EventStateManager()->GetEventTarget();
     }
+  }
 
   if (targetFrame) {
     nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(mEvent,
@@ -290,6 +294,13 @@ UIEvent::RangeOffset() const
     return 0;
   }
 
+  nsCOMPtr<nsIPresShell> shell = mPresContext->GetPresShell();
+  if (!shell) {
+    return 0;
+  }
+
+  shell->FlushPendingNotifications(FlushType::Layout);
+
   nsIFrame* targetFrame = mPresContext->EventStateManager()->GetEventTarget();
   if (!targetFrame) {
     return 0;

dom/html/HTMLFormElement.cpp

@@ -1434,29 +1434,26 @@ HTMLFormElement::RemoveElementFromTableInternal(
   nsInterfaceHashtable<nsStringHashKey,nsISupports>& aTable,
   nsIContent* aChild, const nsAString& aName)
 {
-  nsCOMPtr<nsISupports> supports;
-
-  if (!aTable.Get(aName, getter_AddRefs(supports)))
+  auto entry = aTable.Lookup(aName);
+  if (!entry) {
     return NS_OK;
-
+  }
   // Single element in the hash, just remove it if it's the one
   // we're trying to remove...
-  if (supports == aChild) {
-    aTable.Remove(aName);
+  if (entry.Data() == aChild) {
+    entry.Remove();
     ++mExpandoAndGeneration.generation;
     return NS_OK;
   }
 
-  nsCOMPtr<nsIContent> content(do_QueryInterface(supports));
+  nsCOMPtr<nsIContent> content(do_QueryInterface(entry.Data()));
   if (content) {
     return NS_OK;
   }
 
-  nsCOMPtr<nsIDOMNodeList> nodeList(do_QueryInterface(supports));
-  NS_ENSURE_TRUE(nodeList, NS_ERROR_FAILURE);
-
-  // Upcast, uggly, but it works!
-  nsBaseContentList *list = static_cast<nsBaseContentList*>(nodeList.get());
+  // If it's not a content node then it must be a RadioNodeList.
+  MOZ_ASSERT(nsCOMPtr<RadioNodeList>(do_QueryInterface(entry.Data())));
+  auto* list = static_cast<RadioNodeList*>(entry.Data().get());
 
   list->RemoveElement(aChild);
 
@@ -1466,14 +1463,14 @@ HTMLFormElement::RemoveElementFromTableInternal(
   if (!length) {
     // If the list is empty we remove if from our hash, this shouldn't
     // happen tho
-    aTable.Remove(aName);
+    entry.Remove();
     ++mExpandoAndGeneration.generation;
   } else if (length == 1) {
     // Only one element left, replace the list in the hash with the
     // single element.
     nsIContent* node = list->Item(0);
     if (node) {
-      aTable.Put(aName, node);
+      entry.Data() = node;
     }
   }
 
@@ -2291,8 +2288,12 @@ HTMLFormElement::AddToRadioGroup(const nsAString& aName,
   NS_ASSERTION(element, "radio controls have to be content elements!");
 
   if (element->HasAttr(kNameSpaceID_None, nsGkAtoms::required)) {
-    mRequiredRadioButtonCounts.Put(aName,
-                                   mRequiredRadioButtonCounts.Get(aName)+1);
+    auto entry = mRequiredRadioButtonCounts.LookupForAdd(aName);
+    if (!entry) {
+      entry.OrInsert([]() { return 1; });
+    } else {
+      ++entry.Data();
+    }
   }
 }
 
@@ -2304,14 +2305,17 @@ HTMLFormElement::RemoveFromRadioGroup(const nsAString& aName,
   NS_ASSERTION(element, "radio controls have to be content elements!");
 
   if (element->HasAttr(kNameSpaceID_None, nsGkAtoms::required)) {
-    uint32_t requiredNb = mRequiredRadioButtonCounts.Get(aName);
-    NS_ASSERTION(requiredNb >= 1,
-                 "At least one radio button has to be required!");
-
-    if (requiredNb == 1) {
-      mRequiredRadioButtonCounts.Remove(aName);
+    auto entry = mRequiredRadioButtonCounts.Lookup(aName);
+    if (!entry) {
+      MOZ_ASSERT_UNREACHABLE("At least one radio button has to be required!");
     } else {
-      mRequiredRadioButtonCounts.Put(aName, requiredNb-1);
+      MOZ_ASSERT(entry.Data() >= 1,
+                 "At least one radio button has to be required!");
+      if (entry.Data() <= 1) {
+        entry.Remove();
+      } else {
+        --entry.Data();
+      }
     }
   }
 }
@@ -2396,10 +2400,10 @@ struct PositionComparator
   }
 };
 
-struct NodeListAdaptor
+struct RadioNodeListAdaptor
 {
-  nsINodeList* const mList;
-  explicit NodeListAdaptor(nsINodeList* aList) : mList(aList) {}
+  RadioNodeList* const mList;
+  explicit RadioNodeListAdaptor(RadioNodeList* aList) : mList(aList) {}
   nsIContent* operator[](size_t aIdx) const {
     return mList->Item(aIdx);
   }
@@ -2412,16 +2416,14 @@ HTMLFormElement::AddElementToTableInternal(
   nsInterfaceHashtable<nsStringHashKey,nsISupports>& aTable,
   nsIContent* aChild, const nsAString& aName)
 {
-  nsCOMPtr<nsISupports> supports;
-  aTable.Get(aName, getter_AddRefs(supports));
-
-  if (!supports) {
+  auto entry = aTable.LookupForAdd(aName);
+  if (!entry) {
     // No entry found, add the element
-    aTable.Put(aName, aChild);
+    entry.OrInsert([&aChild]() { return aChild; });
     ++mExpandoAndGeneration.generation;
   } else {
     // Found something in the hash, check its type
-    nsCOMPtr<nsIContent> content = do_QueryInterface(supports);
+    nsCOMPtr<nsIContent> content = do_QueryInterface(entry.Data());
 
     if (content) {
       // Check if the new content is the same as the one we found in the
@@ -2451,15 +2453,11 @@ HTMLFormElement::AddElementToTableInternal(
       nsCOMPtr<nsISupports> listSupports = do_QueryObject(list);
 
       // Replace the element with the list.
-      aTable.Put(aName, listSupports);
+      entry.Data() = listSupports;
     } else {
-      // There's already a list in the hash, add the child to the list
-      nsCOMPtr<nsIDOMNodeList> nodeList = do_QueryInterface(supports);
-      NS_ENSURE_TRUE(nodeList, NS_ERROR_FAILURE);
-
-      // Upcast, uggly, but it works!
-      RadioNodeList *list =
-        static_cast<RadioNodeList*>(nodeList.get());
+      // There's already a list in the hash, add the child to the list.
+      MOZ_ASSERT(nsCOMPtr<RadioNodeList>(do_QueryInterface(entry.Data())));
+      auto* list = static_cast<RadioNodeList*>(entry.Data().get());
 
       NS_ASSERTION(list->Length() > 1,
                    "List should have been converted back to a single element");
@@ -2480,7 +2478,7 @@ HTMLFormElement::AddElementToTableInternal(
       }
 
       size_t idx;
-      DebugOnly<bool> found = BinarySearchIf(NodeListAdaptor(list), 0, list->Length(),
+      DebugOnly<bool> found = BinarySearchIf(RadioNodeListAdaptor(list), 0, list->Length(),
                                              PositionComparator(aChild), &idx);
       MOZ_ASSERT(!found, "should not have found an element");
 

dom/html/HTMLInputElement.cpp

@@ -3109,7 +3109,7 @@ HTMLInputElement::SetValueInternal(const nsAString& aValue,
                    !(aFlags & nsTextEditorState::eSetValue_BySetUserInput)) {
           nsDateTimeControlFrame* frame = do_QueryFrame(GetPrimaryFrame());
           if (frame) {
-            frame->UpdateInputBoxValue();
+            frame->OnValueChanged();
           }
         }
         if (mDoneCreating) {

dom/html/HTMLInputElement.h

@@ -846,6 +846,13 @@ public:
    */
   void UpdateValidityState();
 
+  /*
+   * The following are called from datetime input box binding to get the
+   * corresponding computed values.
+   */
+  double GetStepAsDouble() { return GetStep().toDouble(); }
+  double GetStepBaseAsDouble() { return GetStepBase().toDouble(); }
+
   HTMLInputElement* GetOwnerNumberControl();
 
   void StartNumberControlSpinnerSpin();

dom/html/HTMLMediaElement.cpp

@@ -3399,24 +3399,34 @@ HTMLMediaElement::AddCaptureMediaTrackToOutputStream(MediaTrack* aTrack,
        track.get(), destinationTrackID, inputTrack, port.get()));
 }
 
+bool
+HTMLMediaElement::CanBeCaptured(bool aCaptureAudio)
+{
+  // Don't bother capturing when the document has gone away
+  nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
+  if (!window) {
+    return false;
+  }
+
+  // Prevent capturing restricted video
+  if (!aCaptureAudio && ContainsRestrictedContent()) {
+    return false;
+  }
+  return true;
+}
+
 already_AddRefed<DOMMediaStream>
 HTMLMediaElement::CaptureStreamInternal(bool aFinishWhenEnded,
                                         bool aCaptureAudio,
                                         MediaStreamGraph* aGraph)
 {
   MOZ_RELEASE_ASSERT(aGraph);
+  MOZ_ASSERT(CanBeCaptured(aCaptureAudio));
 
   MarkAsContentSource(CallerAPI::CAPTURE_STREAM);
   MarkAsTainted();
 
-  nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
-  if (!window) {
-    return nullptr;
-  }
-  if (!aCaptureAudio && ContainsRestrictedContent()) {
-    return nullptr;
-  }
-
+  // We don't support routing to a different graph.
   if (!mOutputStreams.IsEmpty() &&
       aGraph != mOutputStreams[0].mStream->GetInputStream()->Graph()) {
     return nullptr;
@@ -3424,6 +3434,7 @@ HTMLMediaElement::CaptureStreamInternal(bool aFinishWhenEnded,
 
   OutputMediaStream* out = mOutputStreams.AppendElement();
   MediaStreamTrackSourceGetter* getter = new CaptureStreamTrackSourceGetter(this);
+  nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
   out->mStream = DOMMediaStream::CreateTrackUnionStreamAsInput(window, aGraph, getter);
   out->mStream->SetInactiveOnFinish();
   out->mFinishWhenEnded = aFinishWhenEnded;
@@ -3530,8 +3541,21 @@ HTMLMediaElement::MozCaptureStream(ErrorResult& aRv)
   MediaStreamGraph::GraphDriverType graphDriverType =
     HasAudio() ? MediaStreamGraph::AUDIO_THREAD_DRIVER
                : MediaStreamGraph::SYSTEM_THREAD_DRIVER;
+
+
+  nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
+  if (!window) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return nullptr;
+  }
+
+  if (!CanBeCaptured(false)) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return nullptr;
+  }
+
   MediaStreamGraph* graph =
-    MediaStreamGraph::GetInstance(graphDriverType, mAudioChannel);
+    MediaStreamGraph::GetInstance(graphDriverType, mAudioChannel, window);
 
