Rename WebCore namespace to blink in Platform

Source/platform/graphics/GraphicsContextTest.cpp

 /*
  * Copyright (C) 2012 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 17 matching lines @@
 
 #include "platform/graphics/BitmapImage.h"
 #include "platform/graphics/DisplayList.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/skia/NativeImageSkia.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkPicture.h"
 #include <gtest/gtest.h>
 
-using namespace WebCore;
+using namespace blink;
 
 namespace {
 
 #define EXPECT_EQ_RECT(a, b) \
     EXPECT_EQ(a.x(), b.x()); \
     EXPECT_EQ(a.y(), b.y()); \
     EXPECT_EQ(a.width(), b.width()); \
     EXPECT_EQ(a.height(), b.height());
 
 #define EXPECT_PIXELS_MATCH(bitmap, opaqueRect) \
@@ skipping 1065 matching lines @@
     EXPECT_FALSE(pic);
 
     // endRecording finally makes the picture accessible
     dl->endRecording();
     pic = dl->picture();
     EXPECT_TRUE(pic);
     EXPECT_EQ(1, pic->getRefCnt());
 }
 
 } // namespace