Clean up forward declarations in Source/platform

Source/platform/graphics/media/MediaPlayer.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 
 #include "public/platform/WebMediaPlayer.h"
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class AudioSourceProvider;
 class KURL;
 class MediaPlayer;
-class TimeRanges;
-class WebContentDecryptionModule;
 class WebInbandTextTrack;
 class WebLayer;
 class WebMediaSource;
 
 class MediaPlayerClient {
 public:
     virtual ~MediaPlayerClient() { }
 
     // the network state has changed
     virtual void mediaPlayerNetworkStateChanged() = 0;
@@ skipping 53 matching lines @@
 
 #if ENABLE(WEB_AUDIO)
     virtual AudioSourceProvider* audioSourceProvider() = 0;
 #endif
     virtual WebMediaPlayer* webMediaPlayer() const = 0;
 };
 
 } // namespace blink
 
 #endif // MediaPlayer_h