Eliminate MediaPlayer & MediaPlayerClient abstractions(rate, setRate and other APIs)

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 107 matching lines @@
     virtual bool supportsSave() const = 0;
 
     virtual double duration() const = 0;
 
     virtual double currentTime() const = 0;
 
     virtual void seek(double) = 0;
 
     virtual bool seeking() const = 0;
 
-    virtual double rate() const = 0;
-    virtual void setRate(double) = 0;
-
     virtual bool paused() const = 0;
 
     virtual void setPoster(const KURL&) = 0;
 
     enum NetworkState { Empty, Idle, Loading, Loaded, FormatError, NetworkError, DecodeError };
     virtual NetworkState networkState() const = 0;
 
     enum ReadyState  { HaveNothing, HaveMetadata, HaveCurrentData, HaveFutureData, HaveEnoughData };
     virtual ReadyState readyState() const = 0;
 
-    virtual double maxTimeSeekable() const = 0;
-    virtual PassRefPtr<TimeRanges> buffered() const = 0;
-
-    virtual bool didLoadingProgress() const = 0;
-
     virtual void paint(GraphicsContext*, const IntRect&) = 0;
     virtual bool copyVideoTextureToPlatformTexture(blink::WebGraphicsContext3D*, Platform3DObject, GC3Dint, GC3Denum, GC3Denum, bool, bool) = 0;
 
     enum Preload { None, MetaData, Auto };
     virtual void setPreload(Preload) = 0;
 
     virtual bool hasSingleSecurityOrigin() const = 0;
 
     // Time value in the movie's time scale. It is only necessary to override this if the media
     // engine uses rational numbers to represent media time.
     virtual double mediaTimeForTimeValue(double timeValue) const = 0;
 
 #if ENABLE(WEB_AUDIO)
     virtual AudioSourceProvider* audioSourceProvider() = 0;
 #endif
     virtual blink::WebMediaPlayer* webMediaPlayer() const = 0;
 };
 
 }
 
 #endif // MediaPlayer_h