cc: Remove forbidden using namespace directives.

cc/draw_quad_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/draw_quad.h"
 
 #include "cc/checkerboard_draw_quad.h"
 #include "cc/debug_border_draw_quad.h"
 #include "cc/io_surface_draw_quad.h"
 #include "cc/render_pass_draw_quad.h"
 #include "cc/solid_color_draw_quad.h"
 #include "cc/stream_video_draw_quad.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/texture_draw_quad.h"
 #include "cc/tile_draw_quad.h"
 #include "cc/yuv_video_draw_quad.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <public/WebTransformationMatrix.h>
 
 using WebKit::WebTransformationMatrix;
 
-using namespace cc;
-
+namespace cc {
 namespace {
 
 TEST(DrawQuadTest, copySharedQuadState)
 {
     WebTransformationMatrix quadTransform(1, 0.5, 0, 1, 0.5, 0);
     gfx::Rect visibleContentRect(10, 12, 14, 16);
     gfx::Rect clippedRectInTarget(19, 21, 23, 25);
     float opacity = 0.25;
     bool opaque = true;
     int id = 3;
@@ skipping 267 matching lines @@
     EXPECT_EQ(uPlane.resourceId, copyQuad->uPlane().resourceId);
     EXPECT_EQ(uPlane.size, copyQuad->uPlane().size);
     EXPECT_EQ(uPlane.format, copyQuad->uPlane().format);
     EXPECT_EQ(uPlane.visibleSize, copyQuad->uPlane().visibleSize);
     EXPECT_EQ(vPlane.resourceId, copyQuad->vPlane().resourceId);
     EXPECT_EQ(vPlane.size, copyQuad->vPlane().size);
     EXPECT_EQ(vPlane.format, copyQuad->vPlane().format);
     EXPECT_EQ(vPlane.visibleSize, copyQuad->vPlane().visibleSize);
 }
 
-}  // anonymous namespace
+}  // namespace
+}  // namespace cc