Rename WebCore namespace to blink in Platform

Source/platform/graphics/GraphicsContext.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * 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 39 matching lines @@
 #include "third_party/skia/include/effects/SkCornerPathEffect.h"
 #include "third_party/skia/include/effects/SkLumaColorFilter.h"
 #include "third_party/skia/include/gpu/GrRenderTarget.h"
 #include "third_party/skia/include/gpu/GrTexture.h"
 #include "wtf/Assertions.h"
 #include "wtf/MathExtras.h"
 
 using namespace std;
 using blink::WebBlendMode;
 
-namespace WebCore {
+namespace blink {
 
 namespace {
 
 class CompatibleImageBufferSurface : public ImageBufferSurface {
     WTF_MAKE_NONCOPYABLE(CompatibleImageBufferSurface); WTF_MAKE_FAST_ALLOCATED;
 public:
     CompatibleImageBufferSurface(PassRefPtr<SkSurface> surface, const IntSize& size, OpacityMode opacityMode)
         : ImageBufferSurface(size, opacityMode)
         , m_surface(surface)
     {
@@ skipping 1755 matching lines @@
 
 void GraphicsContext::didDrawTextInRect(const SkRect& textRect)
 {
     if (m_trackTextRegion) {
         TRACE_EVENT0("skia", "GraphicsContext::didDrawTextInRect");
         m_textRegion.join(textRect);
     }
 }
 
 }