cc: Fix style for comments at the end of namespaces

cc/resource_provider_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/resource_provider.h"
 
 #include "base/logging.h"
 #include "cc/graphics_context.h"
@@ skipping 574 matching lines @@
         childResourceProvider->receiveFromParent(list);
     }
     EXPECT_EQ(0u, childResourceProvider->numResources());
 }
 
 INSTANTIATE_TEST_CASE_P(ResourceProviderTests,
                         ResourceProviderTest,
                         ::testing::Values(ResourceProvider::GLTexture,
                                           ResourceProvider::Bitmap));
 
-} // namespace
+}  // anonymous namespace