   RefPtr<DOMMediaStream> stream =
     CaptureStreamInternal(false, false, graph);
@@ -3549,8 +3573,20 @@ HTMLMediaElement::MozCaptureStreamUntilEnded(ErrorResult& aRv)
   MediaStreamGraph::GraphDriverType graphDriverType =
     HasAudio() ? MediaStreamGraph::AUDIO_THREAD_DRIVER
                : MediaStreamGraph::SYSTEM_THREAD_DRIVER;
+
+  nsPIDOMWindowInner* window = OwnerDoc()->GetInnerWindow();
+  if (!window) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return nullptr;
+  }
+
+  if (!CanBeCaptured(false)) {
+    aRv.Throw(NS_ERROR_FAILURE);
+    return nullptr;
+  }
+
   MediaStreamGraph* graph =
-    MediaStreamGraph::GetInstance(graphDriverType, mAudioChannel);
+    MediaStreamGraph::GetInstance(graphDriverType, mAudioChannel, window);
 
   RefPtr<DOMMediaStream> stream =
     CaptureStreamInternal(true, false, graph);
@@ -4833,8 +4869,7 @@ public:
     mBlocked(false),
     mFinished(false),
     mMutex(aName),
-    mPendingNotifyOutput(false),
-    mAbstractMainThread(aElement->AbstractMainThread())
+    mPendingNotifyOutput(false)
   {}
   void Forget()
   {
@@ -4902,14 +4937,12 @@ public:
         this,
         &StreamListener::DoNotifyUnblocked);
     }
-    aGraph->DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
-                                                       event.forget());
+    aGraph->DispatchToMainThreadAfterStreamStateUpdate(event.forget());
   }
   virtual void NotifyHasCurrentData(MediaStreamGraph* aGraph) override
   {
     MutexAutoLock lock(mMutex);
     aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-      mAbstractMainThread,
       NewRunnableMethod(
         "dom::HTMLMediaElement::StreamListener::DoNotifyHaveCurrentData",
         this,
@@ -4923,7 +4956,6 @@ public:
       return;
     mPendingNotifyOutput = true;
     aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-      mAbstractMainThread,
       NewRunnableMethod("dom::HTMLMediaElement::StreamListener::DoNotifyOutput",
                         this,
                         &StreamListener::DoNotifyOutput));
@@ -4939,7 +4971,6 @@ private:
   // mMutex protects the fields below; they can be accessed on any thread
   Mutex mMutex;
   bool mPendingNotifyOutput;
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 class HTMLMediaElement::MediaStreamTracksAvailableCallback:
@@ -7176,7 +7207,7 @@ HTMLMediaElement::AudioCaptureStreamChange(bool aCapture)
     uint64_t id = window->WindowID();
     MediaStreamGraph* msg =
       MediaStreamGraph::GetInstance(MediaStreamGraph::AUDIO_THREAD_DRIVER,
-                                    mAudioChannel);
+                                    mAudioChannel, window);
 
     if (GetSrcMediaStream()) {
       mCaptureStreamPort = msg->ConnectToCaptureStream(id, GetSrcMediaStream());

dom/html/HTMLMediaElement.h

@@ -1266,6 +1266,9 @@ protected:
   // Anything we need to check after played success and not related with spec.
   void UpdateCustomPolicyAfterPlayed();
 
+  // True if this element can be captured, false otherwise.
+  bool CanBeCaptured(bool aCaptureAudio);
+
   class nsAsyncEventRunner;
   class nsNotifyAboutPlayingRunner;
   class nsResolveOrRejectPendingPlayPromisesRunner;

dom/html/RadioNodeList.h

@@ -19,7 +19,7 @@
 namespace mozilla {
 namespace dom {
 
-class RadioNodeList : public nsSimpleContentList
+class RadioNodeList final : public nsSimpleContentList
 {
 public:
   explicit RadioNodeList(HTMLFormElement* aForm) : nsSimpleContentList(aForm) { }

dom/html/input/DateTimeInputTypes.cpp

@@ -102,6 +102,17 @@ DateTimeInputTypeBase::HasBadInput() const
   return frame->HasBadInput();;
 }
 
+nsresult
+DateTimeInputTypeBase::MinMaxStepAttrChanged()
+{
+  nsDateTimeControlFrame* frame = do_QueryFrame(GetPrimaryFrame());
+  if (frame) {
+    frame->OnMinMaxStepAttrChanged();
+  }
+
+  return NS_OK;
+}
+
 bool
 DateTimeInputTypeBase::GetTimeFromMs(double aValue, uint16_t* aHours,
                                      uint16_t* aMinutes, uint16_t* aSeconds,

dom/html/input/DateTimeInputTypes.h

@@ -20,6 +20,8 @@ public:
   bool HasStepMismatch(bool aUseZeroIfValueNaN) const override;
   bool HasBadInput() const override;
 
+  nsresult MinMaxStepAttrChanged() override;
+
 protected:
   explicit DateTimeInputTypeBase(mozilla::dom::HTMLInputElement* aInputElement)
     : InputType(aInputElement)

dom/html/nsIDateTimeInputArea.idl

@@ -14,6 +14,12 @@ interface nsIDateTimeInputArea : nsISupports
    */
   void notifyInputElementValueChanged();
 
+  /**
+   * Called from DOM/Layout when input element min, max or step attribute has
+   * changed.
+   */
+  void notifyMinMaxStepAttrChanged();
+
   /**
    * Called when date/time picker value has changed.
    */

dom/html/test/forms/mochitest.ini

@@ -74,6 +74,8 @@ skip-if = os == "android"
 [test_input_textarea_set_value_no_scroll.html]
 [test_input_time_key_events.html]
 skip-if = os == "android"
+[test_input_time_sec_millisec_field.html]
+skip-if = os == "android"
 [test_input_types_pref.html]
 [test_input_typing_sanitization.html]
 [test_input_untrusted_key_events.html]

dom/html/test/forms/test_input_time_sec_millisec_field.html

@@ -0,0 +1,134 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1374967
+-->
+<head>
+  <title>Test second and millisecond fields in input type=time</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <meta charset="UTF-8">
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1374967">Mozilla Bug 1374967</a>
+<p id="display"></p>
+<div id="content">
+  <input id="input1" type="time">
+  <input id="input2" type="time" value="12:30:40">
+  <input id="input3" type="time" value="12:30:40.567">
+  <input id="input4" type="time" step="1">
+  <input id="input5" type="time" step="61">
+  <input id="input6" type="time" step="120">
+  <input id="input7" type="time" step="0.01">
+  <input id="input8" type="time" step="0.001">
+  <input id="input9" type="time" step="1.001">
+  <input id="input10" type="time" min="01:30:05">
+  <input id="input11" type="time" min="01:30:05.100">
+  <input id="dummy">
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+SimpleTest.waitForExplicitFinish();
+SimpleTest.waitForFocus(function() {
+  test();
+  SimpleTest.finish();
+});
+
+const NUM_OF_FIELDS_DEFAULT = 3;
+const NUM_OF_FIELDS_WITH_SECOND = NUM_OF_FIELDS_DEFAULT + 1;
+const NUM_OF_FIELDS_WITH_MILLISEC = NUM_OF_FIELDS_WITH_SECOND + 1;
+
+function countNumberOfFields(aElement) {
+  is(aElement.type, "time", "Input element type should be 'time'");
+
+  let inputRect = aElement.getBoundingClientRect();
+  let firstField_X = 15;
+  let firstField_Y = inputRect.height / 2;
+
+  // Make sure to start on the first field.
+  synthesizeMouse(aElement, firstField_X, firstField_Y, {});
+  is(document.activeElement, aElement, "Input element should be focused");
+
+  let n = 0;
+  while (document.activeElement == aElement) {
+    n++;
+    synthesizeKey("VK_TAB", {});
+  }
+
+  return n;
+}
+
+function test() {
+  // Normal input time element.
+  let elem = document.getElementById("input1");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_DEFAULT, "Default input time");
+
+  // Dynamically changing the value with second part.
+  elem.value = "10:20:30";
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_SECOND,
+     "Input time after changing value with second part");
+
+  // Dynamically changing the step to 1 millisecond.
+  elem.step = "0.001";
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_MILLISEC,
+     "Input time after changing step to 1 millisecond");
+
+  // Input time with value with second part.
+  elem = document.getElementById("input2");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_SECOND,
+     "Input time with value with second part");
+
+  // Input time with value with second and millisecond part.
+  elem = document.getElementById("input3");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_MILLISEC,
+     "Input time with value with second and millisecond part");
+
+  // Input time with step set as 1 second.
+  elem = document.getElementById("input4");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_SECOND,
+     "Input time with step set as 1 second");
+
+  // Input time with step set as 61 seconds.
+  elem = document.getElementById("input5");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_SECOND,
+     "Input time with step set as 61 seconds");
+
+  // Input time with step set as 2 minutes.
+  elem = document.getElementById("input6");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_DEFAULT,
+     "Input time with step set as 2 minutes");
+
+  // Input time with step set as 10 milliseconds.
+  elem = document.getElementById("input7");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_MILLISEC,
+     "Input time with step set as 10 milliseconds");
+
+  // Input time with step set as 100 milliseconds.
+  elem = document.getElementById("input8");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_MILLISEC,
+     "Input time with step set as 100 milliseconds");
+
+  // Input time with step set as 1001 milliseconds.
+  elem = document.getElementById("input9");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_MILLISEC,
+     "Input time with step set as 1001 milliseconds");
+
+  // Input time with min with second part and default step (60 seconds). Note
+  // that step base is min, when there is a min.
+  elem = document.getElementById("input10");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_SECOND,
+     "Input time with min with second part");
+
+  // Input time with min with second and millisecond part and default step (60
+  // seconds). Note that step base is min, when there is a min.
+  elem = document.getElementById("input11");
+  is(countNumberOfFields(elem), NUM_OF_FIELDS_WITH_MILLISEC,
+     "Input time with min with second and millisecond part");
+}
+
+</script>
+</pre>
+</body>
+</html>

dom/ipc/TabChild.cpp

@@ -3061,11 +3061,9 @@ TabChild::ReinitRenderingForDeviceReset()
   InvalidateLayers();
 
   RefPtr<LayerManager> lm = mPuppetWidget->GetLayerManager();
-  ClientLayerManager* clm = lm->AsClientLayerManager();
-  if (!clm) {
-    return;
-  }
-
+  if (WebRenderLayerManager* wlm = lm->AsWebRenderLayerManager()) {
+    wlm->DoDestroy(/* aIsSync */ true);
+  } else if (ClientLayerManager* clm = lm->AsClientLayerManager()) {
     if (ShadowLayerForwarder* fwd = clm->AsShadowForwarder()) {
       // Force the LayerTransactionChild to synchronously shutdown. It is
       // okay to do this early, we'll simply stop sending messages. This
@@ -3073,6 +3071,9 @@ TabChild::ReinitRenderingForDeviceReset()
       // are trying to attach two layer trees to the same ID.
       fwd->SynchronouslyShutdown();
     }
+  } else {
+    return;
+  }
 
   // Proceed with destroying and recreating the layer manager.
   ReinitRendering();

dom/media/AudioCaptureStream.cpp

@@ -30,8 +30,11 @@ namespace mozilla
 // We are mixing to mono until PeerConnection can accept stereo
 static const uint32_t MONO = 1;
 
