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

Source/web/DragClientImpl.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 29 matching lines @@
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebDragData.h"
 #include "public/platform/WebImage.h"
 #include "public/platform/WebPoint.h"
 #include "public/web/WebDragOperation.h"
 #include "public/web/WebViewClient.h"
 #include "web/WebViewImpl.h"
 #include "wtf/Assertions.h"
 #include "wtf/RefPtr.h"
 
-using namespace blink;
-
 namespace blink {
 
 DragDestinationAction DragClientImpl::actionMaskForDrag(DragData*)
 {
     if (m_webView->client() && m_webView->client()->acceptsLoadDrops())
         return DragDestinationActionAny;
 
     return static_cast<DragDestinationAction>(
         DragDestinationActionDHTML | DragDestinationActionEdit);
 }
@@ skipping 16 matching lines @@
             float scale = m_webView->deviceScaleFactor() / resolutionScale;
             dragImage->scale(scale, scale);
         }
         image = dragImage->bitmap();
     }
 
     m_webView->startDragging(frame, dragData, dragOperationMask, image, offsetPoint);
 }
 
 } // namespace blink