[RemotePlayback] Stop remote playback when disableRemotePlayback is set

third_party/WebKit/public/platform/WebMediaPlayer.h

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 101 matching lines @@
   // Playback controls.
   virtual void play() = 0;
   virtual void pause() = 0;
   virtual bool supportsSave() const = 0;
   virtual void seek(double seconds) = 0;
   virtual void setRate(double) = 0;
   virtual void setVolume(double) = 0;
 
   virtual void requestRemotePlayback() {}
   virtual void requestRemotePlaybackControl() {}
+  virtual void requestRemotePlaybackStop() {}
   virtual void setPreload(Preload) {}
   virtual void setBufferingStrategy(BufferingStrategy) {}
   virtual WebTimeRanges buffered() const = 0;
   virtual WebTimeRanges seekable() const = 0;
 
   // Attempts to switch the audio output device.
   // Implementations of setSinkId take ownership of the WebSetSinkCallbacks
   // object.
   // Note also that setSinkId implementations must make sure that all
   // methods of the WebSetSinkCallbacks object, including constructors and
@@ skipping 97 matching lines @@
 
   virtual void enabledAudioTracksChanged(
       const WebVector<TrackId>& enabledTrackIds) {}
   // |selectedTrackId| is null if no track is selected.
   virtual void selectedVideoTrackChanged(TrackId* selectedTrackId) {}
 };
 
 }  // namespace blink
 
 #endif