Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebRTCConfiguration.cpp

 /*
  * Copyright (C) 2012 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 19 matching lines @@
 
 #include "config.h"
 
 #include "public/platform/WebRTCConfiguration.h"
 
 #include "platform/mediastream/RTCConfiguration.h"
 #include "public/platform/WebString.h"
 #include "public/platform/WebURL.h"
 #include "public/platform/WebVector.h"
 
-using namespace blink;
-
 namespace blink {
 
 WebRTCICEServer::WebRTCICEServer(const PassRefPtr<RTCIceServer>& iceServer)
     : m_private(iceServer)
 {
 }
 
 void WebRTCICEServer::assign(const WebRTCICEServer& other)
 {
     m_private = other.m_private;
@@ skipping 59 matching lines @@
         return WebRTCIceTransportsRelay;
     case RTCIceTransportsAll:
         return WebRTCIceTransportsAll;
     default:
         ASSERT_NOT_REACHED();
     }
     return WebRTCIceTransportsAll;
 }
 
 } // namespace blink