Force the video to go fullscreen when setting persistent video

content/renderer/media/renderer_webmediaplayer_delegate.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_RENDERER_WEBMEDIAPLAYER_DELEGATE_H_
 #define CONTENT_RENDERER_MEDIA_RENDERER_WEBMEDIAPLAYER_DELEGATE_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 65 matching lines @@
   // Note: Does not call OnFrameHidden()/OnFrameShown().
   void SetFrameHiddenForTesting(bool is_hidden);
 
   friend class RendererWebMediaPlayerDelegateTest;
 
  private:
   void OnMediaDelegatePause(int player_id);
   void OnMediaDelegatePlay(int player_id);
   void OnMediaDelegateSuspendAllMediaPlayers();
   void OnMediaDelegateVolumeMultiplierUpdate(int player_id, double multiplier);
+  void OnMediaDelegateBecamePersistentVideo(int player_id, bool value);
 
   // Schedules UpdateTask() to run soon.
   void ScheduleUpdateTask();
 
   // Processes state changes, dispatches CleanupIdlePlayers().
   void UpdateTask();
 
   // Records UMAs about background playback.
   void RecordBackgroundVideoPlayback();
 
@@ skipping 49 matching lines @@
   // Determined at construction time based on system information; determines
   // when the idle cleanup timer should be fired more aggressively.
   bool is_low_end_device_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererWebMediaPlayerDelegate);
 };
 
 }  // namespace media
 
 #endif  // CONTENT_RENDERER_MEDIA_RENDERER_WEBMEDIAPLAYER_DELEGATE_H_