Merge mozilla-central to fx-team

2015-09-29 12:41:12 +02:00 · 2015-09-29 12:41:12 +02:00 · 191ce6efd0
--- a/5
+++ b/5
@ -22,7 +22,4 @@
 # changes to stick? As of bug 928195, this shouldn't be necessary! Please
 # don't change CLOBBER for WebIDL changes any more.

-Bug 1108782 - Follow-up: clobber. r=me
-
-There's all kinds fail waiting at the end of these dependency changes.
-Definitely clobber needed!
+Bug 1205242 - Changed toolchain, needs clobber
--- a/accessible/generic/DocAccessible.cpp
+++ b/accessible/generic/DocAccessible.cpp
@ -2071,6 +2071,10 @@ DocAccessible::ValidateARIAOwned()
      nsIContent* childEl = childEls->ElementAt(idx);
      Accessible* child = GetAccessible(childEl);
      if (child && child->IsInDocument() && !child->GetFrame()) {
+        if (!child->Parent()) {
+          NS_ERROR("An element in the document doesn't have a parent?");
+          continue;
+        }
        UpdateTreeOnRemoval(child->Parent(), childEl);
      }
    }
--- a/accessible/ipc/PDocAccessible.ipdl
+++ b/accessible/ipc/PDocAccessible.ipdl
@ -225,7 +225,7 @@ child:
  prio(high) sync MaxValue(uint64_t aID) returns(double aValue);
  prio(high) sync Step(uint64_t aID) returns(double aStep);

-  prio(high) sync TakeFocus(uint64_t aID);
+  async TakeFocus(uint64_t aID);
  prio(high) sync EmbeddedChildCount(uint64_t aID) returns(uint32_t aCount);
  prio(high) sync IndexOfEmbeddedChild(uint64_t aID, uint64_t aChildID)
    returns(uint32_t childIdx);
--- a/b2g/chrome/content/devtools/hud.js
+++ b/b2g/chrome/content/devtools/hud.js
@ -190,7 +190,7 @@ var developerHUD = {
 * metrics, and how to notify the front-end when metrics have changed.
 */
 function Target(frame, actor) {
-  this._frame = frame;
+  this.frame = frame;
  this.actor = actor;
  this.metrics = new Map();
  this._appName = null;
@ -198,15 +198,8 @@ function Target(frame, actor) {

 Target.prototype = {

-  get frame() {
-    let frame = this._frame;
-    let systemapp = document.querySelector('#systemapp');
-
-    return (frame === systemapp ? getContentWindow() : frame);
-  },
-
  get manifest() {
-    return this._frame.appManifestURL;
+    return this.frame.appManifestURL;
  },

  get appName() {
--- a/b2g/chrome/content/shell.js
+++ b/b2g/chrome/content/shell.js
@ -82,10 +82,6 @@ XPCOMUtils.defineLazyModuleGetter(this, "SafeMode",

 window.performance.measure('gecko-shell-jsm-loaded', 'gecko-shell-loadstart');

-function getContentWindow() {
-  return shell.contentBrowser.contentWindow;
-}
-
 function debug(str) {
  dump(' -*- Shell.js: ' + str + '\n');
 }
@ -388,7 +384,7 @@ var shell = {
    CaptivePortalLoginHelper.init();

    this.contentBrowser.src = homeURL;
-    this.isHomeLoaded = false;
+    this._isEventListenerReady = false;

    window.performance.mark('gecko-shell-system-frame-set');

@ -480,6 +476,13 @@ var shell = {
          this.contentBrowser.setVisible(true);
        }
        break;
+      case 'load':
+        if (content.document.location == 'about:blank') {
+          return;
+        }
+        content.removeEventListener('load', this, true);
+        this.notifyContentWindowLoaded();
+        break;
      case 'mozbrowserloadstart':
        if (content.document.location == 'about:blank') {
          this.contentBrowser.addEventListener('mozbrowserlocationchange', this, true);
@ -586,9 +589,12 @@ var shell = {
        break;
      case 'MozAfterPaint':
        window.removeEventListener('MozAfterPaint', this);
-        this.sendChromeEvent({
+        // This event should be sent before System app returns with
+        // system-message-listener-ready mozContentEvent, because it's on
+        // the critical launch path of the app.
+        SystemAppProxy._sendCustomEvent('mozChromeEvent', {
          type: 'system-first-paint'
-        });
+        }, /* noPending */ true);
        break;
      case 'unload':
        this.stop();
@ -610,6 +616,14 @@ var shell = {

  // Send an event to a specific window, document or element.
  sendEvent: function shell_sendEvent(target, type, details) {
+    if (target === this.contentBrowser) {
+      // We must ask SystemAppProxy to send the event in this case so
+      // that event would be dispatched from frame.contentWindow instead of
+      // on the System app frame.
+      SystemAppProxy._sendCustomEvent(type, details);
+      return;
+    }
+
    let doc = target.document || target.ownerDocument || target;
    let event = doc.createEvent('CustomEvent');
    event.initCustomEvent(type, true, true, details ? details : {});
@ -617,21 +631,10 @@ var shell = {
  },

  sendCustomEvent: function shell_sendCustomEvent(type, details) {
-    let target = getContentWindow();
-    let payload = details ? Cu.cloneInto(details, target) : {};
-    this.sendEvent(target, type, payload);
+    SystemAppProxy._sendCustomEvent(type, details);
  },

  sendChromeEvent: function shell_sendChromeEvent(details) {
-    if (!this.isHomeLoaded) {
-      if (!('pendingChromeEvents' in this)) {
-        this.pendingChromeEvents = [];
-      }
-
-      this.pendingChromeEvents.push(details);
-      return;
-    }
-
    this.sendCustomEvent("mozChromeEvent", details);
  },

@ -672,6 +675,7 @@ var shell = {
    this.contentBrowser.removeEventListener('mozbrowserlocationchange', this, true);

    let content = this.contentBrowser.contentWindow;
+    content.addEventListener('load', this, true);

    this.reportCrash(true);

@ -685,28 +689,7 @@ var shell = {
    Cu.import('resource://gre/modules/OperatorApps.jsm');
 #endif

-    content.addEventListener('load', function shell_homeLoaded() {
-      content.removeEventListener('load', shell_homeLoaded);
-      shell.isHomeLoaded = true;
-
-      if (Services.prefs.getBoolPref('b2g.orientation.animate')) {
-        Cu.import('resource://gre/modules/OrientationChangeHandler.jsm');
-      }
-
-#ifdef MOZ_WIDGET_GONK
-      libcutils.property_set('sys.boot_completed', '1');
-#endif
-
-      Services.obs.notifyObservers(null, "browser-ui-startup-complete", "");
-
-      SystemAppProxy.setIsReady();
-      if ('pendingChromeEvents' in shell) {
-        shell.pendingChromeEvents.forEach((shell.sendChromeEvent).bind(shell));
-      }
-      delete shell.pendingChromeEvents;
-    });
-
-    shell.handleCmdLine();
+    this.handleCmdLine();
  },

  handleCmdLine: function shell_handleCmdLine() {
@ -727,6 +710,38 @@ var shell = {
    }
 #endif
  },
+
+  // This gets called when window.onload fires on the System app content window,
+  // which means things in <html> are parsed and statically referenced <script>s
+  // and <script defer>s are loaded and run.
+  notifyContentWindowLoaded: function shell_notifyContentWindowLoaded() {
+#ifdef MOZ_WIDGET_GONK
+    libcutils.property_set('sys.boot_completed', '1');
+#endif
+
+    // This will cause Gonk Widget to remove boot animation from the screen
+    // and reveals the page.
+    Services.obs.notifyObservers(null, "browser-ui-startup-complete", "");
+
+    SystemAppProxy.setIsLoaded();
+  },
+
+  // This gets called when the content sends us system-message-listener-ready
+  // mozContentEvent, OR when an observer message tell us we should consider
+  // the content as ready.
+  notifyEventListenerReady: function shell_notifyEventListenerReady() {
+    if (this._isEventListenerReady) {
+      Cu.reportError('shell.js: SystemApp has already been declared as being ready.');
+      return;
+    }
+    this._isEventListenerReady = true;
+
+    if (Services.prefs.getBoolPref('b2g.orientation.animate')) {
+      Cu.import('resource://gre/modules/OrientationChangeHandler.jsm');
+    }
+
+    SystemAppProxy.setIsReady();
+  }
 };

 Services.obs.addObserver(function onFullscreenOriginChange(subject, topic, data) {
@ -734,11 +749,13 @@ Services.obs.addObserver(function onFullscreenOriginChange(subject, topic, data)
                          fullscreenorigin: data });
 }, "fullscreen-origin-change", false);

-DOMApplicationRegistry.registryStarted.then(function () {
-  shell.sendChromeEvent({ type: 'webapps-registry-start' });
-});
 DOMApplicationRegistry.registryReady.then(function () {
-  shell.sendChromeEvent({ type: 'webapps-registry-ready' });
+  // This event should be sent before System app returns with
+  // system-message-listener-ready mozContentEvent, because it's on
+  // the critical launch path of the app.
+  SystemAppProxy._sendCustomEvent('mozChromeEvent', {
+    type: 'webapps-registry-ready'
+  }, /* noPending */ true);
 });

 Services.obs.addObserver(function onBluetoothVolumeChange(subject, topic, data) {
@ -752,6 +769,10 @@ Services.obs.addObserver(function(subject, topic, data) {
  shell.sendCustomEvent('mozmemorypressure');
 }, 'memory-pressure', false);

+Services.obs.addObserver(function(subject, topic, data) {
+  shell.notifyEventListenerReady();
+}, 'system-message-listener-ready', false);
+
 var permissionMap = new Map([
  ['unknown', Services.perms.UNKNOWN_ACTION],
  ['allow', Services.perms.ALLOW_ACTION],
--- a/b2g/components/SystemAppProxy.jsm
+++ b/b2g/components/SystemAppProxy.jsm
@ -13,8 +13,10 @@ this.EXPORTED_SYMBOLS = ['SystemAppProxy'];

 var SystemAppProxy = {
  _frame: null,
+  _isLoaded: false,
  _isReady: false,
-  _pendingEvents: [],
+  _pendingLoadedEvents: [],
+  _pendingReadyEvents: [],
  _pendingListeners: [],

  // To call when a new system app iframe is created
@ -34,18 +36,38 @@ var SystemAppProxy = {
    return this._frame;
  },

+  // To call when the load event of the System app document is triggered.
+  // i.e. everything that is not lazily loaded are run and done.
+  setIsLoaded: function () {
+    if (this._isLoaded) {
+      Cu.reportError('SystemApp has already been declared as being loaded.');
+    }
+    this._isLoaded = true;
+
+    // Dispatch all events being queued while the system app was still loading
+    this._pendingLoadedEvents
+        .forEach(([type, details]) =>
+                 this._sendCustomEvent(type, details, true));
+    this._pendingLoadedEvents = [];
+  },
+
  // To call when it is ready to receive events
+  // i.e. when system-message-listener-ready mozContentEvent is sent.
  setIsReady: function () {
+    if (!this._isLoaded) {
+      Cu.reportError('SystemApp.setIsLoaded() should be called before setIsReady().');
+    }
+
    if (this._isReady) {
      Cu.reportError('SystemApp has already been declared as being ready.');
    }
    this._isReady = true;

-    // Dispatch all events being queued while the system app was still loading
-    this._pendingEvents
+    // Dispatch all events being queued while the system app was still not ready
+    this._pendingReadyEvents
        .forEach(([type, details]) =>
                 this._sendCustomEvent(type, details));
-    this._pendingEvents = [];
+    this._pendingReadyEvents = [];
  },

  /*
@ -62,6 +84,9 @@ var SystemAppProxy = {
   *   @param details   The event details.
   *   @param noPending Set to true to emit this event even before the system
   *                    app is ready.
+   *                    Event is always pending if the app is not loaded yet.
+   *
+   *   @returns event?  Dispatched event, or null if the event is pending.
   */
  _sendCustomEvent: function systemApp_sendCustomEvent(type,
                                                       details,
@ -69,10 +94,22 @@ var SystemAppProxy = {
                                                       target) {
    let content = this._frame ? this._frame.contentWindow : null;

+    // If the system app isn't loaded yet,
+    // queue events until someone calls setIsLoaded
+    if (!content || !this._isLoaded) {
+      if (noPending) {
+        this._pendingLoadedEvents.push([type, details]);
+      } else {
+        this._pendingReadyEvents.push([type, details]);
+      }
+
+      return null;
+    }
+
    // If the system app isn't ready yet,
    // queue events until someone calls setIsReady
-    if (!content || (!this._isReady && !noPending)) {
-      this._pendingEvents.push([type, details]);
+    if (!this._isReady && !noPending) {
+      this._pendingReadyEvents.push([type, details]);
      return null;
    }

@ -87,6 +124,10 @@ var SystemAppProxy = {
      payload = details ? Cu.cloneInto(details, content) : {};
    }

+    if ((target || content) === this._frame.contentWindow) {
+      dump('XXX FIXME : Dispatch a ' + type + ': ' + details.type + "\n");
+    }
+
    event.initCustomEvent(type, true, false, payload);
    (target || content).dispatchEvent(event);

--- a/b2g/components/test/mochitest/systemapp_helper.js
+++ b/b2g/components/test/mochitest/systemapp_helper.js
@ -27,10 +27,11 @@ function next() {
 // Listen for events received by the system app document
 // to ensure that we receive all of them, in an expected order and time
 var isLoaded = false;
+var isReady = false;
 var n = 0;
 function listener(event) {
  if (!isLoaded) {
-    assert.ok(false, "Received event before the iframe is ready");
+    assert.ok(false, "Received event before the iframe is loaded");
    return;
  }
  n++;
@ -41,16 +42,34 @@ function listener(event) {
    assert.equal(event.type, "custom");
    assert.equal(event.detail.name, "second");

-    next(); // call checkEventDispatching
+    next(); // call checkEventPendingBeforeLoad
  } else if (n == 3) {
+    if (!isReady) {
+      assert.ok(false, "Received event before the iframe is loaded");
+      return;
+    }
+
    assert.equal(event.type, "custom");
    assert.equal(event.detail.name, "third");
  } else if (n == 4) {
+    if (!isReady) {
+      assert.ok(false, "Received event before the iframe is loaded");
+      return;
+    }
+
    assert.equal(event.type, "mozChromeEvent");
    assert.equal(event.detail.name, "fourth");
+
+    next(); // call checkEventDispatching
  } else if (n == 5) {
    assert.equal(event.type, "custom");
    assert.equal(event.detail.name, "fifth");
+  } else if (n === 6) {
+    assert.equal(event.type, "mozChromeEvent");
+    assert.equal(event.detail.name, "sixth");
+  } else if (n === 7) {
+    assert.equal(event.type, "custom");
+    assert.equal(event.detail.name, "seventh");
    assert.equal(event.target, customEventTarget);

    next(); // call checkEventListening();
@ -72,8 +91,8 @@ var steps = [

  function earlyEvents() {
    // Immediately try to send events
-    SystemAppProxy.dispatchEvent({ name: "first" });
-    SystemAppProxy._sendCustomEvent("custom", { name: "second" });
+    SystemAppProxy._sendCustomEvent("mozChromeEvent", { name: "first" }, true);
+    SystemAppProxy._sendCustomEvent("custom", { name: "second" }, true);
    next();
  },

@ -110,7 +129,7 @@ var steps = [
      // Declare that the iframe is now loaded.
      // That should dispatch early events
      isLoaded = true;
-      SystemAppProxy.setIsReady();
+      SystemAppProxy.setIsLoaded();
      assert.ok(true, "Frame declared as loaded");

      let gotFrame = SystemAppProxy.getFrame();
@ -123,13 +142,24 @@ var steps = [
    frame.setAttribute("src", "data:text/html,system app");
  },

