Change cc files from namespace WebCore to cc

cc/stubs/Region.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_STUBS_REGION_H_
 #define CC_STUBS_REGION_H_
 
+#include "IntRect.h"
+#if INSIDE_WEBKIT_BUILD
+#include "Source/WebCore/platform/graphics/Region.h"
+#else
 #include "third_party/WebKit/Source/WebCore/platform/graphics/Region.h"
+#endif
+
+namespace cc {
+
+class Region : public WebCore::Region {
+public:
+    Region() { }
+
+    Region(const IntRect& rect)
+        : WebCore::Region(rect)
+    {
+    }
+
+    Region(const WebCore::IntRect& rect)
+        : WebCore::Region(rect)
+    {
+    }
+
+    Region(const WebCore::Region& region)
+        : WebCore::Region(region)
+    {
+    }
+};
+
+}
 
 #endif  // CC_STUBS_REGION_H_