-AudioCaptureStream::AudioCaptureStream(TrackID aTrackId, AbstractThread* aMainThread)
-  : ProcessedMediaStream(aMainThread), mTrackId(aTrackId), mStarted(false), mTrackCreated(false)
+AudioCaptureStream::AudioCaptureStream(TrackID aTrackId)
+  : ProcessedMediaStream()
+  , mTrackId(aTrackId)
+  , mStarted(false)
+  , mTrackCreated(false)
 {
   MOZ_ASSERT(NS_IsMainThread());
   MOZ_COUNT_CTOR(AudioCaptureStream);

dom/media/AudioCaptureStream.h

@@ -24,7 +24,7 @@ class AudioCaptureStream : public ProcessedMediaStream,
                            public MixerCallbackReceiver
 {
 public:
-  AudioCaptureStream(TrackID aTrackId, AbstractThread* aMainThread);
+  explicit AudioCaptureStream(TrackID aTrackId);
   virtual ~AudioCaptureStream();
 
   void Start();

dom/media/CanvasCaptureMediaStream.cpp

@@ -280,7 +280,8 @@ CanvasCaptureMediaStream::CreateSourceStream(nsPIDOMWindowInner* aWindow,
   RefPtr<CanvasCaptureMediaStream> stream = new CanvasCaptureMediaStream(aWindow, aCanvas);
   MediaStreamGraph* graph =
     MediaStreamGraph::GetInstance(MediaStreamGraph::SYSTEM_THREAD_DRIVER,
-                                  AudioChannel::Normal);
+                                  AudioChannel::Normal,
+                                  aWindow);
   stream->InitSourceStream(graph);
   return stream.forget();
 }

dom/media/DOMMediaStream.cpp

@@ -143,7 +143,6 @@ class DOMMediaStream::OwnedStreamListener : public MediaStreamListener {
 public:
   explicit OwnedStreamListener(DOMMediaStream* aStream)
     : mStream(aStream)
-    , mAbstractMainThread(aStream->mAbstractMainThread)
   {}
 
   void Forget() { mStream = nullptr; }
@@ -224,7 +223,6 @@ public:
   {
     if (aTrackEvents & TrackEventCommand::TRACK_EVENT_CREATED) {
       aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-        mAbstractMainThread,
         NewRunnableMethod<TrackID,
                           MediaSegment::Type,
                           RefPtr<MediaStream>,
@@ -238,7 +236,6 @@ public:
           aInputTrackID));
     } else if (aTrackEvents & TrackEventCommand::TRACK_EVENT_ENDED) {
       aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-        mAbstractMainThread,
         NewRunnableMethod<RefPtr<MediaStream>, TrackID, TrackID>(
           "DOMMediaStream::OwnedStreamListener::DoNotifyTrackEnded",
           this,
@@ -252,8 +249,6 @@ public:
 private:
   // These fields may only be accessed on the main thread
   DOMMediaStream* mStream;
-
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 /**
@@ -265,7 +260,6 @@ class DOMMediaStream::PlaybackStreamListener : public MediaStreamListener {
 public:
   explicit PlaybackStreamListener(DOMMediaStream* aStream)
     : mStream(aStream)
-    , mAbstractMainThread(aStream->mAbstractMainThread)
   {}
 
   void Forget()
@@ -309,7 +303,6 @@ public:
   void NotifyFinishedTrackCreation(MediaStreamGraph* aGraph) override
   {
     aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-      mAbstractMainThread,
       NewRunnableMethod(
         "DOMMediaStream::PlaybackStreamListener::DoNotifyFinishedTrackCreation",
         this,
@@ -322,7 +315,6 @@ public:
   {
     if (event == MediaStreamGraphEvent::EVENT_FINISHED) {
       aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-        mAbstractMainThread,
         NewRunnableMethod(
           "DOMMediaStream::PlaybackStreamListener::DoNotifyFinished",
           this,
@@ -333,8 +325,6 @@ public:
 private:
   // These fields may only be accessed on the main thread
   DOMMediaStream* mStream;
-
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 class DOMMediaStream::PlaybackTrackListener : public MediaStreamTrackConsumer
@@ -436,8 +426,7 @@ DOMMediaStream::DOMMediaStream(nsPIDOMWindowInner* aWindow,
     mTracksPendingRemoval(0), mTrackSourceGetter(aTrackSourceGetter),
     mPlaybackTrackListener(MakeAndAddRef<PlaybackTrackListener>(this)),
     mTracksCreated(false), mNotifiedOfMediaStreamGraphShutdown(false),
-    mActive(false), mSetInactiveOnFinish(false),
-    mAbstractMainThread(aWindow ? aWindow->GetDocGroup()->AbstractMainThreadFor(TaskCategory::Other) : nullptr)
+    mActive(false), mSetInactiveOnFinish(false)
 {
   nsresult rv;
   nsCOMPtr<nsIUUIDGenerator> uuidgen =
@@ -570,7 +559,7 @@ DOMMediaStream::Constructor(const GlobalObject& aGlobal,
     MOZ_ASSERT(aTracks.IsEmpty());
     MediaStreamGraph* graph =
       MediaStreamGraph::GetInstance(MediaStreamGraph::SYSTEM_THREAD_DRIVER,
-                                    AudioChannel::Normal);
+                                    AudioChannel::Normal, ownerWindow);
     newStream->InitPlaybackStreamCommon(graph);
   }
 
@@ -881,8 +870,7 @@ DOMMediaStream::SetInactiveOnFinish()
 void
 DOMMediaStream::InitSourceStream(MediaStreamGraph* aGraph)
 {
-  MOZ_ASSERT(mAbstractMainThread);
-  InitInputStreamCommon(aGraph->CreateSourceStream(mAbstractMainThread), aGraph);
+  InitInputStreamCommon(aGraph->CreateSourceStream(), aGraph);
   InitOwnedStreamCommon(aGraph);
   InitPlaybackStreamCommon(aGraph);
 }
@@ -890,8 +878,7 @@ DOMMediaStream::InitSourceStream(MediaStreamGraph* aGraph)
 void
 DOMMediaStream::InitTrackUnionStream(MediaStreamGraph* aGraph)
 {
-  MOZ_ASSERT(mAbstractMainThread);
-  InitInputStreamCommon(aGraph->CreateTrackUnionStream(mAbstractMainThread), aGraph);
+  InitInputStreamCommon(aGraph->CreateTrackUnionStream(), aGraph);
   InitOwnedStreamCommon(aGraph);
   InitPlaybackStreamCommon(aGraph);
 }
@@ -899,14 +886,13 @@ DOMMediaStream::InitTrackUnionStream(MediaStreamGraph* aGraph)
 void
 DOMMediaStream::InitAudioCaptureStream(nsIPrincipal* aPrincipal, MediaStreamGraph* aGraph)
 {
-  MOZ_ASSERT(mAbstractMainThread);
   const TrackID AUDIO_TRACK = 1;
 
   RefPtr<BasicTrackSource> audioCaptureSource =
     new BasicTrackSource(aPrincipal, MediaSourceEnum::AudioCapture);
 
   AudioCaptureStream* audioCaptureStream =
-    static_cast<AudioCaptureStream*>(aGraph->CreateAudioCaptureStream(AUDIO_TRACK, mAbstractMainThread));
+    static_cast<AudioCaptureStream*>(aGraph->CreateAudioCaptureStream(AUDIO_TRACK));
   InitInputStreamCommon(audioCaptureStream, aGraph);
   InitOwnedStreamCommon(aGraph);
   InitPlaybackStreamCommon(aGraph);
@@ -930,10 +916,9 @@ DOMMediaStream::InitInputStreamCommon(MediaStream* aStream,
 void
 DOMMediaStream::InitOwnedStreamCommon(MediaStreamGraph* aGraph)
 {
-  MOZ_ASSERT(mAbstractMainThread);
   MOZ_ASSERT(!mPlaybackStream, "Owned stream must be initialized before playback stream");
 
-  mOwnedStream = aGraph->CreateTrackUnionStream(mAbstractMainThread);
+  mOwnedStream = aGraph->CreateTrackUnionStream();
   mOwnedStream->SetAutofinish(true);
   mOwnedStream->RegisterUser();
   if (mInputStream) {
@@ -948,8 +933,7 @@ DOMMediaStream::InitOwnedStreamCommon(MediaStreamGraph* aGraph)
 void
 DOMMediaStream::InitPlaybackStreamCommon(MediaStreamGraph* aGraph)
 {
-  MOZ_ASSERT(mAbstractMainThread);
-  mPlaybackStream = aGraph->CreateTrackUnionStream(mAbstractMainThread);
+  mPlaybackStream = aGraph->CreateTrackUnionStream();
   mPlaybackStream->SetAutofinish(true);
   mPlaybackStream->RegisterUser();
   if (mOwnedStream) {
@@ -1576,7 +1560,7 @@ DOMHwMediaStream::CreateHwStream(nsPIDOMWindowInner* aWindow,
 
   MediaStreamGraph* graph =
     MediaStreamGraph::GetInstance(MediaStreamGraph::SYSTEM_THREAD_DRIVER,
-                                  AudioChannel::Normal);
+                                  AudioChannel::Normal, aWindow);
   stream->InitSourceStream(graph);
   stream->Init(stream->GetInputStream(), aImage);
 

dom/media/DOMMediaStream.h

@@ -590,8 +590,6 @@ public:
   // a dead pointer. Main thread only.
   void UnregisterTrackListener(TrackListener* aListener);
 
-  AbstractThread* AbstractMainThread() const { return mAbstractMainThread; }
-
 protected:
   virtual ~DOMMediaStream();
 
@@ -756,7 +754,6 @@ private:
   nsCOMPtr<nsIPrincipal> mVideoPrincipal;
   nsTArray<dom::PrincipalChangeObserver<DOMMediaStream>*> mPrincipalChangeObservers;
   CORSMode mCORSMode;
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 NS_DEFINE_STATIC_IID_ACCESSOR(DOMMediaStream,

dom/media/GraphDriver.cpp

@@ -1157,8 +1157,6 @@ AudioCallbackDriver::DeviceChangedCallback() {
 void
 AudioCallbackDriver::SetMicrophoneActive(bool aActive)
 {
-  MonitorAutoLock mon(mGraphImpl->GetMonitor());
-
   mMicrophoneActive = aActive;
 
 #ifdef XP_MACOSX

dom/media/GraphDriver.h

@@ -536,7 +536,7 @@ private:
   /**
    * True if microphone is being used by this process. This is synchronized by
    * the graph's monitor. */
-  bool mMicrophoneActive;
+  Atomic<bool> mMicrophoneActive;
   /* True if this driver was created from a driver created because of a previous
    * AudioCallbackDriver failure. */
   bool mFromFallback;

dom/media/MediaManager.cpp

@@ -1068,7 +1068,7 @@ public:
                    : MediaStreamGraph::SYSTEM_THREAD_DRIVER;
     MediaStreamGraph* msg =
       MediaStreamGraph::GetInstance(graphDriverType,
-                                    dom::AudioChannel::Normal);
+                                    dom::AudioChannel::Normal, window);
 
     RefPtr<DOMMediaStream> domStream;
     RefPtr<SourceMediaStream> stream;
@@ -1084,8 +1084,7 @@ public:
       domStream =
         DOMMediaStream::CreateAudioCaptureStreamAsInput(window, principal, msg);
 
