Rename WebCore namespace to blink in Platform

Source/platform/graphics/gpu/DrawingBuffer.h

 /*
  * Copyright (c) 2010, 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 35 matching lines @@
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
 class WebExternalBitmap;
 class WebExternalTextureLayer;
 class WebGraphicsContext3D;
 class WebLayer;
 }
 
-namespace WebCore {
+namespace blink {
 class Extensions3DUtil;
 class ImageData;
 class ImageBuffer;
 
 // Abstract interface to allow basic context eviction management
 class PLATFORM_EXPORT ContextEvictionManager : public RefCounted<ContextEvictionManager> {
 public:
     virtual ~ContextEvictionManager() {};
 
     virtual void forciblyLoseOldestContext(const String& reason) = 0;
@@ skipping 226 matching lines @@
     // match those that we were given in the most recent call to
     // reshape(), then we need an intermediate bitmap to read back the
     // frame buffer into. This seems to happen when CSS styles are
     // used to resize the Canvas.
     SkBitmap m_resizingBitmap;
 
     // Used to flip a bitmap vertically.
     Vector<uint8_t> m_scanline;
 };
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // DrawingBuffer_h