Detect change on video/viewport intersection when rendered remotely

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 380 matching lines @@
   void requestSeek(double) final;
   void remoteRouteAvailabilityChanged(WebRemotePlaybackAvailability) final;
   void connectedToRemoteDevice() final;
   void disconnectedFromRemoteDevice() final;
   void cancelledRemotePlaybackRequest() final;
   void remotePlaybackStarted() final;
   bool hasSelectedVideoTrack() final;
   WebMediaPlayer::TrackId getSelectedVideoTrackId() final;
   bool isAutoplayingMuted() final;
   void requestReload(const WebURL&) final;
+  void activateViewportIntersectionMonitoring(bool) final;
 
   void loadTimerFired(TimerBase*);
   void progressEventTimerFired(TimerBase*);
   void playbackProgressTimerFired(TimerBase*);
+  void checkViewportIntersectionTimerFired(TimerBase*);
   void startPlaybackProgressTimer();
   void startProgressEventTimer();
   void stopPeriodicTimers();
 
   void seek(double time);
   void finishSeek();
   void checkIfSeekNeeded();
   void addPlayedRange(double start, double end);
 
   // FIXME: Rename to scheduleNamedEvent for clarity.
@@ skipping 126 matching lines @@
   void scheduleNotifyPlaying();
   void resolveScheduledPlayPromises();
   void rejectScheduledPlayPromises();
   void rejectPlayPromises(ExceptionCode, const String&);
   void rejectPlayPromisesInternal(ExceptionCode, const String&);
 
   EnumerationHistogram& showControlsHistogram() const;
 
   void onVisibilityChangedForAutoplay(bool isVisible);
 
-  void checkViewportIntersectionChanged();
   void viewportFillDebouncerTimerFired(TimerBase*);
 
   UnthrottledThreadTimer<HTMLMediaElement> m_loadTimer;
   UnthrottledThreadTimer<HTMLMediaElement> m_progressEventTimer;
   UnthrottledThreadTimer<HTMLMediaElement> m_playbackProgressTimer;
   UnthrottledThreadTimer<HTMLMediaElement> m_audioTracksTimer;
   UnthrottledThreadTimer<HTMLMediaElement> m_viewportFillDebouncerTimer;
+  UnthrottledThreadTimer<HTMLMediaElement> m_checkViewportIntersectionTimer;
   Member<TimeRanges> m_playedTimeRanges;
   Member<GenericEventQueue> m_asyncEventQueue;
 
   double m_playbackRate;
   double m_defaultPlaybackRate;
   NetworkState m_networkState;
   ReadyState m_readyState;
   ReadyState m_readyStateMaximum;
   KURL m_currentSrc;
   Member<MediaStreamDescriptor> m_srcObject;
@@ skipping 179 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