cc: Remove forbidden using namespace directives.

cc/scoped_resource_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/scoped_resource.h"
 
 #include "cc/renderer.h"
 #include "cc/test/fake_graphics_context.h"
 #include "cc/test/tiled_layer_test_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/khronos/GLES2/gl2.h"
 
-using namespace cc;
 using namespace WebKit;
-using namespace WebKitTests;
 
+namespace cc {
 namespace {
 
 TEST(ScopedResourceTest, NewScopedResource)
 {
     scoped_ptr<GraphicsContext> context(createFakeGraphicsContext());
     scoped_ptr<ResourceProvider> resourceProvider(ResourceProvider::create(context.get()));
     scoped_ptr<ScopedResource> texture = ScopedResource::create(resourceProvider.get());
 
     // New scoped textures do not hold a texture yet.
     EXPECT_EQ(0u, texture->id());
@@ skipping 64 matching lines @@
         EXPECT_EQ(1u, resourceProvider->numResources());
 
         texture->free();
         EXPECT_EQ(0u, texture->id());
         EXPECT_EQ(1u, resourceProvider->numResources());
     }
 
     EXPECT_EQ(1u, resourceProvider->numResources());
 }
 
-}  // anonymous namespace
+}  // namespace
+}  // namespace cc