cc: Unify namespaces for all test files

cc/test/fake_content_layer_client.h

 // Copyright 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_TEST_FAKE_CONTENT_LAYER_CLIENT_H_
 #define CC_TEST_FAKE_CONTENT_LAYER_CLIENT_H_
 
 #include "base/compiler_specific.h"
 #include "cc/content_layer_client.h"
 
-namespace WebKitTests {
+namespace cc {
 
 class FakeContentLayerClient : public cc::ContentLayerClient {
 public:
     FakeContentLayerClient();
 
     virtual void paintContents(SkCanvas*, const gfx::Rect& rect, gfx::RectF& opaqueRect) OVERRIDE;
 
     void setPaintAllOpaque(bool opaque) { m_paintAllOpaque = opaque; }
 
 private:
     bool m_paintAllOpaque;
 };
 
-}  // namespace WebKitTests
+}  // namespace cc
 
 #endif  // CC_TEST_FAKE_CONTENT_LAYER_CLIENT_H_