cc: Unify namespaces for all test files

cc/layer_tree_host_common_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 "cc/layer_tree_host_common.h"
 
 #include "cc/content_layer.h"
 #include "cc/content_layer_client.h"
 #include "cc/layer.h"
 #include "cc/layer_animation_controller.h"
 #include "cc/layer_impl.h"
 #include "cc/math_util.h"
 #include "cc/proxy.h"
 #include "cc/single_thread_proxy.h"
 #include "cc/test/animation_test_common.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/quad_f.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/transform.h"
 
-using namespace WebKitTests;
-
 namespace cc {
 namespace {
 
 template<typename LayerType>
 void setLayerPropertiesForTestingInternal(LayerType* layer, const gfx::Transform& transform, const gfx::Transform& sublayerTransform, const gfx::PointF& anchor, const gfx::PointF& position, const gfx::Size& bounds, bool preserves3D)
 {
     layer->setTransform(transform);
     layer->setSublayerTransform(sublayerTransform);
     layer->setAnchorPoint(anchor);
     layer->setPosition(position);
@@ skipping 4767 matching lines @@
     EXPECT_EQ(m_canUseLCDText, m_grandChild->canUseLCDText());
 }
 
 INSTANTIATE_TEST_CASE_P(LayerTreeHostCommonTest,
                         LCDTextTest,
                         testing::Combine(testing::Bool(),
                                          testing::Bool()));
 
 }  // namespace
 }  // namespace cc