+  function checkEventPendingBeforeLoad() {
+    // Frame is loaded but not ready,
+    // these events should queue before the System app is ready.
+    SystemAppProxy._sendCustomEvent("custom", { name: "third" });
+    SystemAppProxy.dispatchEvent({ name: "fourth" });
+
+    isReady = true;
+    SystemAppProxy.setIsReady();
+    // Once this 4th event is received, we will run checkEventDispatching
+  },
+
  function checkEventDispatching() {
    // Send events after the iframe is ready,
    // they should be dispatched right away
-    SystemAppProxy._sendCustomEvent("custom", { name: "third" });
-    SystemAppProxy.dispatchEvent({ name: "fourth" });
-    SystemAppProxy._sendCustomEvent("custom", { name: "fifth" }, false, customEventTarget);
-    // Once this 5th event is received, we will run checkEventListening
+    SystemAppProxy._sendCustomEvent("custom", { name: "fifth" });
+    SystemAppProxy.dispatchEvent({ name: "sixth" });
+    SystemAppProxy._sendCustomEvent("custom", { name: "seventh" }, false, customEventTarget);
+    // Once this 7th event is received, we will run checkEventListening
  },

  function checkEventListening() {
--- a/b2g/config/aries/sources.xml
+++ b/b2g/config/aries/sources.xml
@ -15,7 +15,7 @@
  <project name="platform_build" path="build" remote="b2g" revision="8d83715f08b7849f16a0dfc88f78d5c3a89c0a54">
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
  <project name="fake-qemu-kernel" path="prebuilts/qemu-kernel" remote="b2g" revision="939b377d55a2f081d94029a30a75d05e5a20daf3"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
--- a/b2g/config/dolphin/sources.xml
+++ b/b2g/config/dolphin/sources.xml
@ -15,7 +15,7 @@
  <project name="platform_build" path="build" remote="b2g" revision="8d83715f08b7849f16a0dfc88f78d5c3a89c0a54">
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
  <project name="fake-qemu-kernel" path="prebuilts/qemu-kernel" remote="b2g" revision="939b377d55a2f081d94029a30a75d05e5a20daf3"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
--- a/b2g/config/emulator-ics/sources.xml
+++ b/b2g/config/emulator-ics/sources.xml
@ -19,7 +19,7 @@
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
  <project name="fake-dalvik" path="dalvik" remote="b2g" revision="ca1f327d5acc198bb4be62fa51db2c039032c9ce"/>
-  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
  <project name="rilproxy" path="rilproxy" remote="b2g" revision="5ef30994f4778b4052e58a4383dbe7890048c87e"/>
  <project name="platform_hardware_ril" path="hardware/ril" remote="b2g" revision="27eb2f04e149fc2c9976d881b1b5984bbe7ee089"/>
--- a/b2g/config/emulator-jb/sources.xml
+++ b/b2g/config/emulator-jb/sources.xml
@ -17,7 +17,7 @@
  </project>
  <project name="rilproxy" path="rilproxy" remote="b2g" revision="5ef30994f4778b4052e58a4383dbe7890048c87e"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
  <project name="moztt" path="external/moztt" remote="b2g" revision="828317e64d28138f24d578ab340c2a0ff8552df0"/>
  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="f004530b30a63c08a16d82536858600446b2abf5"/>
--- a/b2g/config/emulator-kk/sources.xml
+++ b/b2g/config/emulator-kk/sources.xml
@ -15,7 +15,7 @@
  <project name="platform_build" path="build" remote="b2g" revision="8d83715f08b7849f16a0dfc88f78d5c3a89c0a54">
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
  <project name="librecovery" path="librecovery" remote="b2g" revision="1b3591a50ed352fc6ddb77462b7b35d0bfa555a3"/>
--- a/b2g/config/emulator-l/sources.xml
+++ b/b2g/config/emulator-l/sources.xml
@ -15,7 +15,7 @@
  <project name="platform_build" path="build" remote="b2g" revision="c9d4fe680662ee44a4bdea42ae00366f5df399cf">
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
  <project name="librecovery" path="librecovery" remote="b2g" revision="1b3591a50ed352fc6ddb77462b7b35d0bfa555a3"/>
--- a/b2g/config/emulator/sources.xml
+++ b/b2g/config/emulator/sources.xml
@ -19,7 +19,7 @@
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
  <project name="fake-dalvik" path="dalvik" remote="b2g" revision="ca1f327d5acc198bb4be62fa51db2c039032c9ce"/>
-  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia.git" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
  <project name="rilproxy" path="rilproxy" remote="b2g" revision="5ef30994f4778b4052e58a4383dbe7890048c87e"/>
  <project name="platform_hardware_ril" path="hardware/ril" remote="b2g" revision="27eb2f04e149fc2c9976d881b1b5984bbe7ee089"/>
--- a/b2g/config/flame-kk/sources.xml
+++ b/b2g/config/flame-kk/sources.xml
@ -15,7 +15,7 @@
  <project name="platform_build" path="build" remote="b2g" revision="8d83715f08b7849f16a0dfc88f78d5c3a89c0a54">
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
  <project name="fake-qemu-kernel" path="prebuilts/qemu-kernel" remote="b2g" revision="939b377d55a2f081d94029a30a75d05e5a20daf3"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
--- a/b2g/config/gaia.json
+++ b/b2g/config/gaia.json
@ -1,9 +1,9 @@
 {
    "git": {
-        "git_revision": "4c0a6d4e8501368db8e5d6029a41db985ef1252a", 
+        "git_revision": "f345f6a015709beeb2ca3955cab077fcaa959d3b", 
        "remote": "https://git.mozilla.org/releases/gaia.git", 
        "branch": ""
    }, 
-    "revision": "61c5a1255e159b89caebf736d3c009a3778a5c42", 
+    "revision": "83e7fd1f9ab848025ef06f1283ad95fe5005f26c", 
    "repo_path": "integration/gaia-central"
 }
--- a/b2g/config/nexus-4-kk/sources.xml
+++ b/b2g/config/nexus-4-kk/sources.xml
@ -15,7 +15,7 @@
  <project name="platform_build" path="build" remote="b2g" revision="8d83715f08b7849f16a0dfc88f78d5c3a89c0a54">
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
  <project name="fake-qemu-kernel" path="prebuilts/qemu-kernel" remote="b2g" revision="939b377d55a2f081d94029a30a75d05e5a20daf3"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
--- a/b2g/config/nexus-4/sources.xml
+++ b/b2g/config/nexus-4/sources.xml
@ -18,7 +18,7 @@
  <project name="rilproxy" path="rilproxy" remote="b2g" revision="5ef30994f4778b4052e58a4383dbe7890048c87e"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
  <project name="fake-qemu-kernel" path="prebuilts/qemu-kernel" remote="b2g" revision="939b377d55a2f081d94029a30a75d05e5a20daf3"/>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
  <project name="moztt" path="external/moztt" remote="b2g" revision="828317e64d28138f24d578ab340c2a0ff8552df0"/>
  <project name="apitrace" path="external/apitrace" remote="apitrace" revision="f004530b30a63c08a16d82536858600446b2abf5"/>
--- a/b2g/config/nexus-5-l/sources.xml
+++ b/b2g/config/nexus-5-l/sources.xml
@ -15,7 +15,7 @@
  <project name="platform_build" path="build" remote="b2g" revision="c9d4fe680662ee44a4bdea42ae00366f5df399cf">
    <copyfile dest="Makefile" src="core/root.mk"/>
  </project>
-  <project name="gaia" path="gaia" remote="mozillaorg" revision="4c0a6d4e8501368db8e5d6029a41db985ef1252a"/>
+  <project name="gaia" path="gaia" remote="mozillaorg" revision="f345f6a015709beeb2ca3955cab077fcaa959d3b"/>
  <project name="fake-libdvm" path="dalvik" remote="b2g" revision="d50ae982b19f42f0b66d08b9eb306be81687869f"/>
  <project name="fake-qemu-kernel" path="prebuilts/qemu-kernel" remote="b2g" revision="939b377d55a2f081d94029a30a75d05e5a20daf3"/>
  <project name="gonk-misc" path="gonk-misc" remote="b2g" revision="9465d16f95ab87636b2ae07538ee88e5aeff2d7d"/>
--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@ -1880,6 +1880,9 @@ pref("privacy.trackingprotection.ui.enabled", false);
 pref("privacy.trackingprotection.introCount", 0);
 pref("privacy.trackingprotection.introURL", "https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/tracking-protection/start/");

+// Enable Contextual Identity Containers
+pref("privacy.userContext.enabled", false);
+
 #ifndef RELEASE_BUILD
 // At the moment, autostart.2 is used, while autostart.1 is unused.
 // We leave it here set to false to reset users' defaults and allow
--- a/browser/base/content/browser-menubar.inc
+++ b/browser/base/content/browser-menubar.inc
@ -11,12 +11,44 @@
                style="border:0px;padding:0px;margin:0px;-moz-appearance:none">
            <menu id="file-menu" label="&fileMenu.label;"
                  accesskey="&fileMenu.accesskey;">
-              <menupopup id="menu_FilePopup">
+              <menupopup id="menu_FilePopup"
+                         onpopupshowing="updateUserContextUIVisibility();">
                <menuitem id="menu_newNavigatorTab"
                          label="&tabCmd.label;"
                          command="cmd_newNavigatorTab"
                          key="key_newNavigatorTab"
                          accesskey="&tabCmd.accesskey;"/>
+                <menu id="menu_newUserContext"
+                      label="&newUserContext.label;"
+                      accesskey="&newUserContext.accesskey;"
+                      hidden="true">
+                  <menupopup>
+                    <menuitem id="menu_newUserContextTabPersonal"
+                              usercontextid="1"
+                              class="menuitem-iconic"
+                              label="&userContextPersonal.label;"
+                              command="Browser:NewUserContextTab"
+                              accesskey="&userContextPersonal.accesskey;"/>
+                    <menuitem id="menu_newUserContextTabWork"
+                              usercontextid="2"
+                              class="menuitem-iconic"
+                              label="&userContextWork.label;"
+                              command="Browser:NewUserContextTab"
+                              accesskey="&userContextWork.accesskey;"/>
+                    <menuitem id="menu_newUserContextTabBanking"
+                              usercontextid="3"
+                              class="menuitem-iconic"
+                              label="&userContextBanking.label;"
+                              command="Browser:NewUserContextTab"
+                              accesskey="&userContextBanking.accesskey;"/>
+                    <menuitem id="menu_newUserContextTabShopping"
+                              usercontextid="4"
+                              class="menuitem-iconic"
+                              label="&userContextShopping.label;"
+                              command="Browser:NewUserContextTab"
+                              accesskey="&userContextShopping.accesskey;"/>
+                  </menupopup>
+                </menu>
                <menuitem id="menu_newNavigator"
                          label="&newNavigatorCmd.label;"
                          accesskey="&newNavigatorCmd.accesskey;"
--- a/browser/base/content/browser-sets.inc
+++ b/browser/base/content/browser-sets.inc
@ -92,6 +92,7 @@
    <command id="cmd_gestureRotateEnd" oncommand="gGestureSupport.rotateEnd()"/>
    <command id="Browser:OpenLocation" oncommand="openLocation();"/>
    <command id="Browser:RestoreLastSession" oncommand="restoreLastSession();" disabled="true"/>
+    <command id="Browser:NewUserContextTab" oncommand="openNewUserContextTab(event.sourceEvent);" reserved="true"/>

    <command id="Tools:Search" oncommand="BrowserSearch.webSearch();"/>
    <command id="Tools:Downloads" oncommand="BrowserDownloadsUI();"/>
--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@ -4060,6 +4060,31 @@ function updateEditUIVisibility()
 #endif
 }

+/**
+ * Opens a new tab with the userContextId specified as an attribute of
+ * sourceEvent. This attribute is propagated to the top level originAttributes
+ * living on the tab's docShell.
+ *
+ * @param event
+ *        A click event on a userContext File Menu option
+ */
+function openNewUserContextTab(event)
+{
+  openUILinkIn(BROWSER_NEW_TAB_URL, "tab", {
+    userContextId: event.target.getAttribute('usercontextid'),
+  });
+}
+
+/**
+ * Updates File Menu User Context UI visibility depending on
+ * privacy.userContext.enabled pref state.
+ */
+function updateUserContextUIVisibility()
+{
+  let userContextEnabled = Services.prefs.getBoolPref("privacy.userContext.enabled");
+  document.getElementById("menu_newUserContext").hidden = !userContextEnabled;
+}
+
 /**
 * Makes the Character Encoding menu enabled or disabled as appropriate.
 * To be called when the View menu or the app menu is opened.
--- a/browser/base/content/tabbrowser.xml
+++ b/browser/base/content/tabbrowser.xml
@ -1415,6 +1415,7 @@
            var aSkipAnimation;
            var aForceNotRemote;
            var aNoReferrer;
+            var aUserContextId;
            if (arguments.length == 2 &&
                typeof arguments[1] == "object" &&
                !(arguments[1] instanceof Ci.nsIURI)) {
@ -1431,6 +1432,7 @@
              aSkipAnimation        = params.skipAnimation;
              aForceNotRemote       = params.forceNotRemote;
              aNoReferrer           = params.noReferrer;
+              aUserContextId        = params.userContextId;
            }

            var bgLoad = (aLoadInBackground != null) ? aLoadInBackground :
@ -1448,7 +1450,8 @@
                                  skipAnimation: aSkipAnimation,
                                  allowMixedContent: aAllowMixedContent,
                                  forceNotRemote: aForceNotRemote,
-                                  noReferrer: aNoReferrer });
+                                  noReferrer: aNoReferrer,
+                                  userContextId: aUserContextId });
            if (!bgLoad)
              this.selectedTab = tab;

@ -1690,6 +1693,7 @@
            let remote = aParams && aParams.remote;
            let uriIsAboutBlank = aParams && aParams.uriIsAboutBlank;
            let isPreloadBrowser = aParams && aParams.isPreloadBrowser;
+            let userContextId = aParams && aParams.userContextId;

            let b = document.createElementNS(NS_XUL, "browser");
            b.permanentKey = {};
@ -1699,6 +1703,9 @@
            b.setAttribute("contextmenu", this.getAttribute("contentcontextmenu"));
            b.setAttribute("tooltip", this.getAttribute("contenttooltip"));

+            if (userContextId)
+              b.setAttribute("usercontextid", userContextId);
+
            if (remote)
              b.setAttribute("remote", "true");

@ -1767,6 +1774,7 @@
            var aAllowMixedContent;
            var aForceNotRemote;
            var aNoReferrer;
+            var aUserContextId;
            if (arguments.length == 2 &&
                typeof arguments[1] == "object" &&
                !(arguments[1] instanceof Ci.nsIURI)) {
@ -1783,6 +1791,7 @@
              aAllowMixedContent    = params.allowMixedContent;
              aForceNotRemote       = params.forceNotRemote;
              aNoReferrer           = params.noReferrer;
+              aUserContextId        = params.userContextId;
            }

            // if we're adding tabs, we're past interrupt mode, ditch the owner
@ -1831,16 +1840,18 @@
            let b;
            let usingPreloadedContent = false;

-            // If we open a new tab with the newtab URL,
-            // check if there is a preloaded browser ready.
-            if (aURI == BROWSER_NEW_TAB_URL) {
+            // If we open a new tab with the newtab URL in the default
+            // userContext, check if there is a preloaded browser ready.
+            if (aURI == BROWSER_NEW_TAB_URL && !aUserContextId) {
              b = this._getPreloadedBrowser();
              usingPreloadedContent = !!b;
            }

            if (!b) {
              // No preloaded browser found, create one.
-              b = this._createBrowser({remote, uriIsAboutBlank});
+              b = this._createBrowser({remote: remote,
+                                       uriIsAboutBlank: uriIsAboutBlank,
+                                       userContextId: aUserContextId});
            }

            let notificationbox = this.getNotificationBox(b);
@ -2486,6 +2497,11 @@
            if (ourBrowser.isRemoteBrowser != otherBrowser.isRemoteBrowser)
              return;

+            // Keep the userContextId if set on other browser
+            if (otherBrowser.hasAttribute("usercontextid")) {
+              ourBrowser.setAttribute("usercontextid", otherBrowser.getAttribute("usercontextid"));
+            }
+
            // That's gBrowser for the other window, not the tab's browser!
            var remoteBrowser = aOtherTab.ownerDocument.defaultView.gBrowser;
            var isPending = aOtherTab.hasAttribute("pending");
--- a/browser/base/content/test/general/browser_beforeunload_duplicate_dialogs.js
+++ b/browser/base/content/test/general/browser_beforeunload_duplicate_dialogs.js
@ -18,6 +18,7 @@ function onTabModalDialogLoaded(node) {
  }
 }

+SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});

 // Listen for the dialog being created
 Services.obs.addObserver(onTabModalDialogLoaded, "tabmodal-dialog-loaded", false);
--- a/browser/base/content/test/general/browser_double_close_tab.js
+++ b/browser/base/content/test/general/browser_double_close_tab.js
@ -2,6 +2,8 @@
 const TEST_PAGE = "http://mochi.test:8888/browser/browser/base/content/test/general/file_double_close_tab.html";
 var testTab;

+SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});
+
 function waitForDialog(callback) {
  function onTabModalDialogLoaded(node) {
    Services.obs.removeObserver(onTabModalDialogLoaded, "tabmodal-dialog-loaded");
--- a/browser/base/content/test/general/browser_tabs_close_beforeunload.js
+++ b/browser/base/content/test/general/browser_tabs_close_beforeunload.js
@ -1,5 +1,7 @@
 "use strict";

+SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});
+
 const FIRST_TAB = getRootDirectory(gTestPath) + "close_beforeunload_opens_second_tab.html";
 const SECOND_TAB = getRootDirectory(gTestPath) + "close_beforeunload.html";

