Cleanup namespace usage in Source/web[A-V]*.cpp

Source/web/UserMediaClientImpl.cpp

 /*
  * Copyright (C) 2011 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 20 matching lines @@
 #include "config.h"
 #include "web/UserMediaClientImpl.h"
 
 #include "public/web/WebFrameClient.h"
 #include "public/web/WebMediaDevicesRequest.h"
 #include "public/web/WebUserMediaClient.h"
 #include "public/web/WebUserMediaRequest.h"
 #include "web/WebLocalFrameImpl.h"
 #include "wtf/RefPtr.h"
 
-using namespace blink;
-
 namespace blink {
 
 UserMediaClientImpl::UserMediaClientImpl(WebLocalFrameImpl* webFrame)
     : m_client(webFrame->client() ? webFrame->client()->userMediaClient() : 0)
 {
 }
 
 void UserMediaClientImpl::requestUserMedia(UserMediaRequest* request)
 {
     if (m_client)
@@ skipping 12 matching lines @@
         m_client->requestMediaDevices(request);
 }
 
 void UserMediaClientImpl::cancelMediaDevicesRequest(MediaDevicesRequest* request)
 {
     if (m_client)
         m_client->cancelMediaDevicesRequest(WebMediaDevicesRequest(request));
 }
 
 } // namespace blink