-      stream = msg->CreateSourceStream(
-        globalWindow->AbstractMainThreadFor(TaskCategory::Other)); // Placeholder
+      stream = msg->CreateSourceStream(); // Placeholder
       msg->RegisterCaptureStreamForWindow(
             mWindowID, domStream->GetInputStream()->AsProcessedStream());
       window->SetAudioCapture(true);
@@ -3669,7 +3668,7 @@ SourceListener::StopSharing()
     window->SetAudioCapture(false);
     MediaStreamGraph* graph =
       MediaStreamGraph::GetInstance(MediaStreamGraph::AUDIO_THREAD_DRIVER,
-                                    dom::AudioChannel::Normal);
+                                    dom::AudioChannel::Normal, window);
     graph->UnregisterCaptureStreamForWindow(windowID);
     mStream->Destroy();
   }

dom/media/MediaRecorder.cpp

@@ -433,7 +433,6 @@ public:
     , mIsStartEventFired(false)
     , mNeedSessionEndTask(true)
     , mSelectedVideoTrackID(TRACK_NONE)
-    , mAbstractMainThread(aRecorder->mAbstractMainThread)
   {
     MOZ_ASSERT(NS_IsMainThread());
 
@@ -489,7 +488,7 @@ public:
     // Create a Track Union Stream
     MediaStreamGraph* gm = mRecorder->GetSourceMediaStream()->Graph();
     TrackRate trackRate = gm->GraphRate();
-    mTrackUnionStream = gm->CreateTrackUnionStream(mAbstractMainThread);
+    mTrackUnionStream = gm->CreateTrackUnionStream();
     MOZ_ASSERT(mTrackUnionStream, "CreateTrackUnionStream failed");
 
     mTrackUnionStream->SetAutofinish(true);
@@ -952,7 +951,6 @@ private:
   // Main thread only.
   bool mNeedSessionEndTask;
   TrackID mSelectedVideoTrackID;
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 NS_IMPL_ISUPPORTS(MediaRecorder::Session, nsIObserver)
@@ -971,7 +969,6 @@ MediaRecorder::MediaRecorder(DOMMediaStream& aSourceMediaStream,
                              nsPIDOMWindowInner* aOwnerWindow)
   : DOMEventTargetHelper(aOwnerWindow)
   , mState(RecordingState::Inactive)
-  , mAbstractMainThread(aSourceMediaStream.AbstractMainThread())
 {
   MOZ_ASSERT(aOwnerWindow);
   MOZ_ASSERT(aOwnerWindow->IsInnerWindow());
@@ -985,7 +982,6 @@ MediaRecorder::MediaRecorder(AudioNode& aSrcAudioNode,
                              nsPIDOMWindowInner* aOwnerWindow)
   : DOMEventTargetHelper(aOwnerWindow)
   , mState(RecordingState::Inactive)
-  , mAbstractMainThread(aSrcAudioNode.AbstractMainThread())
 {
   MOZ_ASSERT(aOwnerWindow);
   MOZ_ASSERT(aOwnerWindow->IsInnerWindow());

dom/media/MediaRecorder.h

@@ -159,7 +159,6 @@ protected:
   uint32_t mVideoBitsPerSecond;
   uint32_t mBitsPerSecond;
 
-  const RefPtr<AbstractThread> mAbstractMainThread;
 private:
   // Register MediaRecorder into Document to listen the activity changes.
   void RegisterActivityObserver();

dom/media/MediaStreamGraph.cpp

@@ -580,26 +580,6 @@ MediaStreamGraphImpl::UpdateStreamOrder()
     }
   }
 
-#ifdef MOZ_WEBRTC
-  // Whenever we change AEC state, notify the current driver, which also
-  // will sample the state when the driver inits
-  if (shouldAEC && !mFarendObserverRef && gFarendObserver) {
-    mFarendObserverRef = gFarendObserver;
-    mMixer.AddCallback(mFarendObserverRef);
-    if (CurrentDriver()->AsAudioCallbackDriver()) {
-      CurrentDriver()->AsAudioCallbackDriver()->SetMicrophoneActive(true);
-    }
-  } else if (!shouldAEC && mFarendObserverRef){
-    if (mMixer.FindCallback(mFarendObserverRef)) {
-      mMixer.RemoveCallback(mFarendObserverRef);
-      mFarendObserverRef = nullptr;
-      if (CurrentDriver()->AsAudioCallbackDriver()) {
-        CurrentDriver()->AsAudioCallbackDriver()->SetMicrophoneActive(false);
-      }
-    }
-  }
-#endif
-
   if (!mStreamOrderDirty) {
     return;
   }
@@ -1009,6 +989,7 @@ MediaStreamGraphImpl::OpenAudioInputImpl(int aID,
     MonitorAutoLock mon(mMonitor);
     if (mLifecycleState == LIFECYCLE_RUNNING) {
       AudioCallbackDriver* driver = new AudioCallbackDriver(this);
+      driver->SetMicrophoneActive(true);
       LOG(
         LogLevel::Debug,
         ("OpenAudioInput: starting new AudioCallbackDriver(input) %p", driver));
@@ -1031,9 +1012,12 @@ MediaStreamGraphImpl::OpenAudioInput(int aID,
 {
   // So, so, so annoying.  Can't AppendMessage except on Mainthread
   if (!NS_IsMainThread()) {
-    NS_DispatchToMainThread(WrapRunnable(this,
+    RefPtr<nsIRunnable> runnable =
+      WrapRunnable(this,
                    &MediaStreamGraphImpl::OpenAudioInput,
-                                         aID, RefPtr<AudioDataListener>(aListener)));
+                   aID,
+                   RefPtr<AudioDataListener>(aListener));
+    mAbstractMainThread->Dispatch(runnable.forget());
     return NS_OK;
   }
   class Message : public ControlMessage {
@@ -1101,9 +1085,11 @@ MediaStreamGraphImpl::CloseAudioInput(AudioDataListener *aListener)
 {
   // So, so, so annoying.  Can't AppendMessage except on Mainthread
   if (!NS_IsMainThread()) {
-    NS_DispatchToMainThread(WrapRunnable(this,
+    RefPtr<nsIRunnable> runnable =
+      WrapRunnable(this,
                    &MediaStreamGraphImpl::CloseAudioInput,
-                                         RefPtr<AudioDataListener>(aListener)));
+                   RefPtr<AudioDataListener>(aListener));
+    mAbstractMainThread->Dispatch(runnable.forget());
     return;
   }
   class Message : public ControlMessage {
@@ -1120,7 +1106,6 @@ MediaStreamGraphImpl::CloseAudioInput(AudioDataListener *aListener)
   this->AppendMessage(MakeUnique<Message>(this, aListener));
 }
 
-
 // All AudioInput listeners get the same speaker data (at least for now).
 void
 MediaStreamGraph::NotifyOutputData(AudioDataValue* aBuffer, size_t aFrames,
@@ -1723,13 +1708,16 @@ MediaStreamGraphImpl::RunInStableState(bool aSourceIsMSG)
         LOG(LogLevel::Debug,
             ("Sending MediaStreamGraphShutDownRunnable %p", this));
         nsCOMPtr<nsIRunnable> event = new MediaStreamGraphShutDownRunnable(this );
-        NS_DispatchToMainThread(event.forget());
+        mAbstractMainThread->Dispatch(event.forget());
 
         LOG(LogLevel::Debug, ("Disconnecting MediaStreamGraph %p", this));
-        MediaStreamGraphImpl* graph;
-        if (gGraphs.Get(uint32_t(mAudioChannel), &graph) && graph == this) {
-          // null out gGraph if that's the graph being shut down
-          gGraphs.Remove(uint32_t(mAudioChannel));
+
+        // Find the graph in the hash table and remove it.
+        for (auto iter = gGraphs.Iter(); !iter.Done(); iter.Next()) {
+          if (iter.UserData() == this) {
+            iter.Remove();
+            break;
+          }
         }
       }
     } else {
@@ -1803,7 +1791,7 @@ MediaStreamGraphImpl::RunInStableState(bool aSourceIsMSG)
       // we have outstanding DOM objects that may need it.
       mLifecycleState = LIFECYCLE_WAITING_FOR_THREAD_SHUTDOWN;
       nsCOMPtr<nsIRunnable> event = new MediaStreamGraphShutDownRunnable(this);
-      NS_DispatchToMainThread(event.forget());
+      mAbstractMainThread->Dispatch(event.forget());
     }
 
     mDetectedNotRunning = mLifecycleState > LIFECYCLE_RUNNING;
@@ -1851,7 +1839,7 @@ MediaStreamGraphImpl::EnsureStableStateEventPosted()
     return;
   mPostedRunInStableStateEvent = true;
   nsCOMPtr<nsIRunnable> event = new MediaStreamGraphStableStateRunnable(this, true);
-  NS_DispatchToMainThread(event.forget());
+  mAbstractMainThread->Dispatch(event.forget());
 }
 
 void
@@ -1881,9 +1869,12 @@ MediaStreamGraphImpl::AppendMessage(UniquePtr<ControlMessage> aMessage)
     if (IsEmpty() &&
         mLifecycleState >= LIFECYCLE_WAITING_FOR_STREAM_DESTRUCTION) {
 
-      MediaStreamGraphImpl* graph;
-      if (gGraphs.Get(uint32_t(mAudioChannel), &graph) && graph == this) {
-        gGraphs.Remove(uint32_t(mAudioChannel));
+      // Find the graph in the hash table and remove it.
+      for (auto iter = gGraphs.Iter(); !iter.Done(); iter.Next()) {
+        if (iter.UserData() == this) {
+          iter.Remove();
+          break;
+        }
       }
 
       Destroy();
@@ -1895,7 +1886,13 @@ MediaStreamGraphImpl::AppendMessage(UniquePtr<ControlMessage> aMessage)
   EnsureRunInStableState();
 }
 
-MediaStream::MediaStream(AbstractThread* aMainThread)
+void
+MediaStreamGraphImpl::Dispatch(already_AddRefed<nsIRunnable>&& aRunnable)
+{
+  mAbstractMainThread->Dispatch(Move(aRunnable));
+}
+
+MediaStream::MediaStream()
   : mTracksStartTime(0)
   , mStartBlocking(GRAPH_TIME_MAX)
   , mSuspendedCount(0)
@@ -1911,7 +1908,6 @@ MediaStream::MediaStream(AbstractThread* aMainThread)
   , mNrOfMainThreadUsers(0)
   , mGraph(nullptr)
   , mAudioChannelType(dom::AudioChannel::Normal)
-  , mAbstractMainThread(aMainThread)
 {
   MOZ_COUNT_CTOR(MediaStream);
 }
@@ -2559,17 +2555,13 @@ MediaStream::RunAfterPendingUpdates(already_AddRefed<nsIRunnable> aRunnable)
 
   class Message : public ControlMessage {
   public:
-    Message(MediaStream* aStream,
-            already_AddRefed<nsIRunnable> aRunnable,
-            AbstractThread* aMainThread)
+    Message(MediaStream* aStream, already_AddRefed<nsIRunnable> aRunnable)
       : ControlMessage(aStream)
       , mRunnable(aRunnable)
-      , mAbstractMainThread(aMainThread)
     {}
     void Run() override
     {
-      mStream->Graph()->
-        DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+      mStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
         mRunnable.forget());
     }
     void RunDuringShutdown() override
@@ -2577,15 +2569,13 @@ MediaStream::RunAfterPendingUpdates(already_AddRefed<nsIRunnable> aRunnable)
       // Don't run mRunnable now as it may call AppendMessage() which would
       // assume that there are no remaining controlMessagesToRunDuringShutdown.
       MOZ_ASSERT(NS_IsMainThread());
-      NS_DispatchToCurrentThread(mRunnable);
+      mStream->GraphImpl()->Dispatch(mRunnable.forget());
     }
   private:
     nsCOMPtr<nsIRunnable> mRunnable;
-    const RefPtr<AbstractThread> mAbstractMainThread;
   };
 