--- a/browser/base/content/utilityOverlay.js
+++ b/browser/base/content/utilityOverlay.js
@ -173,6 +173,7 @@ function whereToOpenLink( e, ignoreButton, ignoreAlt )
 *   skipTabAnimation     (boolean)
 *   allowPinnedTabHostChange (boolean)
 *   allowPopups          (boolean)
+ *   userContextId        (unsigned int)
 */
 function openUILinkIn(url, where, aAllowThirdPartyFixup, aPostData, aReferrerURI) {
  var params;
@ -216,6 +217,7 @@ function openLinkIn(url, where, params) {
  var aAllowPinnedTabHostChange = !!params.allowPinnedTabHostChange;
  var aNoReferrer           = params.noReferrer;
  var aAllowPopups          = !!params.allowPopups;
+  var aUserContextId        = params.userContextId;

  if (where == "save") {
    if (!aInitiatingDoc) {
@ -357,7 +359,8 @@ function openLinkIn(url, where, params) {
      relatedToCurrent: aRelatedToCurrent,
      skipAnimation: aSkipTabAnimation,
      allowMixedContent: aAllowMixedContent,
-      noReferrer: aNoReferrer
+      noReferrer: aNoReferrer,
+      userContextId: aUserContextId
    });
    break;
  }
--- a/browser/components/tabview/test/browser_tabview_bug599626.js
+++ b/browser/components/tabview/test/browser_tabview_bug599626.js
@ -6,6 +6,8 @@
 const TEST_URL = 'data:text/html,<script>window.onbeforeunload=' +
                 'function(e){e.returnValue="?"}</script>';

+SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});
+
 function test() {
  waitForExplicitFinish();
  showTabView(onTabViewShown);
--- a/browser/components/tabview/test/browser_tabview_bug626455.js
+++ b/browser/components/tabview/test/browser_tabview_bug626455.js
@ -15,6 +15,8 @@ const TEST_URL = 'data:text/html,<script>window.onbeforeunload=' +
 var contentWindow;
 var activeGroup;

+SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});
+
 Components.utils.import("resource://gre/modules/Promise.jsm", this);

 function test() {
--- a/browser/config/tooltool-manifests/linux32/clang.manifest
+++ b/browser/config/tooltool-manifests/linux32/clang.manifest
@ -1,10 +1,10 @@
 [
 {
-"clang_version": "r241406"
+"clang_version": "r247539"
 }, 
 {
-"size": 100307285, 
-"digest": "4d147d0072a928945fc1e938f39a5d0a9d3c676399c09e092c8750b2f973cdbbebda8d94d4d05805fae74a5c49c54263dc22b8b443c23c9a0ae830a261d3cf30", 
+"size": 93197192,
+"digest": "6ebd8994ac76cf6694c3d9054104219836f47578223c799cb9ba9669cfdee00112e9de56aea9d1e6d9d50ee94a201970555de19794b5fbb7546f58fdf8e59a99",
 "algorithm": "sha512", 
 "filename": "clang.tar.bz2",
 "unpack": true,
--- a/browser/config/tooltool-manifests/linux64/clang.manifest
+++ b/browser/config/tooltool-manifests/linux64/clang.manifest
@ -1,10 +1,10 @@
 [
 {
-"clang_version": "r241406"
+"clang_version": "r247539"
 }, 
 {
-"size": 83297360,
-"digest": "18e3deaf608b58a9153d647e1acbe6e93b7d6461bd4f86f24d13f4b6818b048a65063200d7acb100fa41eb5a7e66dfe6bdc89770c15c87e32a3e9a50d97094c6",
+"size": 93197192,
+"digest": "6ebd8994ac76cf6694c3d9054104219836f47578223c799cb9ba9669cfdee00112e9de56aea9d1e6d9d50ee94a201970555de19794b5fbb7546f58fdf8e59a99",
 "algorithm": "sha512",
 "filename": "clang.tar.xz",
 "unpack": true
--- a/browser/config/tooltool-manifests/linux64/clang.manifest.centos6
+++ b/browser/config/tooltool-manifests/linux64/clang.manifest.centos6
@ -1,10 +1,10 @@
 [
 {
-"clang_version": "r241406"
-},
+"clang_version": "r247539"
+}, 
 {
-"size": 83297360,
-"digest": "18e3deaf608b58a9153d647e1acbe6e93b7d6461bd4f86f24d13f4b6818b048a65063200d7acb100fa41eb5a7e66dfe6bdc89770c15c87e32a3e9a50d97094c6",
+"size": 93197192,
+"digest": "6ebd8994ac76cf6694c3d9054104219836f47578223c799cb9ba9669cfdee00112e9de56aea9d1e6d9d50ee94a201970555de19794b5fbb7546f58fdf8e59a99",
 "algorithm": "sha512",
 "filename": "clang.tar.xz",
 "unpack": true
--- a/browser/config/tooltool-manifests/macosx64/clang.manifest
+++ b/browser/config/tooltool-manifests/macosx64/clang.manifest
@ -1,12 +1,12 @@
 [
 {
-"clang_version": "r241406"
-}, 
+"clang_version": "r247539"
+},
 {
-"size": 86465808,
-"digest": "947eaaf11ac8cbe12e11b48c8b052721e018d31fb8ce20f8bf14b117b6623c56513b1422d8d9c8011bc0b0b985ef74d8f181e7200c6d7a05d79a1bce0d75ddee",
-"algorithm": "sha512", 
-"filename": "clang.tar.bz2",
+"size": 97314461,
+"digest": "9a74670fa917f760a4767923485d5166bbd258a8023c8aeb899b8c4d22f2847be76508ac5f26d7d2193318a2bb368a71bc62888d1bfe9d81eb45329a60451aa4",
+"algorithm": "sha512",
+"filename": "clang.tar.xz",
 "unpack": true
 },
 {
--- a/browser/config/tooltool-manifests/macosx64/cross-releng.manifest
+++ b/browser/config/tooltool-manifests/macosx64/cross-releng.manifest
@ -1,19 +1,12 @@
 [
 {
-"clang_version": "r241406"
+"clang_version": "r247539"
 }, 
 {
-"size": 100307285, 
-"digest": "4d147d0072a928945fc1e938f39a5d0a9d3c676399c09e092c8750b2f973cdbbebda8d94d4d05805fae74a5c49c54263dc22b8b443c23c9a0ae830a261d3cf30", 
-"algorithm": "sha512", 
-"filename": "clang.tar.bz2",
-"unpack": true
-},
-{
-"size": 80458572,
-"digest": "e5101f9dee1e462f6cbd3897ea57eede41d23981825c7b20d91d23ab461875d54d3dfc24999aa58a31e8b01f49fb3140e05ffe5af2957ef1d1afb89fd0dfe1ad",
-"algorithm": "sha512", 
-"filename": "gcc.tar.xz",
+"size": 93197192,
+"digest": "6ebd8994ac76cf6694c3d9054104219836f47578223c799cb9ba9669cfdee00112e9de56aea9d1e6d9d50ee94a201970555de19794b5fbb7546f58fdf8e59a99",
+"algorithm": "sha512",
+"filename": "clang.tar.xz",
 "unpack": true
 },
 {
--- a/browser/locales/en-US/chrome/browser/browser.dtd
+++ b/browser/locales/en-US/chrome/browser/browser.dtd
@ -308,6 +308,16 @@ These should match what Safari and other Apple applications use on OS X Lion. --

 <!ENTITY fileMenu.label         "File"> 
 <!ENTITY fileMenu.accesskey       "F">
+<!ENTITY newUserContext.label             "New Container Tab">
+<!ENTITY newUserContext.accesskey         "C">
+<!ENTITY userContextPersonal.label        "Personal">
+<!ENTITY userContextPersonal.accesskey    "P">
+<!ENTITY userContextWork.label            "Work">
+<!ENTITY userContextWork.accesskey        "W">
+<!ENTITY userContextBanking.label         "Banking">
+<!ENTITY userContextBanking.accesskey     "B">
+<!ENTITY userContextShopping.label        "Shopping">
+<!ENTITY userContextShopping.accesskey    "S">
 <!ENTITY newNavigatorCmd.label        "New Window">
 <!ENTITY newNavigatorCmd.key        "N">
 <!ENTITY newNavigatorCmd.accesskey      "N">
--- a/browser/locales/jar.mn
+++ b/browser/locales/jar.mn
@ -152,8 +152,15 @@
    locale/browser/syncQuota.properties         (%chrome/browser/syncQuota.properties)
 #endif
 % resource search-plugins chrome://browser/locale/searchplugins/
+# little trick to make the test below work
+#define en_US en-US
+#if AB_CD == en_US
+    locale/browser/searchplugins/list.txt       (%searchplugins/list.txt)
+    locale/browser/searchplugins/               (%searchplugins/*.xml)
+#else
    locale/browser/searchplugins/list.txt       (.deps/generated_@AB_CD@/list.txt)
    locale/browser/searchplugins/               (.deps/generated_@AB_CD@/*.xml)
+#endif
 % locale browser-region @AB_CD@ %locale/browser-region/
    locale/browser-region/region.properties        (%chrome/browser-region/region.properties)
 # the following files are browser-specific overrides
--- a/browser/modules/PluginContent.jsm
+++ b/browser/modules/PluginContent.jsm
@ -166,7 +166,7 @@ PluginContent.prototype = {
      pluginName = BrowserUtils.makeNicePluginName(pluginTag.name);

      // Convert this from nsIPluginTag so it can be serialized.
-      let properties = ["name", "description", "filename", "version", "enabledState"];
+      let properties = ["name", "description", "filename", "version", "enabledState", "niceName"];
      let pluginTagCopy = {};
      for (let prop of properties) {
        pluginTagCopy[prop] = pluginTag[prop];
@ -422,6 +422,7 @@ PluginContent.prototype = {
        break;

      case "PluginInstantiated":
+        Services.telemetry.getKeyedHistogramById('PLUGIN_ACTIVATION_COUNT').add(this._getPluginInfo(plugin).pluginTag.niceName);
        shouldShowNotification = true;
        break;
    }
--- a/browser/themes/linux/browser.css
+++ b/browser/themes/linux/browser.css
@ -1969,3 +1969,5 @@ chatbox {
 .browser-action-panel > .panel-arrowcontainer > .panel-arrowcontent {
  padding: 0;
 }
+
+%include ../shared/usercontext/usercontext.inc.css
--- a/browser/themes/linux/jar.mn
+++ b/browser/themes/linux/jar.mn
@ -142,6 +142,10 @@ browser.jar:
  skin/classic/browser/tabview/stack-expander.png     (tabview/stack-expander.png)
  skin/classic/browser/tabview/tabview.png            (tabview/tabview.png)
  skin/classic/browser/tabview/tabview.css            (tabview/tabview.css)
+  skin/classic/browser/usercontext/personal.svg       (../shared/usercontext/personal.svg)
+  skin/classic/browser/usercontext/work.svg           (../shared/usercontext/work.svg)
+  skin/classic/browser/usercontext/banking.svg        (../shared/usercontext/banking.svg)
+  skin/classic/browser/usercontext/shopping.svg       (../shared/usercontext/shopping.svg)
 #ifdef MOZ_SERVICES_SYNC
  skin/classic/browser/sync-16.png
  skin/classic/browser/sync-32.png
--- a/browser/themes/osx/browser.css
+++ b/browser/themes/osx/browser.css
@ -3655,3 +3655,5 @@ window > chatbox {
 .browser-action-panel > .panel-arrowcontainer > .panel-arrowcontent {
  padding: 0;
 }
+
+%include ../shared/usercontext/usercontext.inc.css
--- a/browser/themes/osx/jar.mn
+++ b/browser/themes/osx/jar.mn
@ -229,6 +229,10 @@ browser.jar:
  skin/classic/browser/tabview/stack-expander.png           (tabview/stack-expander.png)
  skin/classic/browser/tabview/tabview.png                  (tabview/tabview.png)
  skin/classic/browser/tabview/tabview.css                  (tabview/tabview.css)
+  skin/classic/browser/usercontext/personal.svg             (../shared/usercontext/personal.svg)
+  skin/classic/browser/usercontext/work.svg                 (../shared/usercontext/work.svg)
+  skin/classic/browser/usercontext/banking.svg              (../shared/usercontext/banking.svg)
+  skin/classic/browser/usercontext/shopping.svg             (../shared/usercontext/shopping.svg)
 #ifdef MOZ_SERVICES_SYNC
  skin/classic/browser/sync-16.png
  skin/classic/browser/sync-32.png
--- a/browser/themes/shared/usercontext/banking.svg
+++ b/browser/themes/shared/usercontext/banking.svg
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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="32" height="32" viewBox="0 0 32 32">
+  <path fill="#7dc14c" d="M17.3857868,14.0527919 C14.2304569,13.0862944 13.4913706,12.4609137 13.4913706,11.0964467 C13.4913706,9.61827411 14.7137056,8.85076142 16.4192893,8.85076142 C17.9827411,8.85076142 19.3187817,9.33401015 20.5979695,10.4994924 L22.4456853,8.42436548 C21.1664975,7.20203046 19.3187819,6.26535905 17,6.00952148 L17,2 L15,2 L15,6.00952148 C12.3827412,6.43591742 9.76751269,8.53807107 9.76751269,11.3238579 C9.76751269,14.1664975 11.4730964,15.786802 15.4812183,17.0091371 C18.4375635,17.9187817 19.2335025,18.6294416 19.2335025,20.2213198 C19.2335025,22.0690355 17.7553299,23.035533 15.7370558,23.035533 C13.7756345,23.035533 12.2406091,22.3248731 10.9329949,21.1025381 L9,23.2345178 C10.4213198,24.6274112 12.8659899,25.8324934 15,26.0030518 L15,30 L17,30 L17,26.0030518 C20.7116753,25.4060974 22.9857868,22.893401 22.9857868,20.022335 C22.9857868,16.4690355 20.7116751,15.1045685 17.3857868,14.0527919 Z"/>
+</svg>
--- a/browser/themes/shared/usercontext/personal.svg
+++ b/browser/themes/shared/usercontext/personal.svg
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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="32" height="32" viewBox="0 0 32 32">
+  <path fill="#00a7e0" d="M7.17741905,12 C7.10965537,12 7.041327,11.9953181 6.97243393,11.985018 C6.33263187,11.8918489 5.90515601,11.3862071 6.01809547,10.8552833 C7.41798011,4.26321358 12.2613889,2.57493207 15.0238882,2.15590491 C19.6448063,1.45690206 24.3408291,3.21541158 25.8344535,5.29743816 C26.1664955,5.76047488 25.9835336,6.35881757 25.4244832,6.63364321 C24.8654329,6.9098734 24.1437497,6.75583996 23.8122724,6.29327142 C22.8923805,5.01043967 19.1749781,3.51130562 15.4479759,4.07406612 C12.8080159,4.474834 9.43056132,6.03623689 8.33561323,11.1942506 C8.23453242,11.666651 7.73816348,12 7.17741905,12 Z M16.63127,26 C16.1452186,26 15.6509104,25.9658335 15.147795,25.8938767 C10.637921,25.257137 6.71207921,21.8114952 6.01575422,17.8807924 C5.91171832,17.2932317 6.33391695,16.7382846 6.95813239,16.6404441 C7.58454965,16.5343208 8.17298555,16.9406954 8.27757192,17.5272206 C8.80876054,20.5255916 11.9766264,23.26409 15.4885263,23.7610576 C17.3975027,24.02766 20.959494,23.8221432 23.3220449,19.3789425 C24.4625867,17.2331815 23.0049831,11.881462 19.9521622,9.34692739 C18.2380468,7.92384005 16.4573263,7.76905536 14.6628445,8.89499751 C13.26469,9.77142052 11.8070864,12.2857658 11.8665355,14.6287608 C11.9127737,16.4835887 12.8386382,17.9325598 14.6171568,18.9363308 C15.2210054,19.2764429 16.9411759,19.4933486 17.9424527,18.8296898 C18.7257495,18.3104622 18.9591422,17.2761485 18.6365758,15.7583267 C18.3822659,14.5650869 17.2219077,12.4452096 16.6664991,12.3711821 C16.6692513,12.3722175 16.4666841,12.4312324 16.1276041,12.9095636 C15.8545786,13.2936782 15.58981,14.7297074 15.9476054,15.3581643 C16.0142104,15.4761941 16.0725586,15.5465978 16.3202632,15.5465978 C16.9532859,15.5465978 17.46686,16.0290705 17.46686,16.6249139 C17.46686,17.2207573 16.9543868,17.7042653 16.3213641,17.7042653 C15.2644914,17.7042653 14.4140391,17.2336992 13.9268868,16.3774655 C13.1083609,14.9388479 13.5536787,12.6548678 14.2202791,11.7137354 C15.2540327,10.2564816 16.3631986,10.1151564 17.1123672,10.2564816 C19.7066595,10.7389543 20.8763754,15.2908666 20.8857331,15.3359043 C21.5303153,18.3648181 20.3594985,19.8665919 19.264094,20.593407 C17.4151172,21.8192603 14.6920186,21.493643 13.4380832,20.7859819 C10.3280151,19.0310652 9.62013053,16.497566 9.5744428,14.6805283 C9.49022326,11.3643051 11.4779146,8.30018945 13.391845,7.10021984 C16.0417332,5.43848454 18.9877658,5.66781436 21.4714167,7.72919442 C25.1176276,10.7565552 27.0871539,17.1229168 25.3746898,20.3433702 C23.4326862,23.9950465 20.2983981,26 16.63127,26 Z M16.0845157,30 C14.9348455,30 13.9050564,29.8557557 13.0394288,29.6610017 C10.2114238,29.0257442 7.58700058,27.4599412 6.18892823,25.5735955 C5.84440518,25.1078371 5.98426642,24.4803503 6.50105099,24.1700066 C7.01675554,23.8596629 7.71552172,23.986423 8.06112477,24.4507244 C9.89498097,26.9252176 15.9397944,29.9781448 22.2508301,26.1937972 C22.7676147,25.8844249 23.4658409,26.0087566 23.8109039,26.474515 C24.155427,26.9397877 24.0161057,27.5672745 23.4993212,27.8776182 C20.7987573,29.4963593 18.2315746,30 16.0845157,30 Z"/>
+</svg>
--- a/browser/themes/shared/usercontext/shopping.svg
+++ b/browser/themes/shared/usercontext/shopping.svg
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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="32" height="32" viewBox="0 0 32 32">
+  <path fill="#ee5195" fill-rule="evenodd" d="M20.8195396,14 L15.1804604,14 L15.1804604,14 L15.8471271,18 L20.1528729,18 L20.8195396,14 Z M22.8471271,14 L27.6125741,14 L27.6125741,14 L26.2792408,18 L22.1804604,18 L22.8471271,14 Z M21.1528729,12 L14.8471271,12 L14.8471271,12 L14.1804604,8 L21.8195396,8 L21.1528729,12 Z M23.1804604,12 L28.2792408,12 L28.2792408,12 L29.6125741,8 L23.8471271,8 L23.1804604,12 Z M13.1528729,14 L8.47703296,14 L10.077033,18 L10.077033,18 L13.8195396,18 L13.1528729,14 Z M12.8195396,12 L7.67703296,12 L6.07703296,8 L12.1528729,8 L12.8195396,12 L12.8195396,12 Z M31.7207592,8 L32,8 L32,6 L31,6 L5.27703296,6 L5.27703296,6 L4,2.8074176 L4,2 L3,2 L1,2 L0,2 L0,4 L1,4 L2.32296704,4 L9.78931928,22.6658806 L9.78931928,22.6658806 C8.71085924,23.3823847 8,24.6081773 8,26 C8,28.209139 9.790861,30 12,30 C14.209139,30 16,28.209139 16,26 C16,25.2714257 15.8052114,24.5883467 15.4648712,24 L22.5351288,24 C22.1947886,24.5883467 22,25.2714257 22,26 C22,28.209139 23.790861,30 26,30 C28.209139,30 30,28.209139 30,26 C30,23.790861 28.209139,22 26,22 L11.677033,22 L10.877033,20 L27,20 L28,20 L28,19.1622777 L31.7207592,8 L31.7207592,8 Z M26,28 C27.1045695,28 28,27.1045695 28,26 C28,24.8954305 27.1045695,24 26,24 C24.8954305,24 24,24.8954305 24,26 C24,27.1045695 24.8954305,28 26,28 Z M12,28 C13.1045695,28 14,27.1045695 14,26 C14,24.8954305 13.1045695,24 12,24 C10.8954305,24 10,24.8954305 10,26 C10,27.1045695 10.8954305,28 12,28 Z"/>
+</svg>
--- a/browser/themes/shared/usercontext/usercontext.inc.css
+++ b/browser/themes/shared/usercontext/usercontext.inc.css
@ -0,0 +1,17 @@
+/* User Context UI browser styles */
+
+#menu_newUserContextTabPersonal {
+  list-style-image: url("chrome://browser/skin/usercontext/personal.svg");
+}
+
+#menu_newUserContextTabWork {
+  list-style-image: url("chrome://browser/skin/usercontext/work.svg");
+}
+
+#menu_newUserContextTabBanking {
+  list-style-image: url("chrome://browser/skin/usercontext/banking.svg");
+}
+
+#menu_newUserContextTabShopping {
+  list-style-image: url("chrome://browser/skin/usercontext/shopping.svg");
+}
--- a/browser/themes/shared/usercontext/work.svg
+++ b/browser/themes/shared/usercontext/work.svg
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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="32" height="32" viewBox="0 0 32 32">
+  <path fill="#f89c24" fill-rule="evenodd" d="M22,9.99887085 L21.635468,10 L29.0034652,10 C29.5538362,10 30,10.4449463 30,10.9933977 L30,27.0066023 C30,27.5552407 29.5601869,28 29.0034652,28 L2.99653482,28 C2.44616384,28 2,27.5550537 2,27.0066023 L2,10.9933977 C2,10.4447593 2.43981314,10 2.99653482,10 L8,10 L8,7.99922997 C8,5.79051625 10.0426627,4 12.5635454,4 L19.4364546,4 C21.9568311,4 24,5.79246765 24,7.99922997 L24,9.99267578 L22,9.99887085 L22,10 L10,10 L10,7.99922997 C10,6.89421235 11.0713286,6 12.3917227,6 L19.6082773,6 C20.9273761,6 22,6.89552665 22,7.99922997 L22,9.99887085 Z"/>
+</svg>
--- a/browser/themes/windows/browser.css
+++ b/browser/themes/windows/browser.css
@ -2842,3 +2842,5 @@ chatbox {
 .browser-action-panel > .panel-arrowcontainer > .panel-arrowcontent {
  padding: 0;
 }
+
+%include ../shared/usercontext/usercontext.inc.css
--- a/browser/themes/windows/jar.mn
+++ b/browser/themes/windows/jar.mn
@ -254,6 +254,10 @@ browser.jar:
  skin/classic/browser/tabview/tabview.png                    (tabview/tabview.png)
  skin/classic/browser/tabview/tabview-inverted.png           (tabview/tabview-inverted.png)
  skin/classic/browser/tabview/tabview.css                    (tabview/tabview.css)
+  skin/classic/browser/usercontext/personal.svg               (../shared/usercontext/personal.svg)
+  skin/classic/browser/usercontext/work.svg                   (../shared/usercontext/work.svg)
+  skin/classic/browser/usercontext/banking.svg                (../shared/usercontext/banking.svg)
+  skin/classic/browser/usercontext/shopping.svg               (../shared/usercontext/shopping.svg)
 #ifdef MOZ_SERVICES_SYNC
  skin/classic/browser/sync-16.png
  skin/classic/browser/sync-32.png
--- a/build/autoconf/clang-plugin.m4
+++ b/build/autoconf/clang-plugin.m4
@ -39,7 +39,7 @@ if test -n "$ENABLE_CLANG_PLUGIN"; then
    LLVM_LDFLAGS=`$LLVMCONFIG --system-libs | xargs`
    LLVM_LDFLAGS="$LLVM_LDFLAGS `$LLVMCONFIG --ldflags --libs core mc analysis asmparser mcparser bitreader option | xargs`"

