cc: Remove forbidden using namespace directives.

cc/gl_renderer_unittest.cc

 // 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.
 
 #include "config.h"
 #include "cc/gl_renderer.h"
 
 #include "cc/draw_quad.h"
 #include "cc/prioritized_resource_manager.h"
 #include "cc/resource_provider.h"
 #include "cc/settings.h"
 #include "cc/test/fake_web_compositor_output_surface.h"
 #include "cc/test/fake_web_graphics_context_3d.h"
 #include "cc/test/test_common.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include <public/WebTransformationMatrix.h>
 
-using namespace cc;
 using namespace WebKit;
 using namespace WebKitTests;
 
+namespace cc {
 namespace {
 
 class FrameCountingMemoryAllocationSettingContext : public FakeWebGraphicsContext3D {
 public:
     FrameCountingMemoryAllocationSettingContext() : m_frame(0) { }
 
     // WebGraphicsContext3D methods.
 
     // This method would normally do a glSwapBuffers under the hood.
     virtual void prepareTexture() { m_frame++; }
@@ skipping 441 matching lines @@
     // is called. Plumb this tracking between both the RenderClient and the Context by giving
     // them both a pointer to a variable on the stack.
     context->setLastCallWasSetVisibilityPointer(&lastCallWasSetVisiblity);
     mockClient.setLastCallWasSetVisibilityPointer(&lastCallWasSetVisiblity);
     renderer.setVisible(true);
     renderer.drawFrame(mockClient.renderPassesInDrawOrder(), mockClient.renderPasses());
     renderer.setVisible(false);
     EXPECT_TRUE(lastCallWasSetVisiblity);
 }
 
-}  // anonymous namespace
+}  // namespace
+}  // namespace cc