Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebURLRequest.cpp

 /*
  * Copyright (C) 2009 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/WebURLRequest.h"
 
 #include "platform/exported/WebURLRequestPrivate.h"
 #include "platform/network/ResourceRequest.h"
 #include "public/platform/WebHTTPBody.h"
 #include "public/platform/WebHTTPHeaderVisitor.h"
 #include "public/platform/WebURL.h"
 
-using namespace blink;
-
 namespace blink {
 
 namespace {
 
 class ExtraDataContainer : public ResourceRequest::ExtraData {
 public:
     static PassRefPtr<ExtraDataContainer> create(WebURLRequest::ExtraData* extraData) { return adoptRef(new ExtraDataContainer(extraData)); }
 
     virtual ~ExtraDataContainer() { }
 
@@ skipping 298 matching lines @@
     // Subclasses may call this directly so a self-assignment check is needed
     // here as well as in the public assign method.
     if (m_private == p)
         return;
     if (m_private)
         m_private->dispose();
     m_private = p;
 }
 
 } // namespace blink