-    if test "${OS_ARCH}" = "Darwin"; then
+    if test "${HOST_OS_ARCH}" = "Darwin"; then
        CLANG_LDFLAGS="-lclangFrontend -lclangDriver -lclangSerialization"
        CLANG_LDFLAGS="$CLANG_LDFLAGS -lclangParse -lclangSema -lclangAnalysis"
        CLANG_LDFLAGS="$CLANG_LDFLAGS -lclangEdit -lclangAST -lclangLex"
--- a/build/autoconf/config.status.m4
+++ b/build/autoconf/config.status.m4
@ -222,3 +222,15 @@ MOZ_RUN_CONFIG_STATUS()],
 define([AC_CONFIG_HEADER],
 [m4_fatal([Use CONFIGURE_DEFINE_FILES in moz.build files to produce header files.])
 ])
+
+define([MOZ_BUILD_BACKEND],
+[
+BUILD_BACKENDS="RecursiveMake"
+
+MOZ_ARG_ENABLE_STRING(build-backend,
+[  --enable-build-backend={AndroidEclipse,CppEclipse,VisualStudio,FasterMake,CompileDB}
+                         Enable additional build backends],
+[ BUILD_BACKENDS="RecursiveMake `echo $enableval | sed 's/,/ /g'`"])
+
+AC_SUBST_LIST([BUILD_BACKENDS])
+])
--- a/build/clang-plugin/Makefile.in
+++ b/build/clang-plugin/Makefile.in
@ -14,6 +14,17 @@ OS_COMPILE_CXXFLAGS :=
 OS_LDFLAGS := $(LLVM_LDFLAGS) $(CLANG_LDFLAGS)
 DSO_LDOPTS := -shared

+ifeq ($(HOST_OS_ARCH)_$(OS_ARCH),Linux_Darwin)
+# Use the host compiler instead of the target compiler.
+CXX := $(HOST_CXX)
+# expandlibs doesn't know the distinction between host and target toolchains,
+# and on cross linux/darwin builds, the options to give to the linker for file
+# lists differ between both, so don't use file lists.
+EXPAND_MKSHLIB_ARGS :=
+# Don't pass OSX linker arguments.
+MOZ_FIX_LINK_PATHS :=
+endif
+
 # Use the default OS X deployment target to enable using the libc++ headers
 # correctly.  Note that the binary produced here is a host tool and doesn't need
 # to be distributed.
--- a/build/clang-plugin/moz.build
+++ b/build/clang-plugin/moz.build
@ -13,6 +13,11 @@ SOURCES += [
 DISABLE_STL_WRAPPING = True
 NO_VISIBILITY_FLAGS = True

+# libc++ is required to build plugins against clang on OS X.
+if CONFIG['HOST_OS_ARCH'] == 'Darwin':
+    CXXFLAGS += ['-stdlib=libc++']
+    LDFLAGS += ['-lc++']
+
 DIRS += [
    'tests',
 ]
--- a/build/mach_bootstrap.py
+++ b/build/mach_bootstrap.py
@ -131,6 +131,7 @@ MACH_MODULES = [
    'python/mozbuild/mozbuild/mach_commands.py',
    'python/mozbuild/mozbuild/backend/mach_commands.py',
    'python/mozbuild/mozbuild/compilation/codecomplete.py',
+    'python/mozbuild/mozbuild/compilation/database.py',
    'python/mozbuild/mozbuild/frontend/mach_commands.py',
    'services/common/tests/mach_commands.py',
    'testing/luciddream/mach_commands.py',
--- a/build/macosx/cross-mozconfig.common
+++ b/build/macosx/cross-mozconfig.common
@ -38,10 +38,9 @@ export OTOOL=${TOOLCHAIN_PREFIX}otool
 export GENISOIMAGE=$topsrcdir/genisoimage/genisoimage
 export DMG_TOOL=$topsrcdir/dmg/dmg

-# The system gcc installed on CentOS 6 is 4.4, which our
-# build system rejects.
-export HOST_CC="$topsrcdir/gcc/bin/gcc"
-export HOST_CXX="$topsrcdir/gcc/bin/g++"
+export HOST_CC="$topsrcdir/clang/bin/clang"
+export HOST_CXX="$topsrcdir/clang/bin/clang++"
+export HOST_CPP="$topsrcdir/clang/bin/clang -E"
 export HOST_LDFLAGS="-g"

