Cleanup namespace usage in platform/graphics/[G-S]*

Source/platform/graphics/ImageLayerChromiumTest.cpp

 /*
  * Copyright (C) 2011 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
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 70 matching lines @@
             return nullptr;
 
         return m_nativeImage;
     }
 
     // Stub implementations of pure virtual Image functions.
     virtual void destroyDecodedData(bool) OVERRIDE
     {
     }
 
-    virtual void draw(GraphicsContext*, const FloatRect&, const FloatRect&, CompositeOperator, blink::WebBlendMode) OVERRIDE
+    virtual void draw(GraphicsContext*, const FloatRect&, const FloatRect&, CompositeOperator, WebBlendMode) OVERRIDE
     {
     }
 
 private:
 
     IntSize m_size;
 
     RefPtr<NativeImageSkia> m_nativeImage;
 };
 
 class GraphicsLayerForTesting : public GraphicsLayer {
 public:
     explicit GraphicsLayerForTesting(GraphicsLayerClient* client)
         : GraphicsLayer(client) { };
 
-    virtual blink::WebLayer* contentsLayer() const { return GraphicsLayer::contentsLayer(); }
+    virtual WebLayer* contentsLayer() const { return GraphicsLayer::contentsLayer(); }
 };
 
 TEST(ImageLayerChromiumTest, opaqueImages)
 {
     MockGraphicsLayerClient client;
     OwnPtr<GraphicsLayerForTesting> graphicsLayer = adoptPtr(new GraphicsLayerForTesting(&client));
     ASSERT_TRUE(graphicsLayer.get());
 
     RefPtr<Image> opaqueImage = TestImage::create(IntSize(100, 100), true /* opaque */);
     ASSERT_TRUE(opaqueImage.get());
     RefPtr<Image> nonOpaqueImage = TestImage::create(IntSize(100, 100), false /* opaque */);
     ASSERT_TRUE(nonOpaqueImage.get());
 
     ASSERT_FALSE(graphicsLayer->contentsLayer());
 
     graphicsLayer->setContentsToImage(opaqueImage.get());
     ASSERT_TRUE(graphicsLayer->contentsLayer()->opaque());
 
     graphicsLayer->setContentsToImage(nonOpaqueImage.get());
     ASSERT_FALSE(graphicsLayer->contentsLayer()->opaque());
 }
 
 } // namespace