Cleanup namespace usage in Source/web/Web[I-Z]*.cpp

Source/web/WebUserGestureIndicator.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 16 matching lines @@
  * (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/WebUserGestureIndicator.h"
 
 #include "platform/UserGestureIndicator.h"
 #include "public/web/WebUserGestureToken.h"
 
-using namespace blink;
-
 namespace blink {
 
 bool WebUserGestureIndicator::isProcessingUserGesture()
 {
     return UserGestureIndicator::processingUserGesture();
 }
 
 bool WebUserGestureIndicator::consumeUserGesture()
 {
     return UserGestureIndicator::consumeUserGesture();
 }
 
 WebUserGestureToken WebUserGestureIndicator::currentUserGestureToken()
 {
     return WebUserGestureToken(UserGestureIndicator::currentToken());
 }
 
 } // namespace blink