 ac_add_options --target=x86_64-apple-darwin
--- a/build/unix/build-clang/clang-trunk.json
+++ b/build/unix/build-clang/clang-trunk.json
@ -1,5 +1,5 @@
 {
-    "llvm_revision": "241406",
+    "llvm_revision": "247539",
    "llvm_repo": "https://llvm.org/svn/llvm-project/llvm/trunk",
    "clang_repo": "https://llvm.org/svn/llvm-project/cfe/trunk",
    "compiler_repo": "https://llvm.org/svn/llvm-project/compiler-rt/trunk",
--- a/config/Makefile.in
+++ b/config/Makefile.in
@ -45,7 +45,9 @@ ifndef JS_STANDALONE
 ifndef MOZ_PROFILE_USE
 # Generate a new buildid every time we "export" in config... that's only
 # supposed to be once per-build!
-export::
+export:: buildid
+
+buildid: FORCE
 ifdef MOZ_BUILD_DATE
 	printf '%s' $(MOZ_BUILD_DATE) > buildid
 else
--- a/config/faster/rules.mk
+++ b/config/faster/rules.mk
@ -0,0 +1,209 @@
+# 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/.
+
+# /!\ Please make sure to update the following comment when you touch this
+# file. Thank you /!\
+
+# The traditional Mozilla build system relied on going through the entire
+# build tree a number of times with different targets, and many of the
+# things happening at each step required other things happening in previous
+# steps without any documentation of those dependencies.
+#
+# This new build system tries to start afresh by establishing what files or
+# operations are needed for the build, and applying the necessary rules to
+# have those in place, relying on make dependencies to get them going.
+#
+# As of writing, only building non-compiled parts of Firefox is supported
+# here (a few other things are also left out). This is a starting point, with
+# the intent to grow this build system to make it more complete.
+#
+# This file contains rules and dependencies to get things working. The intent
+# is for a Makefile to define some dependencies and variables, and include
+# this file. What needs to be defined there, and ends up being generated by
+# python/mozbuild/mozbuild/backend/fastermake.py is the following:
+# - TOPSRCDIR/TOPOBJDIR, respectively the top source directory and the top
+#   object directory
+# - PYTHON, the path to the python executable
+# - ACDEFINES, which contains a set of -Dvar=name to be used during
+#   preprocessing
+# - MOZ_CHROME_FILE_FORMAT, which defines whether to use file copies or
+#   symbolic links
+# - JAR_MN_TARGETS, which defines the targets to use for jar manifest
+#   processing, see further below
+# - PP_TARGETS, which defines the file paths of preprocessed files, see
+#   further below
+# - INSTALL_MANIFESTS, which defines the list of base directories handled
+#   by install manifests, see further below
+# - MANIFEST_TARGETS, which defines the file paths of chrome manifests, see
+#   further below
+#
+# A convention used between this file and the Makefile including it is that
+# global Make variables names are uppercase, while "local" Make variables
+# applied to specific targets are lowercase.
+
+# Targets to be triggered for a default build
+default: $(addprefix install-,$(INSTALL_MANIFESTS))
+default: $(addprefix jar-,$(JAR_MN_TARGETS))
+
+# Explicit files to be built for a default build
+default: $(addprefix $(TOPOBJDIR)/,$(PP_TARGETS))
+default: $(addprefix $(TOPOBJDIR)/,$(MANIFEST_TARGETS))
+default: $(TOPOBJDIR)/dist/bin/greprefs.js
+default: $(TOPOBJDIR)/dist/bin/platform.ini
+default: $(TOPOBJDIR)/dist/bin/webapprt/webapprt.ini
+
+.PHONY: FORCE
+
+# Extra define to trigger some workarounds. We should strive to limit the
+# use of those. As of writing the only one is in
+# toolkit/content/buildconfig.html.
+ACDEFINES += -DBUILD_FASTER
+
+# Generic rule to fall back to the recursive make backend
+$(TOPOBJDIR)/%: FORCE
+	$(MAKE) -C $(dir $@) $(notdir $@)
+
+# Files under the faster/ sub-directory, however, are not meant to use the
+# fallback
+$(TOPOBJDIR)/faster/%: ;
+
+# And files under dist/ are meant to be copied from their first dependency
+# if there is no other rule.
+$(TOPOBJDIR)/dist/%:
+	rm -f $@
+	cp $< $@
+
+# Install files using install manifests
+#
+# The list of base directories is given in INSTALL_MANIFESTS. The
+# corresponding install manifests are named correspondingly, with forward
+# slashes replaced with underscores, and prefixed with `install_`. That is,
+# the install manifest for `dist/bin` would be `install_dist_bin`.
+$(addprefix install-,$(INSTALL_MANIFESTS)): install-%:
+	$(PYTHON) -m mozbuild.action.process_install_manifest \
+		--no-remove \
+		--no-remove-empty-directories \
+		$(TOPOBJDIR)/$* \
+		install_$(subst /,_,$*)
+
+# Preprocessed files. Ideally they would be using install manifests but
+# right now, it's not possible because of things like APP_BUILDID or
+# nsURLFormatter.js.
+# Things missing:
+# - XULPPFLAGS
+#
+# The list of preprocessed files is defined in PP_TARGETS. The list is
+# relative to TOPOBJDIR.
+# The source file for each of those preprocessed files is defined as a Make
+# dependency for the $(TOPOBJDIR)/path target. For example:
+#   PP_TARGETS = foo/bar
+#   $(TOPOBJDIR)/foo/bar: /path/to/source/for/foo/bar.in
+# The file name for the source doesn't need to be different.
+# Additionally, extra defines can be specified for a given preprocessing
+# by setting the `defines` variable specifically for the given target.
+# For example:
+#   $(TOPOBJDIR)/foo/bar: defines = -Dqux=foobar
+$(addprefix $(TOPOBJDIR)/,$(PP_TARGETS)): Makefile
+$(addprefix $(TOPOBJDIR)/,$(PP_TARGETS)): $(TOPOBJDIR)/%:
+	$(PYTHON) -m mozbuild.action.preprocessor \
+		--depend $(TOPOBJDIR)/faster/.deps/$(subst /,_,$*) \
+		-DAB_CD=en-US \
+		$(defines) \
+		$(ACDEFINES) \
+		$< \
+		-o $@
+
+# Include the dependency files from the above preprocessed files rule.
+$(foreach pp_target,$(PP_TARGETS), \
+	$(eval -include $(TOPOBJDIR)/faster/.deps/$(subst /,_,$(pp_target))))
+
+# Install files from jar manifests. Ideally, they would be using install
+# manifests, but the code to read jar manifests and emit appropriate
+# install manifests is not there yet.
+# Things missing:
+# - XULPPFLAGS
+# - DEFINES from config/config.mk
+# - L10N
+# - -e when USE_EXTENSION_MANIFEST is set in moz.build
+#
+# The list given in JAR_MN_TARGETS corresponds to the list of `jar-%` targets
+# to be processed, with the `jar-` prefix stripped.
+# The Makefile is expected to specify the source jar manifest as a dependency
+# to each target. There is no expectation that the `jar-%` target name matches
+# the source file name in any way. For example:
+#   JAR_MN_TARGETS = foo
+#   jar-foo: /path/to/some/jar.mn
+# Additionally, extra defines can be specified for the processing of the jar
+# manifest by settig the `defines` variable specifically for the given target.
+# For example:
+#   jar-foo: defines = -Dqux=foo
+# The default base path where files are going to be installed is `dist/bin`.
+# It is possible to use a different path by setting the `install_target`
+# variable. For example:
+#   jar-foo: install_target = dist/bin/foo
+# When processing jar manifests, relative paths given inside a jar manifest
+# can be resolved from an object directory. The default path for that object
+# directory is the translation of the jar manifest directory path from the
+# source directory to the object directory. That is, for
+# $(TOPSRCDIR)/path/to/jar.mn, the default would be $(TOPOBJDIR)/path/to.
+# In case a different path must be used for the object directory, the `objdir`
+# variable can be set. For example:
+#   jar-foo: objdir=/some/other/path
+jar-%: objdir ?= $(dir $(patsubst $(TOPSRCDIR)%,$(TOPOBJDIR)%,$<))
+jar-%: install_target ?= dist/bin
+jar-%:
+	cd $(objdir) && \
+	$(PYTHON) -m mozbuild.action.jar_maker \
+		-j $(TOPOBJDIR)/$(install_target)/chrome \
+		-t $(TOPSRCDIR) \
+		-f $(MOZ_CHROME_FILE_FORMAT) \
+		-c $(dir $<)/en-US \
+		-DAB_CD=en-US \
+		$(defines) \
+		$(ACDEFINES) \
+		$<
+
+# Create some chrome manifests
+# This rule is forced to run every time because it may be updating files that
+# already exit.
+#
+# The list of chrome manifests is given in MANIFEST_TARGETS, relative to the
+# top object directory. The content for those manifests is given in the
+# `content` variable associated with the target. For example:
+#   MANIFEST_TARGETS = foo
+#   $(TOPOBJDIR)/foo: content = "manifest foo.manifest" "manifest bar.manifest"
+$(addprefix $(TOPOBJDIR)/,$(MANIFEST_TARGETS)): FORCE
+	$(PYTHON) -m mozbuild.action.buildlist \
+		$@ \
+		$(content)
+
+# ============================================================================
+# Below is a set of additional dependencies and variables used to build things
+# that are not supported by data in moz.build.
+
+# GENERATED_FILES are not supported yet, and even if they were, the
+# dependencies are missing information.
+$(foreach p,linux osx windows,jar-browser-themes-$(p)-jar.mn): \
+jar-browser-themes-%-jar.mn: \
+	$(TOPOBJDIR)/browser/themes/%/tab-selected-end.svg \
+	$(TOPOBJDIR)/browser/themes/%/tab-selected-start.svg
+
+# These files are manually generated from
+# toolkit/components/urlformatter/Makefile.in and are force-included so that
+# the corresponding defines don't end up in the command lines.
+KEYS = mozilla_api_key google_api_key google_oauth_api_key bing_api_key
+$(TOPOBJDIR)/dist/bin/components/nsURLFormatter.js: \
+	$(addprefix $(TOPOBJDIR)/toolkit/components/urlformatter/, $(KEYS))
+$(TOPOBJDIR)/dist/bin/components/nsURLFormatter.js: defines += \
+	$(addprefix -I $(TOPOBJDIR)/toolkit/components/urlformatter/,$(KEYS))
+
+# Extra dependencies and/or definitions for preprocessed files.
+$(TOPOBJDIR)/dist/bin/application.ini: $(TOPOBJDIR)/config/buildid
+$(TOPOBJDIR)/dist/bin/application.ini: defines += \
+	-DAPP_BUILDID=$(shell cat $(TOPOBJDIR)/config/buildid)
+
+# Files to build with the recursive backend and simply copy
+$(TOPOBJDIR)/dist/bin/greprefs.js: $(TOPOBJDIR)/modules/libpref/greprefs.js
+$(TOPOBJDIR)/dist/bin/platform.ini: $(TOPOBJDIR)/toolkit/xre/platform.ini
+$(TOPOBJDIR)/dist/bin/webapprt/webapprt.ini: $(TOPOBJDIR)/webapprt/webapprt.ini
--- a/config/glibcversion.sh
+++ b/config/glibcversion.sh
@ -1,202 +0,0 @@
-#!/bin/sh
-#
-# 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/.
-
-##############################################################################
-##
-## Name:		glibcversion.sh - Print __GLIBC__ version if gnu libc 2 is 
-##              found.
-##
-## Description:	This script is needed by the mozilla build system.  It needs
-##              to determine whether the current platform (mostly the 
-##              various linux "platforms") are based on the gnu libc2.  This
-##              information is later used in mozilla to determine whether 
-##              gnu libc 2 specific "features" need to be handled, such
-##              as broken locales.
-##
-## Author:		Ramiro Estrugo <ramiro@netscape.com>
-##
-##############################################################################
-
-##
-## Command Line Flags Supported:
-##
-##  -g  | --is-glibc2:				Print True/False if detected __GLIBC__.
-##
-##  -v  | --print-version:			Print value of __GLIBC__ if found, or none.
-##
-##  -o  | --set-object-name:		Set object name for current system.
-##  -cc | --set-compiler:			Set compiler for building test program.
-##
-
-
-##
-## Constants
-##
-GLIBC_PROG_PREFIX=./get_glibc_info
-
-##
-## Defaults
-##
-GLIBC_PRINT_IS_GLIBC2=False
-
-GLIBC_PRINT_VERSION=False
-
-GLIBC_OBJECT_NAME=`uname`-`uname -r`
-GLIBC_CC=cc
-
-function glibc_usage()
-{
-echo
-echo "Usage:   `basename $0` [options]"
-echo
-echo "  -g,  --is-glibc2:          Print True/False if detected __GLIBC__."
-echo
-echo "  -v,  --print-version:      Print value of __GLIBC__ if found, or none."
-echo
-echo "  -o,  --set-object-name:    Set object name for current system."
-echo "  -cc, --set-compiler:       Set compiler for building test program."
-echo
-echo "  -h,  --help:               Print this blurb."
-echo
-echo "The default is '-v' if no options are given."
-echo
-}
-
-##
-## Parse the command line
-##
-while [ "$*" ]; do
-    case $1 in
-        -h | --help)
-            shift
-            glibc_usage
-			exit 0
-            ;;
-
-        -g | --is-glibc2)
-            shift
-            GLIBC_PRINT_IS_GLIBC2=True
-            ;;
-
-        -v | --print-version)
-            shift
-            GLIBC_PRINT_VERSION=True
-            ;;
-
-        -o | --set-object-name)
-            shift
-            GLIBC_OBJECT_NAME="$1"
-            shift
-            ;;
-
-        -cc | --set-compiler)
-            shift
-            GLIBC_CC="$1"
-            shift
-            ;;
-
-        -*)
-            echo "`basename $0`: invalid option '$1'"
-            shift
-            glibc_usage
-			exit 0
-            ;;
-    esac
-done
-
-##
-## Motif info program name
-##
-GLIBC_PROG="$GLIBC_PROG_PREFIX"_"$GLIBC_OBJECT_NAME"
-GLIBC_SRC="$GLIBC_PROG_PREFIX"_"$GLIBC_OBJECT_NAME.c"
-
-##
-## Cleanup the dummy test source/program
-##
-function glibc_cleanup()
-{
-	true
-
-#	rm -f $GLIBC_PROG
-#	rm -f $GLIBC_SRC
-
-}
-
-glibc_cleanup
-
-if [ ! -f $GLIBC_SRC ]
-then
-cat << EOF > $GLIBC_SRC
-#include <stdio.h>
-
-int main(int argc,char ** argv) 
-{
-#ifdef 	__GLIBC__
-	fprintf(stdout,"%d\n",__GLIBC__);
-#else
-	fprintf(stdout,"none\n");
-#endif
-
-	return 0;
-}
-EOF
-fi
-
-if [ ! -f $GLIBC_SRC ]
-then
-	echo
-	echo "Could not create test program source $GLIBC_SRC."
-	echo
-
-	glibc_cleanup
-
-	exit
-fi
-
-##
-## Compile the dummy test program if needed
-##
-if [ ! -x $GLIBC_PROG ]
-then
-	$GLIBC_CC -o $GLIBC_PROG $GLIBC_SRC
-fi
-
-if [ ! -x $GLIBC_PROG ]
-then
-	echo
-	echo "Could not create test program $GLIBC_PROG."
-	echo
-
-	glibc_cleanup
-
-	exit
-fi
-
-##
-## Execute the dummy test program
-##
-GLIBC_PROG_OUTPUT=`$GLIBC_PROG`
-
-##
-## -g | --is-glibc2
-##
-if [ "$GLIBC_PRINT_IS_GLIBC2" = "True" ]
-then
-	if [ "$GLIBC_PROG_OUTPUT" = "2" ]
-	then
-		echo True
-	else
-		echo False
-	fi
-
-	glibc_cleanup
-
-	exit 0
-fi
-
-echo $GLIBC_PROG_OUTPUT
-
-glibc_cleanup
--- a/configure.in
+++ b/configure.in
@ -137,6 +137,8 @@ MOZ_BUILD_ROOT=`pwd -W 2>/dev/null || pwd`

 MOZ_PYTHON

+MOZ_BUILD_BACKEND
+
 MOZ_DEFAULT_COMPILER

 COMPILE_ENVIRONMENT=1
--- a/devtools/client/styleinspector/test/browser_ruleview_cubicbezier-revert-on-ESC.js
+++ b/devtools/client/styleinspector/test/browser_ruleview_cubicbezier-revert-on-ESC.js
@ -49,7 +49,7 @@ function* testPressingEscapeRevertsChanges(view) {
  yield ruleEditor.rule._applyingModifications;

  yield waitForComputedStyleProperty("body", null, "animation-timing-function",
-    "cubic-bezier(0, 0, 1, 1)");
+    "linear");
  is(propEditor.valueSpan.textContent, "linear",
    "Got expected property value.");
 }
--- a/devtools/server/tests/browser/browser_navigateEvents.js
+++ b/devtools/server/tests/browser/browser_navigateEvents.js
@ -10,6 +10,8 @@ const URL2 = MAIN_DOMAIN + "navigate-second.html";
 var events = require("sdk/event/core");
 var client;

+SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});
+
 // State machine to check events order
 var i = 0;
 function assertEvent(event, data) {
--- a/docshell/test/browser/browser_onbeforeunload_navigation.js
+++ b/docshell/test/browser/browser_onbeforeunload_navigation.js
@ -6,6 +6,8 @@ var stayingOnPage = true;
 var TEST_PAGE = "http://mochi.test:8888/browser/docshell/test/browser/file_bug1046022.html";
 var TARGETED_PAGE = "data:text/html," + encodeURIComponent("<body>Shouldn't be seeing this</body>");

+SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});
+
 var loadExpected = TEST_PAGE;
 var testTab;

--- a/dom/animation/KeyframeEffect.cpp
+++ b/dom/animation/KeyframeEffect.cpp
@ -10,6 +10,7 @@
 #include "AnimationCommon.h"
 #include "nsCSSPropertySet.h"
 #include "nsCSSProps.h" // For nsCSSProps::PropHasFlags
+#include "nsStyleUtil.h"

 namespace mozilla {

@ -17,11 +18,12 @@ void
 ComputedTimingFunction::Init(const nsTimingFunction &aFunction)
 {
  mType = aFunction.mType;
-  if (mType == nsTimingFunction::Function) {
+  if (nsTimingFunction::IsSplineType(mType)) {
    mTimingFunction.Init(aFunction.mFunc.mX1, aFunction.mFunc.mY1,
                         aFunction.mFunc.mX2, aFunction.mFunc.mY2);
  } else {
    mSteps = aFunction.mSteps;
+    mStepSyntax = aFunction.mStepSyntax;
  }
 }

@ -35,23 +37,67 @@ StepEnd(uint32_t aSteps, double aPortion)

 double
 ComputedTimingFunction::GetValue(double aPortion) const
+{
+  if (HasSpline()) {
+    return mTimingFunction.GetSplineValue(aPortion);
+  }
+  if (mType == nsTimingFunction::Type::StepStart) {
+    // There are diagrams in the spec that seem to suggest this check
+    // and the bounds point should not be symmetric with StepEnd, but
+    // should actually step up at rather than immediately after the
+    // fraction points.  However, we rely on rounding negative values
+    // up to zero, so we can't do that.  And it's not clear the spec
+    // really meant it.
+    return 1.0 - StepEnd(mSteps, 1.0 - aPortion);
+  }
+  MOZ_ASSERT(mType == nsTimingFunction::Type::StepEnd, "bad type");
+  return StepEnd(mSteps, aPortion);
+}
+
+int32_t
+ComputedTimingFunction::Compare(const ComputedTimingFunction& aRhs) const
+{
+  if (mType != aRhs.mType) {
+    return int32_t(mType) - int32_t(aRhs.mType);
+  }
+
+  if (mType == nsTimingFunction::Type::CubicBezier) {
+    int32_t order = mTimingFunction.Compare(aRhs.mTimingFunction);
+    if (order != 0) {
+      return order;
+    }
+  } else if (mType == nsTimingFunction::Type::StepStart ||
+             mType == nsTimingFunction::Type::StepEnd) {
+    if (mSteps != aRhs.mSteps) {
+      return int32_t(mSteps) - int32_t(aRhs.mSteps);
+    }
+    if (mStepSyntax != aRhs.mStepSyntax) {
+      return int32_t(mStepSyntax) - int32_t(aRhs.mStepSyntax);
+    }
+  }
+
+  return 0;
+}
+
+void
+ComputedTimingFunction::AppendToString(nsAString& aResult) const
 {
  switch (mType) {
-    case nsTimingFunction::Function:
-      return mTimingFunction.GetSplineValue(aPortion);
-    case nsTimingFunction::StepStart:
-      // There are diagrams in the spec that seem to suggest this check
-      // and the bounds point should not be symmetric with StepEnd, but
-      // should actually step up at rather than immediately after the
-      // fraction points.  However, we rely on rounding negative values
-      // up to zero, so we can't do that.  And it's not clear the spec
-      // really meant it.
-      return 1.0 - StepEnd(mSteps, 1.0 - aPortion);
+    case nsTimingFunction::Type::CubicBezier:
+      nsStyleUtil::AppendCubicBezierTimingFunction(mTimingFunction.X1(),
+                                                   mTimingFunction.Y1(),
+                                                   mTimingFunction.X2(),
+                                                   mTimingFunction.Y2(),
+                                                   aResult);
+      break;
+    case nsTimingFunction::Type::StepStart:
+    case nsTimingFunction::Type::StepEnd:
+      nsStyleUtil::AppendStepsTimingFunction(mType, mSteps, mStepSyntax,
+                                             aResult);
+      break;
    default:
-      MOZ_ASSERT(false, "bad type");
-      // fall through
-    case nsTimingFunction::StepEnd:
-      return StepEnd(mSteps, aPortion);
+      nsStyleUtil::AppendCubicBezierKeywordTimingFunction(mType, aResult);
+      break;
  }
 }

