cc: Fix style for comments at the end of namespaces

cc/prioritized_texture_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/prioritized_texture.h"
 
 #include "cc/prioritized_texture_manager.h"
 #include "cc/single_thread_proxy.h" // For DebugScopedSetImplThread
@@ skipping 684 matching lines @@
         EXPECT_EQ(texturesMemorySize(2), textureManager->memoryUseBytes());
         EXPECT_EQ(texturesMemorySize(3), textureManager->memoryVisibleBytes());
         EXPECT_EQ(texturesMemorySize(4), textureManager->memoryVisibleAndNearbyBytes());
     }
 
     DebugScopedSetImplThreadAndMainThreadBlocked implThreadAndMainThreadBlocked;
     textureManager->clearAllMemory(resourceProvider());
 }
 
 
-} // namespace
+}  // anonymous namespace