Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebSocketHandshakeResponseInfo.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/platform/WebSocketHandshakeResponseInfo.h"
 
 #include "platform/network/WebSocketHandshakeResponse.h"
 #include "public/platform/WebString.h"
 
-using blink::WebSocketHandshakeResponse;
-
 namespace blink {
 
 WebSocketHandshakeResponseInfo::WebSocketHandshakeResponseInfo() : m_private(new WebSocketHandshakeResponse)
 {
 }
 
 WebSocketHandshakeResponseInfo::~WebSocketHandshakeResponseInfo()
 {
     m_private.reset(0);
 }
@@ skipping 12 matching lines @@
 {
     m_private->addHeaderField(name, value);
 }
 
 void WebSocketHandshakeResponseInfo::setHeadersText(const WebString& text)
 {
     m_private->setHeadersText(text);
 }
 
 } // namespace blink