Media Remoting: Add interstitial elements to media element shadow dom.

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

Index: third_party/WebKit/Source/core/html/HTMLMediaElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElement.h b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
index 5d42da7ec3c7d9b275cca434ea7caae3068da761..6f2ea37e63eaff678df0b8bb27bcc86b1f44f6f8 100644
--- a/third_party/WebKit/Source/core/html/HTMLMediaElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
@@ -63,6 +63,7 @@ class HTMLTrackElement;
 class KURL;
 class MediaControls;
 class MediaError;
+class MediaRemotingInterstitial;
 class MediaStreamDescriptor;
 class HTMLMediaSource;
 class ScriptState;
@@ -130,6 +131,7 @@ class CORE_EXPORT HTMLMediaElement
 
   bool hasRemoteRoutes() const;
   bool isPlayingRemotely() const { return m_playingRemotely; }
+  bool isMediaRemotingStarted() const { return m_mediaRemotingStarted; }
 
   // error state
   MediaError* error() const;
@@ -323,6 +325,8 @@ class CORE_EXPORT HTMLMediaElement
     return m_remotePlaybackClient;
   }
 
+  void disableMediaRemoting();
+
  protected:
   HTMLMediaElement(const QualifiedName&, Document&);
   ~HTMLMediaElement() override;
@@ -343,6 +347,8 @@ class CORE_EXPORT HTMLMediaElement
   DisplayMode getDisplayMode() const { return m_displayMode; }
   virtual void setDisplayMode(DisplayMode mode) { m_displayMode = mode; }
 
+  void onPosterImageChanged();
+
  private:
   // Friend class for testing.
   friend class MediaElementFillingViewportTest;
@@ -408,6 +414,8 @@ class CORE_EXPORT HTMLMediaElement
   bool isAutoplayingMuted() final;
   void requestReload(const WebURL&) final;
   void activateViewportIntersectionMonitoring(bool) final;
+  void mediaRemotingStarted() final;
+  void mediaRemotingStopped() final;
 
   void loadTimerFired(TimerBase*);
   void progressEventTimerFired(TimerBase*);
@@ -668,6 +676,10 @@ class CORE_EXPORT HTMLMediaElement
 
   bool m_mostlyFillingViewport : 1;
 
+  bool m_mediaRemotingDisabled : 1;
+
+  bool m_mediaRemotingStarted : 1;
+
   TraceWrapperMember<AudioTrackList> m_audioTracks;
   TraceWrapperMember<VideoTrackList> m_videoTracks;
   TraceWrapperMember<TextTrackList> m_textTracks;
@@ -758,6 +770,7 @@ class CORE_EXPORT HTMLMediaElement
 
   Member<MediaControls> m_mediaControls;
   Member<HTMLMediaElementControlsList> m_controlsList;
+  Member<MediaRemotingInterstitial> m_remotingInterstitial;
 
   bool m_isPersistentVideo;