@ -456,5 +502,116 @@ KeyframeEffectReadOnly::ResetIsRunningOnCompositor()
  }
 }

+struct KeyframeValueEntry
+{
+  float mOffset;
+  nsCSSProperty mProperty;
+  nsString mValue;
+  const ComputedTimingFunction* mTimingFunction;
+
+  bool operator==(const KeyframeValueEntry& aRhs) const
+  {
+    NS_ASSERTION(mOffset != aRhs.mOffset || mProperty != aRhs.mProperty,
+                 "shouldn't have duplicate (offset, property) pairs");
+    return false;
+  }
+
+  bool operator<(const KeyframeValueEntry& aRhs) const
+  {
+    NS_ASSERTION(mOffset != aRhs.mOffset || mProperty != aRhs.mProperty,
+                 "shouldn't have duplicate (offset, property) pairs");
+
+    // First, sort by offset.
+    if (mOffset != aRhs.mOffset) {
+      return mOffset < aRhs.mOffset;
+    }
+
+    // Second, by timing function.
+    int32_t order = mTimingFunction->Compare(*aRhs.mTimingFunction);
+    if (order != 0) {
+      return order < 0;
+    }
+
+    // Last, by property IDL name.
+    return nsCSSProps::PropertyIDLNameSortPosition(mProperty) <
+           nsCSSProps::PropertyIDLNameSortPosition(aRhs.mProperty);
+  }
+};
+
+void
+KeyframeEffectReadOnly::GetFrames(JSContext*& aCx,
+                                  nsTArray<JSObject*>& aResult,
+                                  ErrorResult& aRv)
+{
+  // Collect tuples of the form (offset, property, value, easing) from
+  // mProperties, then sort them so we can generate one ComputedKeyframe per
+  // offset/easing pair.  We sort secondarily by property IDL name so that we
+  // have a uniform order that we set properties on the ComputedKeyframe
+  // object.
+  nsAutoTArray<KeyframeValueEntry,4> entries;
+  for (const AnimationProperty& property : mProperties) {
+    if (property.mSegments.IsEmpty()) {
+      continue;
+    }
+    for (size_t i = 0, n = property.mSegments.Length(); i < n; i++) {
+      const AnimationPropertySegment& segment = property.mSegments[i];
+      KeyframeValueEntry* entry = entries.AppendElement();
+      entry->mOffset = segment.mFromKey;
+      entry->mProperty = property.mProperty;
+      entry->mTimingFunction = &segment.mTimingFunction;
+      StyleAnimationValue::UncomputeValue(property.mProperty,
+                                          segment.mFromValue,
+                                          entry->mValue);
+    }
+    const AnimationPropertySegment& segment = property.mSegments.LastElement();
+    KeyframeValueEntry* entry = entries.AppendElement();
+    entry->mOffset = segment.mToKey;
+    entry->mProperty = property.mProperty;
+    // We don't have the an appropriate animation-timing-function value to use,
+    // either from the element or from the 100% keyframe, so we just set it to
+    // the animation-timing-value value used on the previous segment.
+    entry->mTimingFunction = &segment.mTimingFunction;
+    StyleAnimationValue::UncomputeValue(property.mProperty,
+                                        segment.mToValue,
+                                        entry->mValue);
+  }
+  entries.Sort();
+
+  for (size_t i = 0, n = entries.Length(); i < n; ) {
+    // Create a JS object with the explicit ComputedKeyframe dictionary members.
+    ComputedKeyframe keyframeDict;
+    keyframeDict.mOffset.SetValue(entries[i].mOffset);
+    keyframeDict.mComputedOffset.Construct(entries[i].mOffset);
+    keyframeDict.mEasing.Truncate();
+    entries[i].mTimingFunction->AppendToString(keyframeDict.mEasing);
+    keyframeDict.mComposite.SetValue(CompositeOperation::Replace);
+
+    JS::Rooted<JS::Value> keyframeValue(aCx);
+    if (!ToJSValue(aCx, keyframeDict, &keyframeValue)) {
+      aRv.Throw(NS_ERROR_FAILURE);
+      return;
+    }
+
+    JS::Rooted<JSObject*> keyframe(aCx, &keyframeValue.toObject());
+
+    // Set the property name/value pairs on the JS object.
+    do {
+      const KeyframeValueEntry& entry = entries[i];
+      const char* name = nsCSSProps::PropertyIDLName(entry.mProperty);
+      JS::Rooted<JS::Value> value(aCx);
+      if (!ToJSValue(aCx, entry.mValue, &value) ||
+          !JS_DefineProperty(aCx, keyframe, name, value, JSPROP_ENUMERATE)) {
+        aRv.Throw(NS_ERROR_FAILURE);
+        return;
+      }
+      ++i;
+    } while (i < n &&
+             entries[i].mOffset == entries[i - 1].mOffset &&
+             *entries[i].mTimingFunction == *entries[i - 1].mTimingFunction);
+
+    aResult.AppendElement(keyframe);
+  }
+}
+
 } // namespace dom
 } // namespace mozilla
--- a/dom/animation/KeyframeEffect.h
+++ b/dom/animation/KeyframeEffect.h
@ -19,6 +19,7 @@
 #include "mozilla/TimeStamp.h"
 #include "mozilla/dom/AnimationEffectReadOnly.h"
 #include "mozilla/dom/Element.h"
+#include "mozilla/dom/KeyframeBinding.h"
 #include "mozilla/dom/Nullable.h"
 #include "nsSMILKeySpline.h"
 #include "nsStyleStruct.h" // for nsTimingFunction
@ -109,28 +110,35 @@ class ComputedTimingFunction
 {
 public:
  typedef nsTimingFunction::Type Type;
+  typedef nsTimingFunction::StepSyntax StepSyntax;
  void Init(const nsTimingFunction &aFunction);
  double GetValue(double aPortion) const;
  const nsSMILKeySpline* GetFunction() const {
-    NS_ASSERTION(mType == nsTimingFunction::Function, "Type mismatch");
+    NS_ASSERTION(HasSpline(), "Type mismatch");
    return &mTimingFunction;
  }
  Type GetType() const { return mType; }
+  bool HasSpline() const { return nsTimingFunction::IsSplineType(mType); }
  uint32_t GetSteps() const { return mSteps; }
+  StepSyntax GetStepSyntax() const { return mStepSyntax; }
  bool operator==(const ComputedTimingFunction& aOther) const {
    return mType == aOther.mType &&
-           (mType == nsTimingFunction::Function ?
+           (HasSpline() ?
            mTimingFunction == aOther.mTimingFunction :
-            mSteps == aOther.mSteps);
+            (mSteps == aOther.mSteps &&
+             mStepSyntax == aOther.mStepSyntax));
  }
  bool operator!=(const ComputedTimingFunction& aOther) const {
    return !(*this == aOther);
  }
+  int32_t Compare(const ComputedTimingFunction& aRhs) const;
+  void AppendToString(nsAString& aResult) const;

 private:
  Type mType;
  nsSMILKeySpline mTimingFunction;
  uint32_t mSteps;
+  StepSyntax mStepSyntax;
 };

 struct AnimationPropertySegment
@ -225,6 +233,9 @@ public:
               " pseudo-element is not yet supported.");
    return mTarget;
  }
+  void GetFrames(JSContext*& aCx,
+                 nsTArray<JSObject*>& aResult,
+                 ErrorResult& aRv);

  // Temporary workaround to return both the target element and pseudo-type
  // until we implement PseudoElement (bug 1174575).
--- a/dom/animation/moz.build
+++ b/dom/animation/moz.build
@ -30,8 +30,11 @@ UNIFIED_SOURCES += [
    'PendingAnimationTracker.cpp',
 ]

-FINAL_LIBRARY = 'xul'
-
 LOCAL_INCLUDES += [
    '/dom/base',
 ]
+
+FINAL_LIBRARY = 'xul'
+
+if CONFIG['GNU_CXX']:
+    CXXFLAGS += ['-Wshadow']
--- a/dom/animation/test/css-animations/file_keyframeeffect-getframes.html
+++ b/dom/animation/test/css-animations/file_keyframeeffect-getframes.html
@ -0,0 +1,455 @@
+<!doctype html>
+<meta charset=utf-8>
+<script src="../testcommon.js"></script>
+<style>
+@keyframes anim-empty { }
+
+@keyframes anim-empty-frames {
+  from { }
+  to   { }
+}
+
+@keyframes anim-only-timing {
+  from { animation-timing-function: linear; }
+  to   { }
+}
+
+@keyframes anim-only-non-animatable {
+  from { display: none; }
+  to   { display: inline; }
+}
+
+@keyframes anim-simple {
+  from { color: black; }
+  to   { color: white; }
+}
+
+@keyframes anim-simple-timing {
+  from { color: black; animation-timing-function: linear; }
+  50%  { color: blue;  animation-timing-function: ease-in-out; }
+  to   { color: white; animation-timing-function: step-end; }
+}
+
+@keyframes anim-simple-timing-some {
+  from { color: black; animation-timing-function: linear; }
+  50%  { color: blue; }
+  to   { color: white; }
+}
+
+@keyframes anim-simple-shorthand {
+  from { margin: 8px; }
+  to   { margin: 16px; }
+}
+
+@keyframes anim-omit-to {
+  from { color: blue; }
+}
+
+@keyframes anim-omit-from {
+  to   { color: blue; }
+}
+
+@keyframes anim-omit-from-to {
+  50%  { color: blue; }
+}
+
+@keyframes anim-different-props {
+  from { color: black; margin-top: 8px; }
+  25%  { color: blue; }
+  75%  { margin-top: 12px; }
+  to   { color: white; margin-top: 16px }
+}
+
+@keyframes anim-different-props-and-easing {
+  from { color: black; margin-top: 8px; animation-timing-function: linear; }
+  25%  { color: blue; animation-timing-function: step-end; }
+  75%  { margin-top: 12px; animation-timing-function: ease-in; }
+  to   { color: white; margin-top: 16px }
+}
+
+@keyframes anim-merge-offset {
+  from { color: black; }
+  to   { color: white; }
+  from { margin-top: 8px; }
+  to   { margin-top: 16px; }
+}
+
+@keyframes anim-merge-offset-and-easing {
+  from { color: black; animation-timing-function: step-end; }
+  to   { color: white; }
+  from { margin-top: 8px; animation-timing-function: linear; }
+  to   { margin-top: 16px; }
+  from { font-size: 16px; animation-timing-function: step-end; }
+  to   { font-size: 32px; }
+  from { padding-left: 2px; animation-timing-function: linear; }
+  to   { padding-left: 4px; }
+}
+
+@keyframes anim-no-merge-equiv-easing {
+  from { margin-top: 0px; animation-timing-function: steps(1, end); }
+  from { margin-right: 0px; animation-timing-function: step-end; }
+  from { margin-bottom: 0px; animation-timing-function: steps(1); }
+  50%  { margin-top: 10px; animation-timing-function: step-end; }
+  50%  { margin-right: 10px; animation-timing-function: step-end; }
+  50%  { margin-bottom: 10px; animation-timing-function: step-end; }
+  to   { margin-top: 20px; margin-right: 20px; margin-bottom: 20px; }
+}
+</style>
+<body>
+<script>
+"use strict";
+
+function getFrames(e) {
+  return e.getAnimations()[0].effect.getFrames();
+}
+
+function assert_frames_equal(a, b, name) {
+  assert_equals(Object.keys(a).sort().toString(),
+                Object.keys(b).sort().toString(),
+                "properties on " + name);
+  for (var p in a) {
+    assert_equals(a[p], b[p], "value for '" + p + "' on " + name);
+  }
+}
+
+// animation-timing-function values to test with, where the value
+// is exactly the same as its serialization, sorted by the order
+// getFrames() will group frames with the same easing function
+// together (by nsTimingFunction::Compare).
+const kTimingFunctionValues = [
+  "ease",
+  "linear",
+  "ease-in",
+  "ease-out",
+  "ease-in-out",
+  "step-start",
+  "steps(1, start)",
+  "steps(2, start)",
+  "step-end",
+  "steps(1)",
+  "steps(1, end)",
+  "steps(2)",
+  "steps(2, end)",
+  "cubic-bezier(0, 0, 1, 1)",
+  "cubic-bezier(0, 0.25, 0.75, 1)",
+];
+
+test(function(t) {
+  var div = addDiv(t);
+  var frames;
+
+  div.style.animation = 'anim-empty 100s';
+  assert_equals(getFrames(div).length, 0,
+                "number of frames with empty @keyframes");
+
+  div.style.animation = 'anim-empty-frames 100s';
+  assert_equals(getFrames(div).length, 0,
+                "number of frames when @keyframes has empty keyframes");
+
+  div.style.animation = 'anim-only-timing 100s';
+  assert_equals(getFrames(div).length, 0,
+                "number of frames when @keyframes only has keyframes with " +
+                "animation-timing-function");
+
+  div.style.animation = 'anim-only-non-animatable 100s';
+  assert_equals(getFrames(div).length, 0,
+                "number of frames when @keyframes only has frames with " +
+                "non-animatable properties");
+}, 'KeyframeEffectReadOnly.getFrames() returns no frames for various kinds ' +
+   'of empty enimations');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-simple 100s';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 2, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "ease", composite: "replace",
+      color: "rgb(0, 0, 0)" },
+    { offset: 1, computedOffset: 1, easing: "ease", composite: "replace",
+      color: "rgb(255, 255, 255)" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for a simple ' +
+   'animation');
+
+test(function(t) {
+  kTimingFunctionValues.forEach(function(easing) {
+    var div = addDiv(t);
+
+    div.style.animation = 'anim-simple 100s ' + easing;
+    var frames = getFrames(div);
+
+    assert_equals(frames.length, 2, "number of frames");
+
+    for (var i = 0; i < frames.length; i++) {
+      assert_equals(frames[i].easing, easing,
+                    "value for 'easing' on ComputedKeyframe #" + i);
+    }
+  });
+}, 'KeyframeEffectReadOnly.getFrames() returns frames with expected easing ' +
+   'values, when the easing comes from animation-timing-function on the ' +
+   'element');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-simple-timing 100s';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 3, "number of frames");
+  assert_equals(frames[0].easing, "linear",
+                "value of 'easing' on ComputedKeyframe #0");
+  assert_equals(frames[1].easing, "ease-in-out",
+                "value of 'easing' on ComputedKeyframe #1");
+  assert_equals(frames[2].easing, "ease-in-out",
+                "value of 'easing' on ComputedKeyframe #2");
+}, 'KeyframeEffectReadOnly.getFrames() returns frames with expected easing ' +
+   'values, when the easing is specified on each keyframe');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-simple-timing-some 100s step-start';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 3, "number of frames");
+  assert_equals(frames[0].easing, "linear",
+                "value of 'easing' on ComputedKeyframe #0");
+  assert_equals(frames[1].easing, "step-start",
+                "value of 'easing' on ComputedKeyframe #1");
+  assert_equals(frames[2].easing, "step-start",
+                "value of 'easing' on ComputedKeyframe #2");
+}, 'KeyframeEffectReadOnly.getFrames() returns frames with expected easing ' +
+   'values, when the easing is specified on some keyframes');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-simple-shorthand 100s';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 2, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "ease", composite: "replace",
+      marginTop: "8px", marginRight: "8px",
+      marginBottom: "8px", marginLeft: "8px" },
+    { offset: 1, computedOffset: 1, easing: "ease", composite: "replace",
+      marginTop: "16px", marginRight: "16px",
+      marginBottom: "16px", marginLeft: "16px" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for a simple ' +
+   'animation that specifies a single shorthand property');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-omit-to 100s';
+  div.style.color = 'white';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 2, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "ease", composite: "replace",
+      color: "rgb(0, 0, 255)" },
+    { offset: 1, computedOffset: 1, easing: "ease", composite: "replace",
+      color: "rgb(255, 255, 255)" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for an ' +
+   'animation with a 0% keyframe and no 100% keyframe');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-omit-from 100s';
+  div.style.color = 'white';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 2, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "ease", composite: "replace",
+      color: "rgb(255, 255, 255)" },
+    { offset: 1, computedOffset: 1, easing: "ease", composite: "replace",
+      color: "rgb(0, 0, 255)" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for an ' +
+   'animation with a 100% keyframe and no 0% keyframe');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-omit-from-to 100s';
+  div.style.color = 'white';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 3, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "ease", composite: "replace",
+      color: "rgb(255, 255, 255)" },
+    { offset: 0.5, computedOffset: 0.5, easing: "ease", composite: "replace",
+      color: "rgb(0, 0, 255)" },
+    { offset: 1, computedOffset: 1, easing: "ease", composite: "replace",
+      color: "rgb(255, 255, 255)" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for an ' +
+   'animation with no 0% or 100% keyframe but with a 50% keyframe');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-different-props 100s';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 4, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "ease", composite: "replace",
+      color: "rgb(0, 0, 0)", marginTop: "8px" },
+    { offset: 0.25, computedOffset: 0.25, easing: "ease", composite: "replace",
+      color: "rgb(0, 0, 255)" },
+    { offset: 0.75, computedOffset: 0.75, easing: "ease", composite: "replace",
+      marginTop: "12px" },
+    { offset: 1, computedOffset: 1, easing: "ease", composite: "replace",
+      color: "rgb(255, 255, 255)", marginTop: "16px" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for an ' +
+   'animation with different properties on different keyframes, all ' +
+   'with the same easing function');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-different-props-and-easing 100s';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 5, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "linear", composite: "replace",
+      color: "rgb(0, 0, 0)", marginTop: "8px" },
+    { offset: 0.25, computedOffset: 0.25, easing: "step-end", composite: "replace",
+      color: "rgb(0, 0, 255)" },
+    { offset: 0.75, computedOffset: 0.75, easing: "ease-in", composite: "replace",
+      marginTop: "12px" },
+    { offset: 1, computedOffset: 1, easing: "ease-in", composite: "replace",
+      marginTop: "16px" },
+    { offset: 1, computedOffset: 1, easing: "step-end", composite: "replace",
+      color: "rgb(255, 255, 255)", },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for an ' +
+   'animation with different properties on different keyframes, with ' +
+   'a different easing function on each');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-merge-offset 100s';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 2, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "ease", composite: "replace",
+      color: "rgb(0, 0, 0)", marginTop: "8px" },
+    { offset: 1, computedOffset: 1, easing: "ease", composite: "replace",
+      color: "rgb(255, 255, 255)", marginTop: "16px" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for an ' +
+   'animation with multiple keyframes for the same time, and all with ' +
+   'the same easing function');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-merge-offset-and-easing 100s';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 4, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "linear", composite: "replace",
+      marginTop: "8px", paddingLeft: "2px" },
+    { offset: 0, computedOffset: 0, easing: "step-end", composite: "replace",
+      color: "rgb(0, 0, 0)", fontSize: "16px" },
+    { offset: 1, computedOffset: 1, easing: "linear", composite: "replace",
+      marginTop: "16px", paddingLeft: "4px" },
+    { offset: 1, computedOffset: 1, easing: "step-end", composite: "replace",
+      color: "rgb(255, 255, 255)", fontSize: "32px" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for an ' +
+   'animation with multiple keyframes for the same time and with ' +
+   'different easing functions');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.animation = 'anim-no-merge-equiv-easing 100s';
+  var frames = getFrames(div);
+
+  assert_equals(frames.length, 5, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "step-end", composite: "replace",
+      marginRight: "0px" },
+    { offset: 0, computedOffset: 0, easing: "steps(1)", composite: "replace",
+      marginBottom: "0px" },
+    { offset: 0, computedOffset: 0, easing: "steps(1, end)", composite: "replace",
+      marginTop: "0px" },
+    { offset: 0.5, computedOffset: 0.5, easing: "step-end", composite: "replace",
+      marginTop: "10px", marginRight: "10px", marginBottom: "10px" },
+    { offset: 1, computedOffset: 1, easing: "step-end", composite: "replace",
+      marginTop: "20px", marginRight: "20px", marginBottom: "20px" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for an ' +
+   'animation with multiple keyframes for the same time and with ' +
+   'different but equivalent easing functions');
+
+done();
+</script>
+</body>
--- a/dom/animation/test/css-animations/test_keyframeeffect-getframes.html
+++ b/dom/animation/test/css-animations/test_keyframeeffect-getframes.html
@ -0,0 +1,15 @@
+<!doctype html>
+<meta charset=utf-8>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+'use strict';
+setup({explicit_done: true});
+SpecialPowers.pushPrefEnv(
+  { "set": [["dom.animations-api.core.enabled", true]]},
+  function() {
+    window.open("file_keyframeeffect-getframes.html");
+  });
+</script>
+</html>
--- a/dom/animation/test/css-transitions/file_keyframeeffect-getframes.html
+++ b/dom/animation/test/css-transitions/file_keyframeeffect-getframes.html
@ -0,0 +1,73 @@
+<!doctype html>
+<meta charset=utf-8>
+<script src="../testcommon.js"></script>
+<body>
+<script>
+'use strict';
+
+function getFrames(e) {
+  return e.getAnimations()[0].effect.getFrames();
+}
+
+function assert_frames_equal(a, b, name) {
+  assert_equals(Object.keys(a).sort().toString(),
+                Object.keys(b).sort().toString(),
+                "properties on " + name);
+  for (var p in a) {
+    assert_equals(a[p], b[p], "value for '" + p + "' on " + name);
+  }
+}
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.left = '0px';
+  window.getComputedStyle(div).transitionProperty;
+  div.style.transition = 'left 100s';
+  div.style.left = '100px';
+
+  var frames = getFrames(div);
+  
+  assert_equals(frames.length, 2, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "ease", composite: "replace",
+      left: "0px" },
+    { offset: 1, computedOffset: 1, easing: "ease", composite: "replace",
+      left: "100px" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for a simple ' +
+   'transition');
+
+test(function(t) {
+  var div = addDiv(t);
+
+  div.style.left = '0px';
+  window.getComputedStyle(div).transitionProperty;
+  div.style.transition = 'left 100s steps(2,end)';
+  div.style.left = '100px';
+
+  var frames = getFrames(div);
+  
+  assert_equals(frames.length, 2, "number of frames");
+
+  var expected = [
+    { offset: 0, computedOffset: 0, easing: "steps(2, end)", composite: "replace",
+      left: "0px" },
+    { offset: 1, computedOffset: 1, easing: "steps(2, end)", composite: "replace",
+      left: "100px" },
+  ];
+
+  for (var i = 0; i < frames.length; i++) {
+    assert_frames_equal(frames[i], expected[i], "ComputedKeyframe #" + i);
+  }
+}, 'KeyframeEffectReadOnly.getFrames() returns expected frames for a simple ' +
+   'transition with a non-default easing function');
+
+done();
+</script>
+</body>
--- a/dom/animation/test/css-transitions/test_keyframeeffect-getframes.html
+++ b/dom/animation/test/css-transitions/test_keyframeeffect-getframes.html
@ -0,0 +1,14 @@
+<!doctype html>
+<meta charset=utf-8>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+'use strict';
+setup({explicit_done: true});
+SpecialPowers.pushPrefEnv(
+  { "set": [["dom.animations-api.core.enabled", true]]},
+  function() {
+    window.open("file_keyframeeffect-getframes.html");
+  });
+</script>
--- a/dom/animation/test/mochitest.ini
+++ b/dom/animation/test/mochitest.ini
@ -32,6 +32,8 @@ support-files = css-animations/file_animation-reverse.html
 support-files = css-animations/file_animation-starttime.html
 [css-animations/test_cssanimation-animationname.html]
 support-files = css-animations/file_cssanimation-animationname.html
+[css-animations/test_keyframeeffect-getframes.html]
+support-files = css-animations/file_keyframeeffect-getframes.html
 [css-animations/test_effect-target.html]
 support-files = css-animations/file_effect-target.html
 [css-animations/test_element-get-animations.html]
@ -53,6 +55,8 @@ support-files = css-transitions/file_animation-ready.html
 support-files = css-transitions/file_animation-starttime.html
 [css-transitions/test_csstransition-transitionproperty.html]
 support-files = css-transitions/file_csstransition-transitionproperty.html
+[css-transitions/test_keyframeeffect-getframes.html]
+support-files = css-transitions/file_keyframeeffect-getframes.html
 [css-transitions/test_effect-target.html]
 support-files = css-transitions/file_effect-target.html
 [css-transitions/test_element-get-animations.html]
--- a/dom/base/DOMParser.cpp
+++ b/dom/base/DOMParser.cpp
@ -8,6 +8,7 @@