-  graph->AppendMessage(
-    MakeUnique<Message>(this, runnable.forget(), mAbstractMainThread));
+  graph->AppendMessage(MakeUnique<Message>(this, runnable.forget()));
 }
 
 void
@@ -2697,16 +2687,16 @@ MediaStream::AddMainThreadListener(MainThreadMediaStreamListener* aListener)
   };
 
   nsCOMPtr<nsIRunnable> runnable = new NotifyRunnable(this);
-  Unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable.forget())));
+  GraphImpl()->Dispatch(runnable.forget());
 }
 
-SourceMediaStream::SourceMediaStream(AbstractThread* aMainThread) :
-  MediaStream(aMainThread),
-  mMutex("mozilla::media::SourceMediaStream"),
-  mUpdateKnownTracksTime(0),
-  mPullEnabled(false),
-  mUpdateFinished(false),
-  mNeedsMixing(false)
+SourceMediaStream::SourceMediaStream()
+  : MediaStream()
+  , mMutex("mozilla::media::SourceMediaStream")
+  , mUpdateKnownTracksTime(0)
+  , mPullEnabled(false)
+  , mUpdateFinished(false)
+  , mNeedsMixing(false)
 {
 }
 
@@ -3312,17 +3302,19 @@ MediaInputPort::BlockSourceTrackId(TrackID aTrackId, BlockingMode aBlockingMode)
     Message(MediaInputPort* aPort,
             TrackID aTrackId,
             BlockingMode aBlockingMode,
-            already_AddRefed<nsIRunnable> aRunnable,
-            AbstractThread* aMainThread)
-      : ControlMessage(aPort->GetDestination()),
-        mPort(aPort), mTrackId(aTrackId), mBlockingMode(aBlockingMode),
-        mRunnable(aRunnable), mAbstractMainThread(aMainThread) {}
+            already_AddRefed<nsIRunnable> aRunnable)
+      : ControlMessage(aPort->GetDestination())
+      , mPort(aPort)
+      , mTrackId(aTrackId)
+      , mBlockingMode(aBlockingMode)
+      , mRunnable(aRunnable)
+    {
+    }
     void Run() override
     {
       mPort->BlockSourceTrackIdImpl(mTrackId, mBlockingMode);
       if (mRunnable) {
-        mStream->Graph()->
-          DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+        mStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
           mRunnable.forget());
       }
     }
@@ -3334,7 +3326,6 @@ MediaInputPort::BlockSourceTrackId(TrackID aTrackId, BlockingMode aBlockingMode)
     TrackID mTrackId;
     BlockingMode mBlockingMode;
     nsCOMPtr<nsIRunnable> mRunnable;
-    const RefPtr<AbstractThread> mAbstractMainThread;
   };
 
   MOZ_ASSERT(IsTrackIDExplicit(aTrackId),
@@ -3346,9 +3337,8 @@ MediaInputPort::BlockSourceTrackId(TrackID aTrackId, BlockingMode aBlockingMode)
     pledge->Resolve(true);
     return NS_OK;
   });
-  GraphImpl()->AppendMessage(MakeUnique<Message>(this, aTrackId, aBlockingMode,
-                                                 runnable.forget(),
-                                                 mAbstractMainThread));
+  GraphImpl()->AppendMessage(
+    MakeUnique<Message>(this, aTrackId, aBlockingMode, runnable.forget()));
   return pledge.forget();
 }
 
@@ -3386,9 +3376,8 @@ ProcessedMediaStream::AllocateInputPort(MediaStream* aStream, TrackID aTrackID,
              "Only TRACK_ANY and explicit ID are allowed for destination track");
   MOZ_ASSERT(aTrackID != TRACK_ANY || aDestTrackID == TRACK_ANY,
              "Generic MediaInputPort cannot produce a single destination track");
-  RefPtr<MediaInputPort> port =
-    new MediaInputPort(aStream, aTrackID, this, aDestTrackID,
-                       aInputNumber, aOutputNumber, mAbstractMainThread);
+  RefPtr<MediaInputPort> port = new MediaInputPort(
+    aStream, aTrackID, this, aDestTrackID, aInputNumber, aOutputNumber);
   if (aBlockedTracks) {
     for (TrackID trackID : *aBlockedTracks) {
       port->BlockSourceTrackIdImpl(trackID, BlockingMode::CREATION);
@@ -3450,7 +3439,8 @@ ProcessedMediaStream::DestroyImpl()
 
 MediaStreamGraphImpl::MediaStreamGraphImpl(GraphDriverType aDriverRequested,
                                            TrackRate aSampleRate,
-                                           dom::AudioChannel aChannel)
+                                           dom::AudioChannel aChannel,
+                                           AbstractThread* aMainThread)
   : MediaStreamGraph(aSampleRate)
   , mPortCount(0)
   , mInputWanted(false)
@@ -3470,6 +3460,7 @@ MediaStreamGraphImpl::MediaStreamGraphImpl(GraphDriverType aDriverRequested,
   , mNonRealtimeProcessing(false)
   , mStreamOrderDirty(false)
   , mLatencyLog(AsyncLatencyLogger::Get())
+  , mAbstractMainThread(aMainThread)
 #ifdef MOZ_WEBRTC
   , mFarendObserverRef(nullptr)
 #endif
@@ -3495,6 +3486,13 @@ MediaStreamGraphImpl::MediaStreamGraphImpl(GraphDriverType aDriverRequested,
   RegisterWeakAsyncMemoryReporter(this);
 }
 
+AbstractThread*
+MediaStreamGraph::AbstractMainThread()
+{
+  MOZ_ASSERT(static_cast<MediaStreamGraphImpl*>(this)->mAbstractMainThread);
+  return static_cast<MediaStreamGraphImpl*>(this)->mAbstractMainThread;
+}
+
 void
 MediaStreamGraphImpl::Destroy()
 {
@@ -3505,16 +3503,36 @@ MediaStreamGraphImpl::Destroy()
   mSelfRef = nullptr;
 }
 
+static
+uint32_t ChannelAndWindowToHash(dom::AudioChannel aChannel,
+                                nsPIDOMWindowInner* aWindow)
+{
+  uint32_t hashkey = 0;
+
+  hashkey = AddToHash(hashkey, static_cast<uint32_t>(aChannel));
+  hashkey = AddToHash(hashkey, aWindow);
+
+  return hashkey;
+}
+
 MediaStreamGraph*
 MediaStreamGraph::GetInstance(MediaStreamGraph::GraphDriverType aGraphDriverRequested,
-                              dom::AudioChannel aChannel)
+                              dom::AudioChannel aChannel,
+                              nsPIDOMWindowInner* aWindow)
 {
   NS_ASSERTION(NS_IsMainThread(), "Main thread only");
 
   uint32_t channel = static_cast<uint32_t>(aChannel);
   MediaStreamGraphImpl* graph = nullptr;
 
-  if (!gGraphs.Get(channel, &graph)) {
+  // We hash the AudioChannel and the nsPIDOMWindowInner together to form a key
+  // to the gloabl MediaStreamGraph hashtable. Effectively, this means there is
+  // a graph per document and AudioChannel.
+
+
+  uint32_t hashkey = ChannelAndWindowToHash(aChannel, aWindow);
+
+  if (!gGraphs.Get(hashkey, &graph)) {
     if (!gMediaStreamGraphShutdownBlocker) {
 
       class Blocker : public media::ShutdownBlocker
@@ -3550,30 +3568,41 @@ MediaStreamGraph::GetInstance(MediaStreamGraph::GraphDriverType aGraphDriverRequ
       MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
     }
 
+    AbstractThread* mainThread;
+    if (aWindow) {
+      nsCOMPtr<nsIGlobalObject> parentObject = do_QueryInterface(aWindow);
+      mainThread = parentObject->AbstractMainThreadFor(TaskCategory::Other);
+    } else {
+      // Uncommon case, only for some old configuration of webspeech.
+      mainThread = AbstractThread::MainThread();
+    }
     graph = new MediaStreamGraphImpl(aGraphDriverRequested,
                                      CubebUtils::PreferredSampleRate(),
-                                     aChannel);
+                                     aChannel,
+                                     mainThread);
 
-    gGraphs.Put(channel, graph);
+    gGraphs.Put(hashkey, graph);
 
     LOG(LogLevel::Debug,
-        ("Starting up MediaStreamGraph %p for channel %s",
-         graph,
-         AudioChannelValues::strings[channel].value));
+        ("Starting up MediaStreamGraph %p for channel %s and window %p",
+         graph, AudioChannelValues::strings[channel].value, aWindow));
   }
 
   return graph;
 }
 
 MediaStreamGraph*
-MediaStreamGraph::CreateNonRealtimeInstance(TrackRate aSampleRate)
+MediaStreamGraph::CreateNonRealtimeInstance(TrackRate aSampleRate,
+                                            nsPIDOMWindowInner* aWindow)
 {
   NS_ASSERTION(NS_IsMainThread(), "Main thread only");
 
-  MediaStreamGraphImpl* graph =
-    new MediaStreamGraphImpl(OFFLINE_THREAD_DRIVER,
+  nsCOMPtr<nsIGlobalObject> parentObject = do_QueryInterface(aWindow);
+  MediaStreamGraphImpl* graph = new MediaStreamGraphImpl(
+    OFFLINE_THREAD_DRIVER,
     aSampleRate,
-                             AudioChannel::Normal);
+    AudioChannel::Normal,
+    parentObject->AbstractMainThreadFor(TaskCategory::Other));
 
   LOG(LogLevel::Debug, ("Starting up Offline MediaStreamGraph %p", graph));
 
@@ -3693,7 +3722,7 @@ MediaStreamGraphImpl::CollectSizesForMemoryReport(
     }
   }
 
-  NS_DispatchToMainThread(runnable.forget());
+  mAbstractMainThread->Dispatch(runnable.forget());
 }
 
 void
@@ -3744,25 +3773,25 @@ FinishCollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData,
 }
 
 SourceMediaStream*
-MediaStreamGraph::CreateSourceStream(AbstractThread* aMainThread)
+MediaStreamGraph::CreateSourceStream()
 {
-  SourceMediaStream* stream = new SourceMediaStream(aMainThread);
+  SourceMediaStream* stream = new SourceMediaStream();
   AddStream(stream);
   return stream;
 }
 
 ProcessedMediaStream*
-MediaStreamGraph::CreateTrackUnionStream(AbstractThread* aMainThread)
+MediaStreamGraph::CreateTrackUnionStream()
 {
-  TrackUnionStream* stream = new TrackUnionStream(aMainThread);
+  TrackUnionStream* stream = new TrackUnionStream();
   AddStream(stream);
   return stream;
 }
 
