Force the video to go fullscreen when setting persistent video

media/blink/webmediaplayer_impl.h

 // Copyright 2013 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 MEDIA_BLINK_WEBMEDIAPLAYER_IMPL_H_
 #define MEDIA_BLINK_WEBMEDIAPLAYER_IMPL_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 178 matching lines @@
   void setPoster(const blink::WebURL& poster) override;
 
   // WebMediaPlayerDelegate::Observer implementation.
   void OnFrameHidden() override;
   void OnFrameClosed() override;
   void OnFrameShown() override;
   void OnIdleTimeout() override;
   void OnPlay() override;
   void OnPause() override;
   void OnVolumeMultiplierUpdate(double multiplier) override;
+  void OnBecamePersistentVideo(bool value) override;
 
   void requestRemotePlaybackDisabled(bool disabled) override;
 #if defined(OS_ANDROID)  // WMPI_CAST
   bool isRemote() const override;
   void requestRemotePlayback() override;
   void requestRemotePlaybackControl() override;
   void requestRemotePlaybackStop() override;
 
   void SetMediaPlayerManager(
       RendererMediaPlayerManagerInterface* media_player_manager);
@@ skipping 500 matching lines @@
 
   // Whether embedded media experience is currently enabled.
   bool embedded_media_experience_enabled_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_WEBMEDIAPLAYER_IMPL_H_