cc: Remove forbidden using namespace directives.

cc/tiled_layer_unittest.cc

 // Copyright 2011 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.h"
 
 #include "cc/bitmap_content_layer_updater.h"
 #include "cc/layer_painter.h"
 #include "cc/overdraw_metrics.h"
 #include "cc/rendering_stats.h"
 #include "cc/resource_update_controller.h"
 #include "cc/single_thread_proxy.h" // For DebugScopedSetImplThread
 #include "cc/test/animation_test_common.h"
 #include "cc/test/fake_graphics_context.h"
 #include "cc/test/fake_layer_tree_host_client.h"
 #include "cc/test/fake_proxy.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/tiled_layer_test_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/rect_conversions.h"
 #include <public/WebTransformationMatrix.h>
 
-using namespace cc;
 using namespace WebKitTests;
 using WebKit::WebTransformationMatrix;
 
+namespace cc {
 namespace {
 
 class TestOcclusionTracker : public OcclusionTracker {
 public:
     TestOcclusionTracker()
         : OcclusionTracker(gfx::Rect(0, 0, 1000, 1000), true)
         , m_layerClipRectInTarget(gfx::Rect(0, 0, 1000, 1000))
     {
         // Pretend we have visited a render surface.
         m_stack.push_back(StackObject());
@@ skipping 1579 matching lines @@
     EXPECT_RECT_EQ(gfx::Rect(), layer->trackingLayerPainter()->paintedRect());
     updateTextures();
 
     // Invalidate the entire layer in layer space. When painting, the rect given to webkit should match the layer's bounds.
     layer->setNeedsDisplayRect(layerRect);
     layer->update(*m_queue.get(), 0, m_stats);
 
     EXPECT_RECT_EQ(layerRect, layer->trackingLayerPainter()->paintedRect());
 }
 
-}  // anonymous namespace
+}  // namespace
+}  // namespace cc