 ProcessedMediaStream*
-MediaStreamGraph::CreateAudioCaptureStream(TrackID aTrackId, AbstractThread* aMainThread)
+MediaStreamGraph::CreateAudioCaptureStream(TrackID aTrackId)
 {
-  AudioCaptureStream* stream = new AudioCaptureStream(aTrackId, aMainThread);
+  AudioCaptureStream* stream = new AudioCaptureStream(aTrackId);
   AddStream(stream);
   return stream;
 }
@@ -3817,11 +3846,11 @@ MediaStreamGraph::NotifyWhenGraphStarted(AudioNodeStream* aStream)
       if (graphImpl->CurrentDriver()->AsAudioCallbackDriver()) {
         nsCOMPtr<nsIRunnable> event = new dom::StateChangeTask(
             mStream->AsAudioNodeStream(), nullptr, AudioContextState::Running);
-        NS_DispatchToMainThread(event.forget());
+        graphImpl->Dispatch(event.forget());
       } else {
         nsCOMPtr<nsIRunnable> event = new GraphStartedRunnable(
             mStream->AsAudioNodeStream(), mStream->Graph());
-        NS_DispatchToMainThread(event.forget());
+        graphImpl->Dispatch(event.forget());
       }
     }
     void RunDuringShutdown() override
@@ -3920,7 +3949,7 @@ MediaStreamGraphImpl::AudioContextOperationCompleted(MediaStream* aStream,
 
   nsCOMPtr<nsIRunnable> event = new dom::StateChangeTask(
       aStream->AsAudioNodeStream(), aPromise, state);
-  NS_DispatchToMainThread(event.forget());
+  mAbstractMainThread->Dispatch(event.forget());
 }
 
 void
@@ -4165,14 +4194,12 @@ MediaStreamGraphImpl::ConnectToCaptureStream(uint64_t aWindowId,
 }
 
 void
-MediaStreamGraph::
-DispatchToMainThreadAfterStreamStateUpdate(AbstractThread* aMainThread,
+MediaStreamGraph::DispatchToMainThreadAfterStreamStateUpdate(
   already_AddRefed<nsIRunnable> aRunnable)
 {
-  MOZ_ASSERT(aMainThread);
   AssertOnGraphThreadOrNotRunning();
   *mPendingUpdateRunnables.AppendElement() =
-    aMainThread->CreateDirectTaskDrainer(Move(aRunnable));
+    AbstractMainThread()->CreateDirectTaskDrainer(Move(aRunnable));
 }
 
 } // namespace mozilla

dom/media/MediaStreamGraph.h

@@ -22,6 +22,8 @@
 #include <speex/speex_resampler.h>
 
 class nsIRunnable;
+class nsIGlobalObject;
+class nsPIDOMWindowInner;
 
 template <>
 class nsAutoRefTraits<SpeexResamplerState> : public nsPointerRefTraits<SpeexResamplerState>
@@ -75,7 +77,6 @@ namespace media {
  * reprocess it. This is triggered automatically by the MediaStreamGraph.
  */
 
-class AbstractThread;
 class AudioNodeEngine;
 class AudioNodeExternalInputStream;
 class AudioNodeStream;
@@ -253,7 +254,7 @@ class MediaStream : public mozilla::LinkedListElement<MediaStream>
 public:
   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MediaStream)
 
-  explicit MediaStream(AbstractThread* aMainThread);
+  explicit MediaStream();
 
 protected:
   // Protected destructor, to discourage deletion outside of Release():
@@ -663,8 +664,6 @@ protected:
   MediaStreamGraphImpl* mGraph;
 
   dom::AudioChannel mAudioChannelType;
-
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 /**
@@ -676,7 +675,7 @@ protected:
 class SourceMediaStream : public MediaStream
 {
 public:
-  explicit SourceMediaStream(AbstractThread* aMainThread);
+  explicit SourceMediaStream();
 
   SourceMediaStream* AsSourceStream() override { return this; }
 
@@ -957,10 +956,12 @@ class MediaInputPort final
 {
 private:
   // Do not call this constructor directly. Instead call aDest->AllocateInputPort.
-  MediaInputPort(MediaStream* aSource, TrackID& aSourceTrack,
-                 ProcessedMediaStream* aDest, TrackID& aDestTrack,
-                 uint16_t aInputNumber, uint16_t aOutputNumber,
-                 AbstractThread* aMainThread)
+  MediaInputPort(MediaStream* aSource,
+                 TrackID& aSourceTrack,
+                 ProcessedMediaStream* aDest,
+                 TrackID& aDestTrack,
+                 uint16_t aInputNumber,
+                 uint16_t aOutputNumber)
     : mSource(aSource)
     , mSourceTrack(aSourceTrack)
     , mDest(aDest)
@@ -968,7 +969,6 @@ private:
     , mInputNumber(aInputNumber)
     , mOutputNumber(aOutputNumber)
     , mGraph(nullptr)
-    , mAbstractMainThread(aMainThread)
   {
     MOZ_COUNT_CTOR(MediaInputPort);
   }
@@ -1111,8 +1111,6 @@ private:
 
   // Our media stream graph
   MediaStreamGraphImpl* mGraph;
-
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 /**
@@ -1123,8 +1121,10 @@ private:
 class ProcessedMediaStream : public MediaStream
 {
 public:
-  explicit ProcessedMediaStream(AbstractThread* aMainThread)
-    : MediaStream(aMainThread), mAutofinish(false), mCycleMarker(0)
+  explicit ProcessedMediaStream()
+    : MediaStream()
+    , mAutofinish(false)
+    , mCycleMarker(0)
   {}
 
   // Control API.
@@ -1248,7 +1248,7 @@ protected:
 };
 
 /**
- * There can be multiple MediaStreamGraph per process: one per AudioChannel.
+ * There is a single MediaStreamGraph per window.
  * Additionaly, each OfflineAudioContext object creates its own MediaStreamGraph
  * object too..
  */
@@ -1275,8 +1275,16 @@ public:
 
   // Main thread only
   static MediaStreamGraph* GetInstance(GraphDriverType aGraphDriverRequested,
-                                       dom::AudioChannel aChannel);
-  static MediaStreamGraph* CreateNonRealtimeInstance(TrackRate aSampleRate);
+                                       dom::AudioChannel aChannel,
+                                       nsPIDOMWindowInner* aWindow);
+  static MediaStreamGraph* CreateNonRealtimeInstance(
+    TrackRate aSampleRate,
+    nsPIDOMWindowInner* aWindowId);
+
+  // Return the correct main thread for this graph. This always returns
+  // something that is valid. Thread safe.
+  AbstractThread* AbstractMainThread();
+
   // Idempotent
   static void DestroyNonRealtimeInstance(MediaStreamGraph* aGraph);
 
@@ -1291,7 +1299,7 @@ public:
    * Create a stream that a media decoder (or some other source of
    * media data, such as a camera) can write to.
    */
-  SourceMediaStream* CreateSourceStream(AbstractThread* aMainThread);
+  SourceMediaStream* CreateSourceStream();
   /**
    * Create a stream that will form the union of the tracks of its input
    * streams.
@@ -1306,12 +1314,11 @@ public:
    * TODO at some point we will probably need to add API to select
    * particular tracks of each input stream.
    */
-  ProcessedMediaStream* CreateTrackUnionStream(AbstractThread* aMainThread);
+  ProcessedMediaStream* CreateTrackUnionStream();
   /**
    * Create a stream that will mix all its audio input.
    */
-  ProcessedMediaStream* CreateAudioCaptureStream(TrackID aTrackId,
-                                                 AbstractThread* aMainThread);
+  ProcessedMediaStream* CreateAudioCaptureStream(TrackID aTrackId);
 
   /**
    * Add a new stream to the graph.  Main thread.
@@ -1349,18 +1356,8 @@ public:
    *
    * Should only be called during MediaStreamListener callbacks or during
    * ProcessedMediaStream::ProcessInput().
-   *
-   * |aMainThread| is the corresponding AbstractThread on the main thread to
-   * drain the direct tasks generated by |aRunnable|.
-   * Note: The reasons for assigning proper |aMainThread| are
-   * - MSG serves media elements in multiple windows run on main thread.
-   * - DocGroup-specific AbstractMainThread is introduced to cluster the tasks
-   *   of the same window for prioritizing tasks among different windows.
-   * - Proper |aMainThread| ensures that tasks dispatched to the main thread are
-   *   clustered to the right queue and are executed in right order.
    */
-  virtual void
-  DispatchToMainThreadAfterStreamStateUpdate(AbstractThread* aMainThread,
+  virtual void DispatchToMainThreadAfterStreamStateUpdate(
     already_AddRefed<nsIRunnable> aRunnable);
 
   /**

dom/media/MediaStreamGraphImpl.h

@@ -116,7 +116,8 @@ public:
    */
   explicit MediaStreamGraphImpl(GraphDriverType aGraphDriverRequested,
                                 TrackRate aSampleRate,
-                                dom::AudioChannel aChannel);
+                                dom::AudioChannel aChannel,
+                                AbstractThread* aWindow);
 
   /**
    * Unregisters memory reporting and deletes this instance. This should be
@@ -149,6 +150,12 @@ public:
    */
   void AppendMessage(UniquePtr<ControlMessage> aMessage);
 
+  /**
+   * Dispatches a runnable from any thread to the correct main thread for this
+   * MediaStreamGraph.
+   */
+  void Dispatch(already_AddRefed<nsIRunnable>&& aRunnable);
+
   // Shutdown helpers.
 
   static already_AddRefed<nsIAsyncShutdownClient>
@@ -805,6 +812,7 @@ public:
    */
   RefPtr<AsyncLatencyLogger> mLatencyLog;
   AudioMixer mMixer;
+  const RefPtr<AbstractThread> mAbstractMainThread;
 #ifdef MOZ_WEBRTC
   RefPtr<AudioOutputObserver> mFarendObserverRef;
 #endif

dom/media/MediaStreamTrack.cpp

@@ -88,7 +88,6 @@ class MediaStreamTrack::PrincipalHandleListener : public MediaStreamTrackListene
 public:
   explicit PrincipalHandleListener(MediaStreamTrack* aTrack)
     : mTrack(aTrack)
-    , mAbstractMainThread(aTrack->mOwningStream->AbstractMainThread())
     {}
 
   void Forget()
@@ -112,7 +111,6 @@ public:
                                     const PrincipalHandle& aNewPrincipalHandle) override
   {
     aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-      mAbstractMainThread,
       NewRunnableMethod<StoreCopyPassByConstLRef<PrincipalHandle>>(
         "dom::MediaStreamTrack::PrincipalHandleListener::"
         "DoNotifyPrincipalHandleChanged",
@@ -124,7 +122,6 @@ public:
 protected:
   // These fields may only be accessed on the main thread
   MediaStreamTrack* mTrack;
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 MediaStreamTrack::MediaStreamTrack(DOMMediaStream* aStream, TrackID aTrackID,

dom/media/TrackUnionStream.cpp

@@ -46,8 +46,9 @@ namespace mozilla {
 LazyLogModule gTrackUnionStreamLog("TrackUnionStream");
 #define STREAM_LOG(type, msg) MOZ_LOG(gTrackUnionStreamLog, type, msg)
 
