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

third_party/WebKit/Source/core/html/shadow/MediaControlElementTypes.h

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 50 matching lines @@
   MediaVolumeSliderThumb,
   MediaExitFullscreenButton,
   MediaOverlayPlayButton,
   MediaCastOffButton,
   MediaCastOnButton,
   MediaOverlayCastOffButton,
   MediaOverlayCastOnButton,
   MediaOverflowButton,
   MediaOverflowList,
   MediaDownloadButton,
+  MediaRemotingCastIcon,
 };
 
 CORE_EXPORT const HTMLMediaElement* toParentMediaElement(const Node*);
 CORE_EXPORT const HTMLMediaElement* toParentMediaElement(const LayoutObject&);
 
 CORE_EXPORT MediaControlElementType mediaControlElementType(const Node*);
 
 // ----------------------------
 
 // TODO(mustaq): The Media control elements that use MouseEvents should be
@@ skipping 120 matching lines @@
  protected:
   MediaControlTimeDisplayElement(MediaControls&, MediaControlElementType);
 
  private:
   double m_currentValue;
 };
 
 }  // namespace blink
 
 #endif  // MediaControlElementTypes_h