Fixed WebDragData's wrong dependency.

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 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 3594 matching lines @@
 
 WebDragOperation WebViewImpl::dragTargetDragEnter(
     const WebDragData& webDragData,
     const WebPoint& clientPoint,
     const WebPoint& screenPoint,
     WebDragOperationsMask operationsAllowed,
     int keyModifiers)
 {
     ASSERT(!m_currentDragData);
 
-    m_currentDragData = webDragData.getValue();
+    m_currentDragData = DataObject::create(webDragData);
     m_operationsAllowed = operationsAllowed;
 
     return dragTargetDragEnterOrOver(clientPoint, screenPoint, DragEnter, keyModifiers);
 }
 
 WebDragOperation WebViewImpl::dragTargetDragOver(
     const WebPoint& clientPoint,
     const WebPoint& screenPoint,
     WebDragOperationsMask operationsAllowed,
     int keyModifiers)
@@ skipping 1009 matching lines @@
     return mainFrameImpl()->frameView()->layoutSize().width() == m_size.width
         || (constraints.minimumScale == constraints.maximumScale && constraints.minimumScale != -1);
 }
 
 void WebViewImpl::forceNextWebGLContextCreationToFail()
 {
     WebGLRenderingContext::forceNextWebGLContextCreationToFail();
 }
 
 } // namespace blink