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

Source/web/BackForwardClientImpl.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 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 "web/BackForwardClientImpl.h"
 
 #include "public/web/WebViewClient.h"
 #include "web/WebViewImpl.h"
 
-using namespace blink;
-
 namespace blink {
 
 BackForwardClientImpl::BackForwardClientImpl(WebViewImpl* webView)
     : m_webView(webView)
 {
 }
 
 BackForwardClientImpl::~BackForwardClientImpl()
 {
 }
@@ skipping 16 matching lines @@
 
 int BackForwardClientImpl::backForwardListCount()
 {
     if (!m_webView->client())
         return 0;
     return backListCount() + 1 + forwardListCount();
 }
 
 
 } // namespace blink