 #include "nsIDOMDocument.h"
 #include "nsNetUtil.h"
+#include "nsIStreamListener.h"
 #include "nsStringStream.h"
 #include "nsIScriptSecurityManager.h"
 #include "nsCRT.h"
--- a/dom/base/EventSource.cpp
+++ b/dom/base/EventSource.cpp
@ -17,6 +17,7 @@
 #include "nsNetUtil.h"
 #include "nsIAuthPrompt.h"
 #include "nsIAuthPrompt2.h"
+#include "nsIInputStream.h"
 #include "nsIInterfaceRequestorUtils.h"
 #include "nsMimeTypes.h"
 #include "nsIPromptFactory.h"
--- a/dom/base/FileList.cpp
+++ b/dom/base/FileList.cpp
@ -6,6 +6,7 @@

 #include "mozilla/dom/FileList.h"
 #include "mozilla/dom/FileListBinding.h"
+#include "mozilla/dom/File.h"

 namespace mozilla {
 namespace dom {
--- a/dom/base/PostMessageEvent.cpp
+++ b/dom/base/PostMessageEvent.cpp
@ -8,6 +8,7 @@

 #include "MessageEvent.h"
 #include "mozilla/dom/BlobBinding.h"
+#include "mozilla/dom/File.h"
 #include "mozilla/dom/FileList.h"
 #include "mozilla/dom/FileListBinding.h"
 #include "mozilla/dom/MessagePort.h"
--- a/dom/base/ProcessGlobal.h
+++ b/dom/base/ProcessGlobal.h
@ -17,7 +17,9 @@
 #include "nsIRunnable.h"
 #include "nsIGlobalObject.h"
 #include "nsIScriptObjectPrincipal.h"
+#include "nsServiceManagerUtils.h"
 #include "nsWeakReference.h"
+#include "nsWrapperCache.h"

 namespace mozilla {
 namespace dom {
--- a/dom/base/ScreenOrientation.cpp
+++ b/dom/base/ScreenOrientation.cpp
@ -4,9 +4,18 @@

 #include "ScreenOrientation.h"
 #include "nsIDeviceSensors.h"
+#include "nsIDocShell.h"
+#include "nsIDocument.h"
+#include "nsGlobalWindow.h"
 #include "nsSandboxFlags.h"
 #include "nsScreen.h"

+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/Hal.h"
+#include "mozilla/Preferences.h"
+
+#include "mozilla/dom/Promise.h"
+
 using namespace mozilla::dom;

 NS_IMPL_CYCLE_COLLECTION_INHERITED(ScreenOrientation,
--- a/dom/base/nsCopySupport.h
+++ b/dom/base/nsCopySupport.h
@ -6,6 +6,8 @@
 #ifndef nsCopySupport_h__
 #define nsCopySupport_h__

+#include "nsError.h"
+#include "nsIDocument.h"
 #include "mozilla/EventForwards.h"

 class nsINode;
--- a/dom/base/nsDOMClassInfo.cpp
+++ b/dom/base/nsDOMClassInfo.cpp
@ -31,6 +31,7 @@
 #include "nsICategoryManager.h"
 #include "nsIComponentRegistrar.h"
 #include "nsXPCOM.h"
+#include "nsISimpleEnumerator.h"
 #include "nsISupportsPrimitives.h"
 #include "nsIXPConnect.h"
 #include "xptcall.h"
--- a/dom/base/nsDOMDataChannel.cpp
+++ b/dom/base/nsDOMDataChannel.cpp
@ -213,6 +213,12 @@ nsDOMDataChannel::BufferedAmount() const
  return mDataChannel->GetBufferedAmount();
 }

+uint32_t
+nsDOMDataChannel::BufferedAmountLowThreshold() const
+{
+  return mDataChannel->GetBufferedAmountLowThreshold();
+}
+
 NS_IMETHODIMP
 nsDOMDataChannel::GetBufferedAmount(uint32_t* aBufferedAmount)
 {
@ -220,6 +226,12 @@ nsDOMDataChannel::GetBufferedAmount(uint32_t* aBufferedAmount)
  return NS_OK;
 }

+void
+nsDOMDataChannel::SetBufferedAmountLowThreshold(uint32_t aThreshold)
+{
+  mDataChannel->SetBufferedAmountLowThreshold(aThreshold);
+}
+
 NS_IMETHODIMP nsDOMDataChannel::GetBinaryType(nsAString & aBinaryType)
 {
  switch (mBinaryType) {
@ -468,6 +480,14 @@ nsDOMDataChannel::OnChannelClosed(nsISupports* aContext)
  return OnSimpleEvent(aContext, NS_LITERAL_STRING("close"));
 }

+nsresult
+nsDOMDataChannel::OnBufferLow(nsISupports* aContext)
+{
+  LOG(("%p(%p): %s - Dispatching\n",this,(void*)mDataChannel,__FUNCTION__));
+
+  return OnSimpleEvent(aContext, NS_LITERAL_STRING("bufferedamountlow"));
+}
+
 void
 nsDOMDataChannel::AppReady()
 {
--- a/dom/base/nsDOMDataChannel.h
+++ b/dom/base/nsDOMDataChannel.h
@ -54,11 +54,14 @@ public:
  bool Reliable() const;
  mozilla::dom::RTCDataChannelState ReadyState() const;
  uint32_t BufferedAmount() const;
+  uint32_t BufferedAmountLowThreshold() const;
+  void SetBufferedAmountLowThreshold(uint32_t aThreshold);
  IMPL_EVENT_HANDLER(open)
  IMPL_EVENT_HANDLER(error)
  IMPL_EVENT_HANDLER(close)
  // Uses XPIDL Close.
  IMPL_EVENT_HANDLER(message)
+  IMPL_EVENT_HANDLER(bufferedamountlow)
  mozilla::dom::RTCDataChannelType BinaryType() const
  {
    return static_cast<mozilla::dom::RTCDataChannelType>(
@ -97,6 +100,9 @@ public:
  virtual nsresult
  OnChannelClosed(nsISupports* aContext) override;

+  virtual nsresult
+  OnBufferLow(nsISupports* aContext) override;
+
  virtual void
  AppReady();

--- a/dom/base/nsDOMFileReader.cpp
+++ b/dom/base/nsDOMFileReader.cpp
@ -12,6 +12,7 @@
 #include "nsError.h"
 #include "nsIFile.h"
 #include "nsNetCID.h"
+#include "nsNetUtil.h"

 #include "nsXPCOM.h"
 #include "nsIDOMEventListener.h"
--- a/dom/base/nsDOMMutationObserver.cpp
+++ b/dom/base/nsDOMMutationObserver.cpp
@ -19,6 +19,7 @@
 #include "nsTextFragment.h"
 #include "nsThreadUtils.h"

+using mozilla::dom::TreeOrderComparator;
 using mozilla::dom::Animation;

 nsAutoTArray<nsRefPtr<nsDOMMutationObserver>, 4>*
--- a/dom/base/nsDocument.cpp
+++ b/dom/base/nsDocument.cpp
@ -1532,7 +1532,8 @@ nsIDocument::nsIDocument()
    mGetUserFontSetCalled(false),
    mPostedFlushUserFontSet(false),
    mPartID(0),
-    mDidFireDOMContentLoaded(true)
+    mDidFireDOMContentLoaded(true),
+    mUserHasInteracted(false)
 {
  SetInDocument();

--- a/dom/base/nsFocusManager.cpp
+++ b/dom/base/nsFocusManager.cpp
@ -1343,7 +1343,7 @@ nsFocusManager::SetFocusInner(nsIContent* aNewContent, int32_t aFlags,
      nsCOMPtr<nsIDocShell> docShell = newWindow->GetDocShell();

      nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
-      if (presShell)
+      if (presShell && presShell->DidInitialize())
        ScrollIntoView(presShell, contentToFocus, aFlags);
    }

--- a/dom/base/nsFrameLoader.cpp
+++ b/dom/base/nsFrameLoader.cpp
@ -14,6 +14,7 @@
 #include "prenv.h"

 #include "mozIApplication.h"
+#include "nsDocShell.h"
 #include "nsIDOMHTMLIFrameElement.h"
 #include "nsIDOMHTMLFrameElement.h"
 #include "nsIDOMMozBrowserFrame.h"
--- a/dom/base/nsGkAtomList.h
+++ b/dom/base/nsGkAtomList.h
@ -699,6 +699,7 @@ GK_ATOM(onblocked, "onblocked")
 GK_ATOM(onblur, "onblur")
 GK_ATOM(onbroadcast, "onbroadcast")
 GK_ATOM(onbusy, "onbusy")
+GK_ATOM(onbufferedamountlow, "onbufferedamountlow")
 GK_ATOM(oncached, "oncached")
 GK_ATOM(oncallschanged, "oncallschanged")
 GK_ATOM(oncancel, "oncancel")
--- a/dom/base/nsIDocument.h
+++ b/dom/base/nsIDocument.h
@ -2602,6 +2602,16 @@ public:

  void PropagateUseCounters(nsIDocument* aParentDocument);

+  void SetUserHasInteracted(bool aUserHasInteracted)
+  {
+    mUserHasInteracted = aUserHasInteracted;
+  }
+
+  bool UserHasInteracted()
+  {
+    return mUserHasInteracted;
+  }
+
 protected:
  bool GetUseCounter(mozilla::UseCounter aUseCounter)
  {
@ -3007,6 +3017,9 @@ protected:
  // Flags for whether we've notified our top-level "page" of a use counter
  // for this child document.
  std::bitset<mozilla::eUseCounter_Count> mNotifiedPageForUseCounter;
+
+  // Whether the user has interacted with the document or not:
+  bool mUserHasInteracted;
 };

 NS_DEFINE_STATIC_IID_ACCESSOR(nsIDocument, NS_IDOCUMENT_IID)
--- a/dom/base/nsNoDataProtocolContentPolicy.cpp
+++ b/dom/base/nsNoDataProtocolContentPolicy.cpp
@ -16,6 +16,7 @@
 #include "nsIProtocolHandler.h"
 #include "nsIIOService.h"
 #include "nsIExternalProtocolHandler.h"
+#include "nsIURI.h"
 #include "nsNetUtil.h"
 #include "nsContentUtils.h"

--- a/dom/base/nsObjectLoadingContent.cpp
+++ b/dom/base/nsObjectLoadingContent.cpp
@ -1473,6 +1473,37 @@ nsObjectLoadingContent::CheckJavaCodebase()
  return true;
 }

