cc: Remove forbidden using namespace directives.

cc/nine_patch_layer_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/nine_patch_layer.h"
 
 #include "cc/layer_tree_host.h"
 #include "cc/occlusion_tracker.h"
 #include "cc/overdraw_metrics.h"
 #include "cc/rendering_stats.h"
 #include "cc/resource_provider.h"
 #include "cc/single_thread_proxy.h"
 #include "cc/resource_update_queue.h"
 #include "cc/texture_uploader.h"
 #include "cc/test/fake_graphics_context.h"
 #include "cc/test/fake_layer_tree_host_client.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/layer_tree_test_common.h"
 #include "SkBitmap.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using namespace cc;
 using ::testing::Mock;
 using ::testing::_;
 using ::testing::AtLeast;
 using ::testing::AnyNumber;
 
+namespace cc {
 namespace {
 
 class MockLayerTreeHost : public LayerTreeHost {
 public:
     MockLayerTreeHost()
         : LayerTreeHost(&m_fakeClient, LayerTreeSettings())
     {
         initialize(scoped_ptr<Thread>(NULL));
     }
 
@@ skipping 87 matching lines @@
         m_layerTreeHost->contentsTextureManager()->clearAllMemory(resourceProvider.get());
     }
 
     // Reupload after eviction
     testLayer->setTexturePriorities(calculator);
     testLayer->update(queue, &occlusionTracker, stats);
     EXPECT_EQ(queue.fullUploadSize(), 1);
     EXPECT_EQ(queue.partialUploadSize(), 0);
 }
 
-} // anonymous namespace
+}  // namespace
+}  // namespace cc