Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebSocketStreamError.cpp

 /*
  * Copyright (C) 2013 Intel 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/WebSocketStreamError.h"
 
 #include "platform/network/SocketStreamError.h"
 #include "public/platform/WebString.h"
 
-using namespace blink;
-
 namespace blink {
 
 void WebSocketStreamError::assign(int code, const WebString& message)
 {
     m_private = SocketStreamError::create(code, message);
 }
 
 void WebSocketStreamError::assign(const WebSocketStreamError& other)
 {
     m_private = other.m_private;
@@ skipping 13 matching lines @@
 {
     m_private = error;
     return *this;
 }
 
 WebSocketStreamError::operator PassRefPtr<SocketStreamError>() const
 {
     return m_private.get();
 }
 
-}
+} // namespace blink