Cleanup namespace usage in Source/web/[A-V]*.h

Source/web/GraphicsLayerFactoryChromium.h

 /*
  * Copyright (C) 2013 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  */
 
 #ifndef GraphicsLayerFactoryChromium_h
 #define GraphicsLayerFactoryChromium_h
 
 #include "platform/graphics/GraphicsLayerFactory.h"
 
 namespace blink {
 class WebViewImpl;
 
-class GraphicsLayerFactoryChromium FINAL : public blink::GraphicsLayerFactory {
+class GraphicsLayerFactoryChromium FINAL : public GraphicsLayerFactory {
 public:
     explicit GraphicsLayerFactoryChromium(WebViewImpl*);
 
     virtual ~GraphicsLayerFactoryChromium();
 
-    virtual PassOwnPtr<blink::GraphicsLayer> createGraphicsLayer(blink::GraphicsLayerClient*) OVERRIDE;
+    virtual PassOwnPtr<GraphicsLayer> createGraphicsLayer(GraphicsLayerClient*) OVERRIDE;
 
 private:
     // The owner of this GraphicsLayerFactoryChromium.
     WebViewImpl* m_webView;
 };
 
 } // namespace blink
 
 #endif