cc: Remove forbidden using namespace directives.

cc/tiled_layer_impl_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/tiled_layer_impl.h"
 
 #include "cc/append_quads_data.h"
 #include "cc/layer_tiling_data.h"
 #include "cc/single_thread_proxy.h"
 #include "cc/test/layer_test_common.h"
 #include "cc/test/mock_quad_culler.h"
 #include "cc/tile_draw_quad.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using namespace cc;
 using namespace LayerTestCommon;
 
+namespace cc {
 namespace {
 
 // Create a default tiled layer with textures for all tiles and a default
 // visibility of the entire layer size.
 static scoped_ptr<TiledLayerImpl> createLayer(const gfx::Size& tileSize, const gfx::Size& layerSize, LayerTilingData::BorderTexelOption borderTexels)
 {
     scoped_ptr<TiledLayerImpl> layer = TiledLayerImpl::create(1);
     scoped_ptr<LayerTilingData> tiler = LayerTilingData::create(tileSize, borderTexels);
     tiler->setBounds(layerSize);
     layer->setTilingData(*tiler);
@@ skipping 189 matching lines @@
     getQuads(quads, sharedStates, tileSize, layerSize, LayerTilingData::NoBorderTexels, gfx::Rect(gfx::Point(), layerSize));
 
     for (size_t i = 0; i < quads.size(); ++i) {
         ASSERT_EQ(quads[i]->material(), DrawQuad::TiledContent) << quadString << i;
         TileDrawQuad* quad = static_cast<TileDrawQuad*>(quads[i]);
 
         EXPECT_EQ(gfx::Rect(0, 0, 1, 1), quad->opaqueRect()) << quadString << i;
     }
 }
 
-}  // anonymous namespace
+}  // namespace
+}  // namespace cc