Rename WebCore namespace to blink in 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 22 matching lines @@
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 class WebGraphicsContext3D;
 class WebContentDecryptionModule;
 class WebInbandTextTrack;
 class WebLayer;
 class WebMediaSource;
 }
 
-namespace WebCore {
+namespace blink {
 
 class AudioSourceProvider;
 class GraphicsContext;
 class IntRect;
 class KURL;
 class MediaPlayer;
 class TimeRanges;
 
 // GL types as defined in OpenGL ES 2.0 header file gl2.h from khronos.org.
 // That header cannot be included directly due to a conflict with NPAPI headers.
@@ skipping 66 matching lines @@
 
 #if ENABLE(WEB_AUDIO)
     virtual AudioSourceProvider* audioSourceProvider() = 0;
 #endif
     virtual blink::WebMediaPlayer* webMediaPlayer() const = 0;
 };
 
 }
 
 #endif // MediaPlayer_h