Backed out changeset 4de429b6ad64 (bug 1572798) for causing browser chrome failures CLOSED TREE

dom/base/Document.cpp

@@ -7270,7 +7270,8 @@ void Document::SetScriptGlobalObject(
   // still test false at this point and no state change will happen) or we're
   // doing the initial document load and don't want to fire the event for this
   // change.
-  //
+  dom::VisibilityState oldState = mVisibilityState;
+  mVisibilityState = ComputeVisibilityState();
   // When the visibility is changed, notify it to observers.
   // Some observers need the notification, for example HTMLMediaElement uses
   // it to update internal media resource allocation.
@@ -7283,7 +7284,9 @@ void Document::SetScriptGlobalObject(
   // not yet necessary. But soon after Document::SetScriptGlobalObject()
   // call, the document becomes not hidden. At the time, MediaDecoder needs
   // to know it and needs to start updating decoding.
-  UpdateVisibilityState(DispatchVisibilityChange::No);
+  if (oldState != mVisibilityState) {
+    EnumerateActivityObservers(NotifyActivityChanged);
+  }
 
   // The global in the template contents owner document should be the same.
   if (mTemplateContentsOwner && mTemplateContentsOwner != this) {
@@ -14852,15 +14855,13 @@ void Document::UnlockPointer(Document* aDoc) {
   asyncDispatcher->RunDOMEventWhenSafe();
 }
 
-void Document::UpdateVisibilityState(DispatchVisibilityChange aDispatchEvent) {
+void Document::UpdateVisibilityState() {
   dom::VisibilityState oldState = mVisibilityState;
   mVisibilityState = ComputeVisibilityState();
   if (oldState != mVisibilityState) {
-    if (aDispatchEvent == DispatchVisibilityChange::Yes) {
     nsContentUtils::DispatchTrustedEvent(this, ToSupports(this),
                                          u"visibilitychange"_ns,
                                          CanBubble::eYes, Cancelable::eNo);
-    }
     EnumerateActivityObservers(NotifyActivityChanged);
   }
 
@@ -14886,9 +14887,9 @@ VisibilityState Document::ComputeVisibilityState() const {
 }
 
 void Document::PostVisibilityUpdateEvent() {
-  nsCOMPtr<nsIRunnable> event = NewRunnableMethod<DispatchVisibilityChange>(
-      "Document::UpdateVisibilityState", this, &Document::UpdateVisibilityState,
-      DispatchVisibilityChange::Yes);
+  nsCOMPtr<nsIRunnable> event =
+      NewRunnableMethod("Document::UpdateVisibilityState", this,
+                        &Document::UpdateVisibilityState);
   Dispatch(TaskCategory::Other, event.forget());
 }
 

dom/base/Document.h

@@ -3207,11 +3207,7 @@ class Document : public nsINode,
 
   // This method may fire a DOM event; if it does so it will happen
   // synchronously.
-  //
-  // Whether the event fires is controlled by the argument.
-  enum class DispatchVisibilityChange { No, Yes };
-  void UpdateVisibilityState(
-      DispatchVisibilityChange = DispatchVisibilityChange::Yes);
+  void UpdateVisibilityState();
 
   // Posts an event to call UpdateVisibilityState.
   void PostVisibilityUpdateEvent();

toolkit/content/tests/browser/browser.ini

@@ -47,10 +47,6 @@ skip-if = (os == "win" && processor == "aarch64") || (os == "mac") || (os == "li
 [browser_delay_autoplay_webAudio.js]
 tags = audiochannel
 skip-if = (os == "win" && processor == "aarch64") # aarch64 due to 1536573
-[browser_bug1572798.js]
-tags = audiochannel
-skip-if = (os == "win" && processor == "aarch64") # aarch64 due to 1536573
-support-files = file_document_open_audio.html
 [browser_bug1170531.js]
 skip-if =
     os == "linux" && !debug && !ccov # Bug 1647973

toolkit/content/tests/browser/browser_bug1572798.js

@@ -1,29 +0,0 @@
-add_task(async function test_bug_1572798() {
-  let tab = BrowserTestUtils.addTab(window.gBrowser, "about:blank");
-  BrowserTestUtils.loadURI(
-    tab.linkedBrowser,
-    "https://example.com/browser/toolkit/content/tests/browser/file_document_open_audio.html"
-  );
-  await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
-  let windowLoaded = BrowserTestUtils.waitForNewWindow();
-  info("- clicking button to spawn a new window -");
-  await ContentTask.spawn(tab.linkedBrowser, null, function() {
-    content.document.querySelector("button").click();
-  });
-  info("- waiting for the new window -");
-  let newWin = await windowLoaded;
-  info("- checking that the new window plays the audio -");
-  let documentOpenedBrowser = newWin.gBrowser.selectedBrowser;
-  await ContentTask.spawn(documentOpenedBrowser, null, async function() {
-    try {
-      await content.document.querySelector("audio").play();
-      ok(true, "Could play the audio");
-    } catch (e) {
-      ok(false, "Rejected audio promise" + e);
-    }
-  });
-
-  info("- Cleaning up -");
-  await BrowserTestUtils.closeWindow(newWin);
-  await BrowserTestUtils.removeTab(tab);
-});

toolkit/content/tests/browser/file_document_open_audio.html

@@ -1,11 +0,0 @@
-<!doctype html>
-<title>Test for bug 1572798</title>
-<script>
-  function openVideo() {
-    var w = window.open('', '', 'width = 640, height = 480, scrollbars=yes, menubar=no, toolbar=no, resizable=yes');
-    w.document.open();
-    w.document.write('<!DOCTYPE html><title>test popup</title><audio controls src="audio.ogg"></audio>');
-    w.document.close();
-  }
-</script>
-<button onclick="openVideo()">Open video</button>