Convert HTMLMediaElement timers to MediaElementEvent per-frame.

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

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights
  * reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 597 matching lines @@
     // The load is deferred, and waiting for the task to set the
     // delaying-the-load-event flag (to false).
     WaitingForStopDelayingLoadEventTask,
     // The load is the deferred, and waiting for a triggering event.
     WaitingForTrigger,
     // The load is deferred, and waiting for the task to set the
     // delaying-the-load-event flag, after which the load will be executed.
     ExecuteOnStopDelayingLoadEventTask
   };
   DeferredLoadState m_deferredLoadState;
-  Timer<HTMLMediaElement> m_deferredLoadTimer;
+  TaskRunnerTimer<HTMLMediaElement> m_deferredLoadTimer;

[mlamouri (slow - plz ping), 2017/02/22 12:10:03]

Why wasn't it a TaskRunnerTimer<> like the others?

 
   std::unique_ptr<WebMediaPlayer> m_webMediaPlayer;
   WebLayer* m_webLayer;
 
   DisplayMode m_displayMode;
 
   Member<HTMLMediaSource> m_mediaSource;
 
   // Stores "official playback position", updated periodically from "current
   // playback position". Official playback position should not change while
@@ skipping 125 matching lines @@
 
 inline bool isHTMLMediaElement(const HTMLElement& element) {
   return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 }  // namespace blink
 
 #endif  // HTMLMediaElement_h