cc: Unify namespaces for all test files

cc/test/fake_picture_layer_tiling_client.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 "cc/test/fake_picture_layer_tiling_client.h"
 
 namespace cc {
 
 FakePictureLayerTilingClient::FakePictureLayerTilingClient()
     : tile_manager_(&tile_manager_client_, NULL, 1),
@@ skipping 11 matching lines @@
                                      tile_size_,
                                      GL_RGBA,
                                      rect,
                                      1));
 }
 
 void FakePictureLayerTilingClient::SetTileSize(gfx::Size tile_size) {
     tile_size_ = tile_size;
 }
 
-}
+}  // namespace cc