-TrackUnionStream::TrackUnionStream(AbstractThread* aMainThread) :
-  ProcessedMediaStream(aMainThread), mNextAvailableTrackID(1)
+TrackUnionStream::TrackUnionStream()
+  : ProcessedMediaStream()
+  , mNextAvailableTrackID(1)
 {
 }
 

dom/media/TrackUnionStream.h

@@ -17,7 +17,7 @@ namespace mozilla {
  */
 class TrackUnionStream : public ProcessedMediaStream {
 public:
-  explicit TrackUnionStream(AbstractThread* aMainThread);
+  explicit TrackUnionStream();
 
   virtual TrackUnionStream* AsTrackUnionStream() override { return this; }
   friend class DOMMediaStream;

dom/media/mediasink/DecodedStream.cpp

@@ -59,7 +59,6 @@ public:
   {
     if (event == MediaStreamGraphEvent::EVENT_FINISHED) {
       aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-        mAbstractMainThread,
         NewRunnableMethod("DecodedStreamGraphListener::DoNotifyFinished",
                           this,
                           &DecodedStreamGraphListener::DoNotifyFinished));
@@ -183,7 +182,7 @@ DecodedStreamData::DecodedStreamData(OutputStreamManager* aOutputStreamManager,
   , mHaveSentFinish(false)
   , mHaveSentFinishAudio(false)
   , mHaveSentFinishVideo(false)
-  , mStream(aOutputStreamManager->Graph()->CreateSourceStream(aMainThread))
+  , mStream(aOutputStreamManager->Graph()->CreateSourceStream())
   // DecodedStreamGraphListener will resolve this promise.
   , mListener(new DecodedStreamGraphListener(mStream, Move(aPromise), aMainThread))
   // mPlaying is initially true because MDSM won't start playback until playing

dom/media/webaudio/AudioDestinationNode.cpp

@@ -168,8 +168,7 @@ public:
 
     aNode->ResolvePromise(renderedBuffer);
 
-    mAbstractMainThread->Dispatch(do_AddRef(new OnCompleteTask(context,
-                                                               renderedBuffer)));
+    context->Dispatch(do_AddRef(new OnCompleteTask(context, renderedBuffer)));
 
     context->OnStateChanged(nullptr, AudioContextState::Closed);
   }
@@ -261,8 +260,7 @@ public:
 
       RefPtr<InputMutedRunnable> runnable =
         new InputMutedRunnable(aStream, newInputMuted);
-      aStream->Graph()->
-        DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+      aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
         runnable.forget());
     }
   }
@@ -335,9 +333,12 @@ AudioDestinationNode::AudioDestinationNode(AudioContext* aContext,
   , mCaptured(false)
   , mAudible(AudioChannelService::AudibleState::eAudible)
 {
-  MediaStreamGraph* graph = aIsOffline ?
-                            MediaStreamGraph::CreateNonRealtimeInstance(aSampleRate) :
-                            MediaStreamGraph::GetInstance(MediaStreamGraph::AUDIO_THREAD_DRIVER, aChannel);
+  nsPIDOMWindowInner* window = aContext->GetParentObject();
+  MediaStreamGraph* graph =
+    aIsOffline
+      ? MediaStreamGraph::CreateNonRealtimeInstance(aSampleRate, window)
+      : MediaStreamGraph::GetInstance(
+          MediaStreamGraph::AUDIO_THREAD_DRIVER, aChannel, window);
   AudioNodeEngine* engine = aIsOffline ?
                             new OfflineDestinationNodeEngine(this, aNumberOfChannels,
                                                              aLength, aSampleRate) :

dom/media/webaudio/AudioNodeExternalInputStream.cpp

@@ -15,8 +15,9 @@ using namespace mozilla::dom;
 namespace mozilla {
 
 AudioNodeExternalInputStream::AudioNodeExternalInputStream(
-  AudioNodeEngine* aEngine, TrackRate aSampleRate, AbstractThread* aMainThread)
-  : AudioNodeStream(aEngine, NO_STREAM_FLAGS, aSampleRate, aMainThread)
+  AudioNodeEngine* aEngine,
+  TrackRate aSampleRate)
+  : AudioNodeStream(aEngine, NO_STREAM_FLAGS, aSampleRate)
 {
   MOZ_COUNT_CTOR(AudioNodeExternalInputStream);
 }
@@ -28,15 +29,14 @@ AudioNodeExternalInputStream::~AudioNodeExternalInputStream()
 
 /* static */ already_AddRefed<AudioNodeExternalInputStream>
 AudioNodeExternalInputStream::Create(MediaStreamGraph* aGraph,
-                                     AudioNodeEngine* aEngine,
-                                     AbstractThread* aMainThread)
+                                     AudioNodeEngine* aEngine)
 {
   AudioContext* ctx = aEngine->NodeMainThread()->Context();
   MOZ_ASSERT(NS_IsMainThread());
   MOZ_ASSERT(aGraph->GraphRate() == ctx->SampleRate());
 
   RefPtr<AudioNodeExternalInputStream> stream =
-    new AudioNodeExternalInputStream(aEngine, aGraph->GraphRate(), aMainThread);
+    new AudioNodeExternalInputStream(aEngine, aGraph->GraphRate());
   stream->mSuspendedCount += ctx->ShouldSuspendNewStream();
   aGraph->AddStream(stream);
   return stream.forget();

dom/media/webaudio/AudioNodeExternalInputStream.h

@@ -23,12 +23,12 @@ class AbstractThread;
 class AudioNodeExternalInputStream final : public AudioNodeStream
 {
 public:
-  static already_AddRefed<AudioNodeExternalInputStream>
-  Create(MediaStreamGraph* aGraph, AudioNodeEngine* aEngine, AbstractThread* aMainThread);
+  static already_AddRefed<AudioNodeExternalInputStream> Create(
+    MediaStreamGraph* aGraph,
+    AudioNodeEngine* aEngine);
 
 protected:
-  AudioNodeExternalInputStream(AudioNodeEngine* aEngine, TrackRate aSampleRate,
-                               AbstractThread* aMainThread);
+  AudioNodeExternalInputStream(AudioNodeEngine* aEngine, TrackRate aSampleRate);
   ~AudioNodeExternalInputStream();
 
 public:

dom/media/webaudio/AudioNodeStream.cpp

@@ -29,17 +29,16 @@ namespace mozilla {
 
 AudioNodeStream::AudioNodeStream(AudioNodeEngine* aEngine,
                                  Flags aFlags,
-                                 TrackRate aSampleRate,
-                                 AbstractThread* aMainThread)
-  : ProcessedMediaStream(aMainThread),
-    mEngine(aEngine),
-    mSampleRate(aSampleRate),
-    mFlags(aFlags),
-    mNumberOfInputChannels(2),
-    mIsActive(aEngine->IsActive()),
-    mMarkAsFinishedAfterThisBlock(false),
-    mAudioParamStream(false),
-    mPassThrough(false)
+                                 TrackRate aSampleRate)
+  : ProcessedMediaStream()
+  , mEngine(aEngine)
+  , mSampleRate(aSampleRate)
+  , mFlags(aFlags)
+  , mNumberOfInputChannels(2)
+  , mIsActive(aEngine->IsActive())
+  , mMarkAsFinishedAfterThisBlock(false)
+  , mAudioParamStream(false)
+  , mPassThrough(false)
 {
   MOZ_ASSERT(NS_IsMainThread());
   mSuspendedCount = !(mIsActive || mFlags & EXTERNAL_OUTPUT);
@@ -78,8 +77,7 @@ AudioNodeStream::Create(AudioContext* aCtx, AudioNodeEngine* aEngine,
   AudioNode* node = aEngine->NodeMainThread();
 
   RefPtr<AudioNodeStream> stream =
-    new AudioNodeStream(aEngine, aFlags, aGraph->GraphRate(),
-      aCtx->GetOwnerGlobal()->AbstractMainThreadFor(TaskCategory::Other));
+    new AudioNodeStream(aEngine, aFlags, aGraph->GraphRate());
   stream->mSuspendedCount += aCtx->ShouldSuspendNewStream();
   if (node) {
     stream->SetChannelMixingParametersImpl(node->ChannelCount(),

dom/media/webaudio/AudioNodeStream.h

@@ -76,8 +76,7 @@ protected:
    */
   AudioNodeStream(AudioNodeEngine* aEngine,
                   Flags aFlags,
-                  TrackRate aSampleRate,
-                  AbstractThread* aMainThread);
+                  TrackRate aSampleRate);
 
   ~AudioNodeStream();
 

dom/media/webaudio/BiquadFilterNode.cpp

@@ -159,8 +159,7 @@ public:
 
           RefPtr<PlayingRefChangeHandler> refchanged =
             new PlayingRefChangeHandler(aStream, PlayingRefChangeHandler::RELEASE);
-          aStream->Graph()->
-            DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+          aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
             refchanged.forget());
         }
 
@@ -174,8 +173,7 @@ public:
       if (mBiquads.IsEmpty()) {
         RefPtr<PlayingRefChangeHandler> refchanged =
           new PlayingRefChangeHandler(aStream, PlayingRefChangeHandler::ADDREF);
-        aStream->Graph()->
-          DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+        aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
           refchanged.forget());
       } else { // Help people diagnose bug 924718
         WebAudioUtils::LogToDeveloperConsole(mWindowID,

dom/media/webaudio/ConvolverNode.cpp

@@ -125,8 +125,7 @@ public:
           aStream->ScheduleCheckForInactive();
           RefPtr<PlayingRefChanged> refchanged =
             new PlayingRefChanged(aStream, PlayingRefChanged::RELEASE);
-          aStream->Graph()->
-            DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+          aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
             refchanged.forget());
         }
         aOutput->SetNull(WEBAUDIO_BLOCK_SIZE);
@@ -147,8 +146,7 @@ public:
       if (mLeftOverData <= 0) {
         RefPtr<PlayingRefChanged> refchanged =
           new PlayingRefChanged(aStream, PlayingRefChanged::ADDREF);
-        aStream->Graph()->
-          DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+        aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
           refchanged.forget());
       }
       mLeftOverData = mBufferLength;

dom/media/webaudio/DelayNode.cpp

@@ -82,8 +82,7 @@ public:
       if (mLeftOverData <= 0) {
         RefPtr<PlayingRefChanged> refchanged =
           new PlayingRefChanged(aStream, PlayingRefChanged::ADDREF);
-        aStream->Graph()->
-          DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+        aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
           refchanged.forget());
       }
       mLeftOverData = mBuffer.MaxDelayTicks();
@@ -99,8 +98,7 @@ public:
 
         RefPtr<PlayingRefChanged> refchanged =
           new PlayingRefChanged(aStream, PlayingRefChanged::RELEASE);
-        aStream->Graph()->
-          DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+        aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
           refchanged.forget());
       }
       aOutput->SetNull(WEBAUDIO_BLOCK_SIZE);

dom/media/webaudio/IIRFilterNode.cpp

@@ -56,8 +56,7 @@ public:
 
           RefPtr<PlayingRefChangeHandler> refchanged =
             new PlayingRefChangeHandler(aStream, PlayingRefChangeHandler::RELEASE);
-          aStream->Graph()->
-            DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+          aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
             refchanged.forget());
 
           aOutput->SetNull(WEBAUDIO_BLOCK_SIZE);
@@ -70,8 +69,7 @@ public:
       if (mIIRFilters.IsEmpty()) {
         RefPtr<PlayingRefChangeHandler> refchanged =
           new PlayingRefChangeHandler(aStream, PlayingRefChangeHandler::ADDREF);
-        aStream->Graph()->
-          DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+        aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
           refchanged.forget());
       } else {
         WebAudioUtils::LogToDeveloperConsole(mWindowID,

dom/media/webaudio/MediaStreamAudioSourceNode.cpp

@@ -84,9 +84,7 @@ MediaStreamAudioSourceNode::Init(DOMMediaStream* aMediaStream, ErrorResult& aRv)
 
   mInputStream = aMediaStream;
   AudioNodeEngine* engine = new MediaStreamAudioSourceNodeEngine(this);
-  mStream =
-    AudioNodeExternalInputStream::Create(graph, engine,
-                                         aMediaStream->AbstractMainThread());
+  mStream = AudioNodeExternalInputStream::Create(graph, engine);
   mInputStream->AddConsumerToKeepAlive(static_cast<nsIDOMEventTarget*>(this));
 
   mInputStream->RegisterTrackListener(this);

dom/media/webaudio/PannerNode.cpp

@@ -208,8 +208,7 @@ public:
 
