Fix unit test style in core/{animation,css,fetch,frame,layout,style,timing}/.

Source/core/frame/OriginsUsingFeaturesTest.cpp

 // Copyright 2015 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 "core/frame/OriginsUsingFeatures.h"
 
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 TEST(OriginsUsingFeaturesTest, countName)
 {
     OriginsUsingFeatures originsUsingFeatures;
     originsUsingFeatures.countName(OriginsUsingFeatures::Feature::EventPath, "test 1");
     EXPECT_EQ(1u, originsUsingFeatures.valueByName().size());
     originsUsingFeatures.countName(OriginsUsingFeatures::Feature::ElementCreateShadowRoot, "test 1");
     EXPECT_EQ(1u, originsUsingFeatures.valueByName().size());
     originsUsingFeatures.countName(OriginsUsingFeatures::Feature::EventPath, "test 2");
     EXPECT_EQ(2u, originsUsingFeatures.valueByName().size());
 
     EXPECT_TRUE(originsUsingFeatures.valueByName().get("test 1").get(OriginsUsingFeatures::Feature::EventPath));
     EXPECT_TRUE(originsUsingFeatures.valueByName().get("test 1").get(OriginsUsingFeatures::Feature::ElementCreateShadowRoot));
     EXPECT_FALSE(originsUsingFeatures.valueByName().get("test 1").get(OriginsUsingFeatures::Feature::DocumentRegisterElement));
     EXPECT_TRUE(originsUsingFeatures.valueByName().get("test 2").get(OriginsUsingFeatures::Feature::EventPath));
     EXPECT_FALSE(originsUsingFeatures.valueByName().get("test 2").get(OriginsUsingFeatures::Feature::ElementCreateShadowRoot));
     EXPECT_FALSE(originsUsingFeatures.valueByName().get("test 2").get(OriginsUsingFeatures::Feature::DocumentRegisterElement));
 
     originsUsingFeatures.clear();
 }
 
-} // namespace
+} // namespace blink