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

Source/core/style/OutlineValueTest.cpp

 // Copyright 2014 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/style/OutlineValue.h"
 
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 TEST(OutlineValueTest, VisuallyEqualStyle)
 {
     OutlineValue outline1;
     OutlineValue outline2;
 
     // Outlines visually equal if their styles are all BNONE.
     EXPECT_TRUE(outline1.visuallyEqual(outline2));
     outline2.setOffset(10);
     EXPECT_TRUE(outline1.visuallyEqual(outline2));
@@ skipping 28 matching lines @@
     outline2.setStyle(DOTTED);
     EXPECT_TRUE(outline1.visuallyEqual(outline2));
 
     outline1.setIsAuto(AUTO_ON);
     EXPECT_FALSE(outline1.visuallyEqual(outline2));
 
     outline2.setIsAuto(AUTO_ON);
     EXPECT_TRUE(outline1.visuallyEqual(outline2));
 }
 
-}
+} // namespace blink