Fix unit test style in Source/web/.

Source/web/tests/WebUserGestureTokenTest.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 11 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
-
 #include "public/web/WebUserGestureToken.h"
 
 #include "platform/UserGestureIndicator.h"
 #include "public/web/WebScopedUserGesture.h"
 #include "public/web/WebUserGestureIndicator.h"
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 TEST(WebUserGestureTokenTest, Basic)
 {
     WebUserGestureToken token;
     EXPECT_FALSE(token.hasGestures());
     UserGestureIndicator::clearProcessedUserGestureSinceLoad();
     EXPECT_FALSE(UserGestureIndicator::processedUserGestureSinceLoad());
 
     {
         WebScopedUserGesture indicator(token);
@@ skipping 20 matching lines @@
     EXPECT_FALSE(token.hasGestures());
 
     {
         WebScopedUserGesture indicator(token);
         EXPECT_FALSE(WebUserGestureIndicator::isProcessingUserGesture());
     }
 
     EXPECT_TRUE(UserGestureIndicator::processedUserGestureSinceLoad());
 }
 
-}
+} // namespace blink