           RefPtr<PlayingRefChangeHandler> refchanged =
             new PlayingRefChangeHandler(aStream, PlayingRefChangeHandler::RELEASE);
-          aStream->Graph()->
-          DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+          aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
             refchanged.forget());
         }
         aOutput->SetNull(WEBAUDIO_BLOCK_SIZE);
@@ -219,8 +218,7 @@ public:
       if (mLeftOverData == INT_MIN) {
         RefPtr<PlayingRefChangeHandler> refchanged =
           new PlayingRefChangeHandler(aStream, PlayingRefChangeHandler::ADDREF);
-        aStream->Graph()->
-          DispatchToMainThreadAfterStreamStateUpdate(mAbstractMainThread,
+        aStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(
           refchanged.forget());
       }
       mLeftOverData = mHRTFPanner->maxTailFrames();

dom/media/webrtc/AudioOutputObserver.h

@@ -21,23 +21,18 @@ typedef struct FarEndAudioChunk_ {
   int16_t mData[1]; // variable-length
 } FarEndAudioChunk;
 
-// XXX Really a singleton currently
-class AudioOutputObserver : public MixerCallbackReceiver
+// This class is used to packetize and send the mixed audio from an MSG, in
+// int16, to the AEC module of WebRTC.org.
+class AudioOutputObserver
 {
 public:
   AudioOutputObserver();
 
   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(AudioOutputObserver);
 
-  void MixerCallback(AudioDataValue* aMixedBuffer,
-                     AudioSampleFormat aFormat,
-                     uint32_t aChannels,
-                     uint32_t aFrames,
-                     uint32_t aSampleRate) override;
-
   void Clear();
   void InsertFarEnd(const AudioDataValue *aBuffer, uint32_t aFrames, bool aOverran,
-                    int aFreq, int aChannels, AudioSampleFormat aFormat);
+                    int aFreq, int aChannels);
   uint32_t PlayoutFrequency() { return mPlayoutFreq; }
   uint32_t PlayoutChannels() { return mPlayoutChannels; }
 

dom/media/webrtc/MediaEngineWebRTC.cpp

@@ -118,8 +118,6 @@ MediaEngineWebRTC::MediaEngineWebRTC(MediaEnginePrefs &aPrefs)
   if (compMgr) {
     compMgr->IsContractIDRegistered(NS_TABSOURCESERVICE_CONTRACTID, &mHasTabVideoSource);
   }
-  // XXX
-  gFarendObserver = new AudioOutputObserver();
 
   camera::GetChildAndCall(
     &camera::CamerasChild::AddDeviceChangeCallback,

dom/media/webrtc/MediaEngineWebRTC.h

@@ -598,6 +598,7 @@ private:
   webrtc::VoiceEngine* mVoiceEngine;
   RefPtr<mozilla::AudioInput> mAudioInput;
   RefPtr<WebRTCAudioDataListener> mListener;
+  RefPtr<AudioOutputObserver> mAudioOutputObserver;
 
   // Note: shared across all microphone sources - we don't want to Terminate()
   // the VoEBase until there are no active captures
@@ -607,6 +608,7 @@ private:
   static ScopedCustomReleasePtr<webrtc::VoENetwork> mVoENetwork;
   static ScopedCustomReleasePtr<webrtc::VoEAudioProcessing> mVoEProcessing;
 
+
   // accessed from the GraphDriver thread except for deletion
   nsAutoPtr<AudioPacketizer<AudioDataValue, int16_t>> mPacketizer;
   ScopedCustomReleasePtr<webrtc::VoEExternalMedia> mVoERenderListener;
@@ -664,9 +666,7 @@ public:
   void EnumerateAudioDevices(dom::MediaSourceEnum,
                              nsTArray<RefPtr<MediaEngineAudioSource>>*) override;
 private:
-  ~MediaEngineWebRTC() {
-    gFarendObserver = nullptr;
-  }
+  ~MediaEngineWebRTC() {}
 
   nsCOMPtr<nsIThread> mThread;
 

dom/media/webrtc/MediaEngineWebRTCAudio.cpp

@@ -51,9 +51,6 @@ LogModule* AudioLogModule() {
 NS_IMPL_ISUPPORTS0(MediaEngineWebRTCMicrophoneSource)
 NS_IMPL_ISUPPORTS0(MediaEngineWebRTCAudioCaptureSource)
 
-// XXX temp until MSG supports registration
-StaticRefPtr<AudioOutputObserver> gFarendObserver;
-
 int MediaEngineWebRTCMicrophoneSource::sChannelsOpen = 0;
 ScopedCustomReleasePtr<webrtc::VoEBase> MediaEngineWebRTCMicrophoneSource::mVoEBase;
 ScopedCustomReleasePtr<webrtc::VoEExternalMedia> MediaEngineWebRTCMicrophoneSource::mVoERender;
@@ -99,23 +96,10 @@ AudioOutputObserver::Size()
   return mPlayoutFifo->size();
 }
 
-void
-AudioOutputObserver::MixerCallback(AudioDataValue* aMixedBuffer,
-                                   AudioSampleFormat aFormat,
-                                   uint32_t aChannels,
-                                   uint32_t aFrames,
-                                   uint32_t aSampleRate)
-{
-  if (gFarendObserver) {
-    gFarendObserver->InsertFarEnd(aMixedBuffer, aFrames, false,
-                                  aSampleRate, aChannels, aFormat);
-  }
-}
-
 // static
 void
 AudioOutputObserver::InsertFarEnd(const AudioDataValue *aBuffer, uint32_t aFrames, bool aOverran,
-                                  int aFreq, int aChannels, AudioSampleFormat aFormat)
+                                  int aFreq, int aChannels)
 {
   if (mPlayoutChannels != 0) {
     if (mPlayoutChannels != static_cast<uint32_t>(aChannels)) {
@@ -414,6 +398,11 @@ MediaEngineWebRTCMicrophoneSource::UpdateSingleSource(
   mSkipProcessing = !(prefs.mAecOn || prefs.mAgcOn || prefs.mNoiseOn);
   if (mSkipProcessing) {
     mSampleFrequency = MediaEngine::USE_GRAPH_RATE;
+    mAudioOutputObserver = nullptr;
+  } else {
+    // make sure we route a copy of the mixed audio output of this MSG to the
+    // AEC
+    mAudioOutputObserver = new AudioOutputObserver();
   }
   SetLastPrefs(prefs);
   return NS_OK;
@@ -500,10 +489,8 @@ MediaEngineWebRTCMicrophoneSource::Start(SourceMediaStream *aStream,
   // Make sure logger starts before capture
   AsyncLatencyLogger::Get(true);
 
-  // Register output observer
-  // XXX
-  MOZ_ASSERT(gFarendObserver);
-  gFarendObserver->Clear();
+  MOZ_ASSERT(mAudioOutputObserver);
+  mAudioOutputObserver->Clear();
 
   if (mVoEBase->StartReceive(mChannel)) {
     return NS_ERROR_FAILURE;
@@ -590,6 +577,10 @@ MediaEngineWebRTCMicrophoneSource::NotifyOutputData(MediaStreamGraph* aGraph,
                                                     TrackRate aRate,
                                                     uint32_t aChannels)
 {
+  if (mAudioOutputObserver) {
+    mAudioOutputObserver->InsertFarEnd(aBuffer, aFrames, false,
+                                  aRate, aChannels);
+  }
 }
 
 void
@@ -924,18 +915,18 @@ MediaEngineWebRTCMicrophoneSource::Process(int channel,
   // input code with "old" audio.
   if (!mStarted) {
     mStarted  = true;
-    while (gFarendObserver->Size() > 1) {
-      free(gFarendObserver->Pop()); // only call if size() > 0
+    while (mAudioOutputObserver->Size() > 1) {
+      free(mAudioOutputObserver->Pop()); // only call if size() > 0
     }
   }
 
-  while (gFarendObserver->Size() > 0) {
-    FarEndAudioChunk *buffer = gFarendObserver->Pop(); // only call if size() > 0
+  while (mAudioOutputObserver->Size() > 0) {
+    FarEndAudioChunk *buffer = mAudioOutputObserver->Pop(); // only call if size() > 0
     if (buffer) {
       int length = buffer->mSamples;
       int res = mVoERender->ExternalPlayoutData(buffer->mData,
-                                                gFarendObserver->PlayoutFrequency(),
-                                                gFarendObserver->PlayoutChannels(),
+                                                mAudioOutputObserver->PlayoutFrequency(),
+                                                mAudioOutputObserver->PlayoutChannels(),
                                                 mPlayoutDelay,
                                                 length);
       free(buffer);

dom/media/webspeech/synth/nsSpeechTask.cpp

@@ -37,7 +37,6 @@ public:
     : mSpeechTask(aSpeechTask)
     , mStream(aStream)
     , mStarted(false)
-    , mAbstractMainThread(aMainThread)
   {
   }
 
@@ -65,14 +64,12 @@ public:
           if (!mStarted) {
             mStarted = true;
             aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-              mAbstractMainThread,
               NewRunnableMethod("dom::SynthStreamListener::DoNotifyStarted",
                                 this,
                                 &SynthStreamListener::DoNotifyStarted));
           }
 
           aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-            mAbstractMainThread,
             NewRunnableMethod("dom::SynthStreamListener::DoNotifyFinished",
                               this,
                               &SynthStreamListener::DoNotifyFinished));
@@ -93,7 +90,6 @@ public:
     if (aBlocked == MediaStreamListener::UNBLOCKED && !mStarted) {
       mStarted = true;
       aGraph->DispatchToMainThreadAfterStreamStateUpdate(
-        mAbstractMainThread,
         NewRunnableMethod("dom::SynthStreamListener::DoNotifyStarted",
                           this,
                           &SynthStreamListener::DoNotifyStarted));
@@ -108,8 +104,6 @@ private:
   RefPtr<MediaStream> mStream;
 
   bool mStarted;
-
-  const RefPtr<AbstractThread> mAbstractMainThread;
 };
 
 // nsSpeechTask
@@ -172,9 +166,11 @@ nsSpeechTask::~nsSpeechTask()
 void
 nsSpeechTask::InitDirectAudio()
 {
+  // nullptr as final argument here means that this is not tied to a window.
+  // This is a global MSG.
   mStream = MediaStreamGraph::GetInstance(MediaStreamGraph::AUDIO_THREAD_DRIVER,
-                                          AudioChannel::Normal)->
-    CreateSourceStream(AbstractThread::MainThread() /* Non DocGroup-version for the task in parent. */);
+                                          AudioChannel::Normal, nullptr)->
+    CreateSourceStream();
   mIndirectAudio = false;
   mInited = true;
 }