+bool
+nsObjectLoadingContent::IsYoutubeEmbed()
+{
+  nsCOMPtr<nsIContent> thisContent =
+    do_QueryInterface(static_cast<nsIImageLoadingContent*>(this));
+  NS_ASSERTION(thisContent, "Must be an instance of content");
+
+  // We're only interested in switching out embed tags
+  if (!thisContent->NodeInfo()->Equals(nsGkAtoms::embed)) {
+    return false;
+  }
+  nsCOMPtr<nsIEffectiveTLDService> tldService =
+    do_GetService(NS_EFFECTIVETLDSERVICE_CONTRACTID);
+  // If we can't analyze the URL, just pass on through.
+  if(!tldService) {
+    NS_WARNING("Could not get TLD service!");
+    return false;
+  }
+  nsAutoCString currentBaseDomain;
+  bool ok = NS_SUCCEEDED(tldService->GetBaseDomain(mURI, 0, currentBaseDomain));
+  if (!ok) {
+    NS_WARNING("Could not parse plugin domain!");
+    return false;
+  }
+  nsAutoCString domain("youtube.com");
+  if (StringEndsWith(domain, currentBaseDomain)) {
+    return true;
+  }
+  return false;
+}
+
 bool
 nsObjectLoadingContent::CheckLoadPolicy(int16_t *aContentPolicy)
 {
@ -2122,6 +2153,11 @@ nsObjectLoadingContent::LoadObject(bool aNotify,
    return NS_OK;
  }

+  // Check whether this is a youtube embed.
+  if (IsYoutubeEmbed()) {
+    Telemetry::Accumulate(Telemetry::YOUTUBE_EMBED_SEEN, 1);
+  }
+
  //
  // Security checks
  //
--- a/dom/base/nsObjectLoadingContent.h
+++ b/dom/base/nsObjectLoadingContent.h
@ -519,6 +519,8 @@ class nsObjectLoadingContent : public nsImageLoadingContent
     */
    nsPluginFrame* GetExistingFrame();

+    bool IsYoutubeEmbed();
+
    // Helper class for SetupProtoChain
    class SetupProtoChainRunner final : public nsIRunnable
    {
--- a/dom/base/nsXHTMLContentSerializer.cpp
+++ b/dom/base/nsXHTMLContentSerializer.cpp
@ -31,6 +31,7 @@
 #include "nsContentUtils.h"
 #include "nsLWBrkCIID.h"
 #include "nsIScriptElement.h"
+#include "nsStubMutationObserver.h"
 #include "nsAttrName.h"
 #include "nsParserConstants.h"
 #include "nsComputedDOMStyle.h"
--- a/dom/events/EventStateManager.cpp
+++ b/dom/events/EventStateManager.cpp
@ -503,6 +503,8 @@ EventStateManager::PreHandleEvent(nsPresContext* aPresContext,
        mouseEvent->mMessage != eMouseEnterIntoWidget &&
        mouseEvent->mMessage != eMouseExitFromWidget) ||
       aEvent->mClass == eWheelEventClass ||
+       aEvent->mClass == ePointerEventClass ||
+       aEvent->mClass == eTouchEventClass ||
       aEvent->mClass == eKeyboardEventClass)) {
    if (gMouseOrKeyboardEventCounter == 0) {
      nsCOMPtr<nsIObserverService> obs =
@ -513,6 +515,20 @@ EventStateManager::PreHandleEvent(nsPresContext* aPresContext,
      }
    }
    ++gMouseOrKeyboardEventCounter;
+
+
+    nsCOMPtr<nsINode> node = do_QueryInterface(aTargetContent);
+    if (node &&
+        (aEvent->mMessage == eKeyUp || aEvent->mMessage == eMouseUp ||
+         aEvent->mMessage == eWheel || aEvent->mMessage == eTouchEnd ||
+         aEvent->mMessage == ePointerUp)) {
+      nsIDocument* doc = node->OwnerDoc();
+      while (doc && !doc->UserHasInteracted()) {
+        doc->SetUserHasInteracted(true);
+        doc = nsContentUtils::IsChildOfSameType(doc) ?
+          doc->GetParentDocument() : nullptr;
+      }
+    }
  }

  WheelTransaction::OnEvent(aEvent);
--- a/dom/media/MediaFormatReader.cpp
+++ b/dom/media/MediaFormatReader.cpp
@ -1411,7 +1411,9 @@ MediaFormatReader::Seek(int64_t aTime, int64_t aUnused)

  nsRefPtr<SeekPromise> p = mSeekPromise.Ensure(__func__);

-  AttemptSeek();
+  RefPtr<nsIRunnable> task(
+    NS_NewRunnableMethod(this, &MediaFormatReader::AttemptSeek));
+  OwnerThread()->Dispatch(task.forget());

  return p;
 }
@ -1420,6 +1422,13 @@ void
 MediaFormatReader::AttemptSeek()
 {
  MOZ_ASSERT(OnTaskQueue());
+  if (mPendingSeekTime.isNothing()) {
+    return;
+  }
+  // An internal seek may be pending due to Seek queueing multiple tasks calling
+  // AttemptSeek ; we can ignore those by resetting any pending demuxer's seek.
+  mAudio.mSeekRequest.DisconnectIfExists();
+  mVideo.mSeekRequest.DisconnectIfExists();
  if (HasVideo()) {
    DoVideoSeek();
  } else if (HasAudio()) {
--- a/dom/media/VideoUtils.cpp
+++ b/dom/media/VideoUtils.cpp
@ -18,6 +18,9 @@
 #include "mozilla/SharedThreadPool.h"
 #include "nsIRandomGenerator.h"
 #include "nsIServiceManager.h"
+#include "nsServiceManagerUtils.h"
+#include "nsIConsoleService.h"
+#include "nsThreadUtils.h"

 #include <stdint.h>

@ -369,4 +372,98 @@ CreateFlushableMediaDecodeTaskQueue()
  return queue.forget();
 }

+void
+SimpleTimer::Cancel() {
+  if (mTimer) {
+#ifdef DEBUG
+    nsCOMPtr<nsIEventTarget> target;
+    mTimer->GetTarget(getter_AddRefs(target));
+    nsCOMPtr<nsIThread> thread(do_QueryInterface(target));
+    MOZ_ASSERT(NS_GetCurrentThread() == thread);
+#endif
+    mTimer->Cancel();
+    mTimer = nullptr;
+  }
+  mTask = nullptr;
+}
+
+NS_IMETHODIMP
+SimpleTimer::Notify(nsITimer *timer) {
+  nsRefPtr<SimpleTimer> deathGrip(this);
+  if (mTask) {
+    mTask->Run();
+    mTask = nullptr;
+  }
+  return NS_OK;
+}
+
+nsresult
+SimpleTimer::Init(nsIRunnable* aTask, uint32_t aTimeoutMs, nsIThread* aTarget)
+{
+  nsresult rv;
+
+  // Get target thread first, so we don't have to cancel the timer if it fails.
+  nsCOMPtr<nsIThread> target;
+  if (aTarget) {
+    target = aTarget;
+  } else {
+    rv = NS_GetMainThread(getter_AddRefs(target));
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+  }
+
+  nsCOMPtr<nsITimer> timer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  // Note: set target before InitWithCallback in case the timer fires before
+  // we change the event target.
+  rv = timer->SetTarget(aTarget);
+  if (NS_FAILED(rv)) {
+    timer->Cancel();
+    return rv;
+  }
+  rv = timer->InitWithCallback(this, aTimeoutMs, nsITimer::TYPE_ONE_SHOT);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  mTimer = timer.forget();
+  mTask = aTask;
+  return NS_OK;
+}
+
+NS_IMPL_ISUPPORTS(SimpleTimer, nsITimerCallback)
+
+already_AddRefed<SimpleTimer>
+SimpleTimer::Create(nsIRunnable* aTask, uint32_t aTimeoutMs, nsIThread* aTarget)
+{
+  nsRefPtr<SimpleTimer> t(new SimpleTimer());
+  if (NS_FAILED(t->Init(aTask, aTimeoutMs, aTarget))) {
+    return nullptr;
+  }
+  return t.forget();
+}
+
+void
+LogToBrowserConsole(const nsAString& aMsg)
+{
+  if (!NS_IsMainThread()) {
+    nsAutoString msg(aMsg);
+    nsCOMPtr<nsIRunnable> task =
+      NS_NewRunnableFunction([msg]() { LogToBrowserConsole(msg); });
+    NS_DispatchToMainThread(task.forget(), NS_DISPATCH_NORMAL);
+    return;
+  }
+  nsCOMPtr<nsIConsoleService> console(
+    do_GetService("@mozilla.org/consoleservice;1"));
+  if (!console) {
+    NS_WARNING("Failed to log message to console.");
+    return;
+  }
+  nsAutoString msg(aMsg);
+  console->LogStringMessage(msg.get());
+}
+
 } // end namespace mozilla
--- a/dom/media/VideoUtils.h
+++ b/dom/media/VideoUtils.h
@ -22,6 +22,8 @@
 #include "prtime.h"
 #include "AudioSampleFormat.h"
 #include "TimeUnits.h"
+#include "nsITimer.h"
+#include "nsCOMPtr.h"

 using mozilla::CheckedInt64;
 using mozilla::CheckedUint64;
@ -301,6 +303,32 @@ nsRefPtr<GenericPromise> InvokeUntil(Work aWork, Condition aCondition) {
  return p.forget();
 }

+// Simple timer to run a runnable after a timeout.
+class SimpleTimer : public nsITimerCallback
+{
+public:
+  NS_DECL_ISUPPORTS
+
+  // Create a new timer to run aTask after aTimeoutMs milliseconds
+  // on thread aTarget. If aTarget is null, task is run on the main thread.
+  static already_AddRefed<SimpleTimer> Create(nsIRunnable* aTask,
+                                              uint32_t aTimeoutMs,
+                                              nsIThread* aTarget = nullptr);
+  void Cancel();
+
+  NS_IMETHOD Notify(nsITimer *timer) override;
+
+private:
+  virtual ~SimpleTimer() {}
+  nsresult Init(nsIRunnable* aTask, uint32_t aTimeoutMs, nsIThread* aTarget);
+
+  nsRefPtr<nsIRunnable> mTask;
+  nsCOMPtr<nsITimer> mTimer;
+};
+
+void
+LogToBrowserConsole(const nsAString& aMsg);
+
 } // end namespace mozilla

 #endif
--- a/dom/media/eme/EMEUtils.cpp
+++ b/dom/media/eme/EMEUtils.cpp
@ -5,8 +5,6 @@
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

 #include "mozilla/EMEUtils.h"
-#include "nsServiceManagerUtils.h"
-#include "nsIConsoleService.h"

 namespace mozilla {

@ -110,19 +108,6 @@ ParseKeySystem(const nsAString& aInputKeySystem,
  return false;
 }

-void
-LogToBrowserConsole(const nsAString& aMsg)
-{
-  nsCOMPtr<nsIConsoleService> console(
-    do_GetService("@mozilla.org/consoleservice;1"));
-  if (!console) {
-    NS_WARNING("Failed to log message to console.");
-    return;
-  }
-  nsAutoString msg(aMsg);
-  console->LogStringMessage(msg.get());
-}
-
 void
 ConstructKeySystem(const nsAString& aKeySystem,
                   const nsAString& aCDMVersion,
--- a/dom/media/eme/EMEUtils.h
+++ b/dom/media/eme/EMEUtils.h
@ -51,9 +51,6 @@ bool ParseKeySystem(const nsAString& aKeySystem,
                    nsAString& aOutKeySystem,
                    int32_t& aOutMinCDMVersion);

-void
-LogToBrowserConsole(const nsAString& aMsg);
-
 void
 ConstructKeySystem(const nsAString& aKeySystem,
                   const nsAString& aCDMVersion,
--- a/dom/media/gmp/GMPVideoDecoderParent.cpp
+++ b/dom/media/gmp/GMPVideoDecoderParent.cpp
@ -50,6 +50,7 @@ GMPVideoDecoderParent::GMPVideoDecoderParent(GMPContentParent* aPlugin)
  , mCallback(nullptr)
  , mVideoHost(this)
  , mPluginId(aPlugin->GetPluginId())
+  , mFrameCount(0)
 {
  MOZ_ASSERT(mPlugin);
 }
@ -157,6 +158,7 @@ GMPVideoDecoderParent::Decode(GMPUniquePtr<GMPVideoEncodedFrame> aInputFrame,
                  aRenderTimeMs)) {
    return NS_ERROR_FAILURE;
  }
+  mFrameCount++;

  // Async IPC, we don't have access to a return value.
  return NS_OK;
@ -180,14 +182,33 @@ GMPVideoDecoderParent::Reset()

  mIsAwaitingResetComplete = true;

+  nsRefPtr<GMPVideoDecoderParent> self(this);
+  nsCOMPtr<nsIRunnable> task = NS_NewRunnableFunction([self]() -> void
+  {
+    LOGD(("GMPVideoDecoderParent[%p]::ResetCompleteTimeout() timed out waiting for ResetComplete", self.get()));
+    self->mResetCompleteTimeout = nullptr;
+    LogToBrowserConsole(NS_LITERAL_STRING("GMPVideoDecoderParent timed out waiting for ResetComplete()"));
+  });
+  CancelResetCompleteTimeout();
+  mResetCompleteTimeout = SimpleTimer::Create(task, 5000, mPlugin->GMPThread());
+
  // Async IPC, we don't have access to a return value.
  return NS_OK;
 }

+void
+GMPVideoDecoderParent::CancelResetCompleteTimeout()
+{
+  if (mResetCompleteTimeout) {
+    mResetCompleteTimeout->Cancel();
+    mResetCompleteTimeout = nullptr;
+  }
+}
+
 nsresult
 GMPVideoDecoderParent::Drain()
 {
-  LOGD(("GMPVideoDecoderParent[%p]::Drain()", this));
+  LOGD(("GMPVideoDecoderParent[%p]::Drain() frameCount=%d", this, mFrameCount));

  if (!mIsOpen) {
    NS_WARNING("Trying to use an dead GMP video decoder");
@ -280,8 +301,9 @@ GMPVideoDecoderParent::ActorDestroy(ActorDestroyReason aWhy)
 bool
 GMPVideoDecoderParent::RecvDecoded(const GMPVideoi420FrameData& aDecodedFrame)
 {
-  LOGV(("GMPVideoDecoderParent[%p]::RecvDecoded() timestamp=%lld",
-        this, aDecodedFrame.mTimestamp()));
+  --mFrameCount;
+  LOGV(("GMPVideoDecoderParent[%p]::RecvDecoded() timestamp=%lld frameCount=%d",
+    this, aDecodedFrame.mTimestamp(), mFrameCount));

  if (!mCallback) {
    return false;
@ -345,8 +367,11 @@ GMPVideoDecoderParent::RecvInputDataExhausted()
 bool
 GMPVideoDecoderParent::RecvDrainComplete()
 {
-  LOGD(("GMPVideoDecoderParent[%p]::RecvDrainComplete()", this));
-
+  LOGD(("GMPVideoDecoderParent[%p]::RecvDrainComplete() frameCount=%d", this, mFrameCount));
+  nsAutoString msg;
+  msg.AppendLiteral("GMPVideoDecoderParent::RecvDrainComplete() outstanding frames=");
+  msg.AppendInt(mFrameCount);
+  LogToBrowserConsole(msg);
  if (!mCallback) {
    return false;
  }
@ -367,6 +392,8 @@ GMPVideoDecoderParent::RecvResetComplete()
 {
  LOGD(("GMPVideoDecoderParent[%p]::RecvResetComplete()", this));

+  CancelResetCompleteTimeout();
+
  if (!mCallback) {
    return false;
  }
@ -375,6 +402,7 @@ GMPVideoDecoderParent::RecvResetComplete()
    return true;
  }
  mIsAwaitingResetComplete = false;
+  mFrameCount = 0;

  // Ignore any return code. It is OK for this to fail without killing the process.
  mCallback->ResetComplete();
@ -457,7 +485,9 @@ GMPVideoDecoderParent::Recv__delete__()
 void
 GMPVideoDecoderParent::UnblockResetAndDrain()
 {
-  LOGD(("GMPVideoDecoderParent[%p]::UnblockResetAndDrain()", this));
+  LOGD(("GMPVideoDecoderParent[%p]::UnblockResetAndDrain() "
+        "awaitingResetComplete=%d awaitingDrainComplete=%d",
+       this, mIsAwaitingResetComplete, mIsAwaitingDrainComplete));

  if (!mCallback) {
    MOZ_ASSERT(!mIsAwaitingResetComplete);
@ -472,6 +502,7 @@ GMPVideoDecoderParent::UnblockResetAndDrain()
    mIsAwaitingDrainComplete = false;
    mCallback->DrainComplete();
  }
+  CancelResetCompleteTimeout();
 }

 } // namespace gmp
--- a/dom/media/gmp/GMPVideoDecoderParent.h
+++ b/dom/media/gmp/GMPVideoDecoderParent.h
@ -14,6 +14,7 @@
 #include "GMPUtils.h"
 #include "GMPVideoHost.h"
 #include "GMPVideoDecoderProxy.h"
+#include "VideoUtils.h"

 namespace mozilla {
 namespace gmp {
@ -80,6 +81,7 @@ private:
  virtual bool Recv__delete__() override;

  void UnblockResetAndDrain();
+  void CancelResetCompleteTimeout();

  bool mIsOpen;
  bool mShuttingDown;
@ -90,6 +92,8 @@ private:
  GMPVideoDecoderCallbackProxy* mCallback;
  GMPVideoHostImpl mVideoHost;
  const uint32_t mPluginId;
+  int32_t mFrameCount;
+  nsRefPtr<SimpleTimer> mResetCompleteTimeout;
 };

 } // namespace gmp
--- a/Показать больше
+++ b/Показать больше