Media element resource selection algorithm should "await a stable state"

third_party/WebKit/Source/core/html/HTMLMediaElement.h

Index: third_party/WebKit/Source/core/html/HTMLMediaElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElement.h b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
index a90d46750ed94108f3485e12de823c6ced35d227..3e12e6199110aac43e30fd35ae2d924d1cdd6169 100644
--- a/third_party/WebKit/Source/core/html/HTMLMediaElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
@@ -347,7 +347,7 @@ private:
     void disconnectedFromRemoteDevice() final;
     void cancelledRemotePlaybackRequest() final;
 
-    void loadTimerFired(Timer<HTMLMediaElement>*);
+    void textTrackLoadTimerFired(Timer<HTMLMediaElement>*);
     void progressEventTimerFired(Timer<HTMLMediaElement>*);
     void playbackProgressTimerFired(Timer<HTMLMediaElement>*);
     void startPlaybackProgressTimer();
@@ -364,14 +364,16 @@ private:
     // loading
     void invokeLoadAlgorithm();
     void invokeResourceSelectionAlgorithm();
+    void continueResourceSelectionAlgorithm();
+    void enqueueMicrotaskForResourceSelectionAlgorithmContinuation();
     void loadInternal();
     void selectMediaResource();
     void loadResource(const KURL&, ContentType&);
     void startPlayerLoad();
     void setPlayerPreload();
     WebMediaPlayer::LoadType loadType() const;
-    void scheduleNextSourceChild();
     void loadNextSourceChild();
+    void loadNextSourceChildOnError();
     void clearMediaPlayer();
     void clearMediaPlayerAndAudioSourceProviderClientWithoutLocking();
     bool havePotentialSourceChild();
@@ -474,7 +476,7 @@ private:
     void rejectPlayPromises();
     void rejectPlayPromises(ExceptionCode, const String&);
 
-    UnthrottledTimer<HTMLMediaElement> m_loadTimer;
+    UnthrottledTimer<HTMLMediaElement> m_textTrackLoadTimer;
     UnthrottledTimer<HTMLMediaElement> m_progressEventTimer;
     UnthrottledTimer<HTMLMediaElement> m_playbackProgressTimer;
     UnthrottledTimer<HTMLMediaElement> m_audioTracksTimer;
@@ -542,9 +544,6 @@ private:
 
     double m_fragmentEndTime;
 
-    typedef unsigned PendingActionFlags;
-    PendingActionFlags m_pendingActionFlags;
-
     // FIXME: HTMLMediaElement has way too many state bits.
     bool m_userGestureRequiredForPlay : 1;
     bool m_playing : 1;
@@ -584,6 +583,9 @@ private:
     OwnPtr<CancellableTaskFactory> m_playPromiseRejectTask;
     ExceptionCode m_playPromiseErrorCode;
 
+    OwnPtr<CancellableTaskFactory> m_resourceSelectionAlgorithmContinuationTask;
+    OwnPtr<CancellableTaskFactory> m_loadNextSourceChildOnErrorTask;
+
     // This is a weak reference, since m_audioSourceNode holds a reference to us.
     // FIXME: Oilpan: Consider making this a strongly traced pointer with oilpan where strong cycles are not a problem.
     GC_PLUGIN_IGNORE("http://crbug.com/404577")