Fixed WebDragData's wrong dependency.

Source/core/clipboard/DataObject.h

 /*
  * Copyright (c) 2008, 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 28 matching lines @@
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class KURL;
 class SharedBuffer;
+class WebDragData;
 
 // A data object for holding data that would be in a clipboard or moved
 // during a drag-n-drop operation. This is the data that WebCore is aware
 // of and is not specific to a platform.
 class DataObject : public RefCountedWillBeGarbageCollectedFinalized<DataObject>, public WillBeHeapSupplementable<DataObject> {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DataObject);
 public:
     static PassRefPtrWillBeRawPtr<DataObject> createFromPasteboard(PasteMode);
     static PassRefPtrWillBeRawPtr<DataObject> create();
+    static PassRefPtrWillBeRawPtr<DataObject> create(WebDragData);
 
     virtual ~DataObject();
 
     // DataTransferItemList support.
     size_t length() const;
     PassRefPtrWillBeRawPtr<DataObjectItem> item(unsigned long index);
     // FIXME: Implement V8DataTransferItemList::indexedPropertyDeleter to get this called.
     void deleteItem(unsigned long index);
     void clearAll();
     // Returns null if an item already exists with the provided type.
@@ skipping 22 matching lines @@
     const String& filesystemId() const { ASSERT(!m_filesystemId.isEmpty()); return m_filesystemId; }
 
     // Used to handle files (images) being dragged out.
     void addSharedBuffer(const String& name, PassRefPtr<SharedBuffer>);
 
     int modifierKeyState() const { return m_modifierKeyState; }
     void setModifierKeyState(int modifierKeyState) { m_modifierKeyState = modifierKeyState; }
 
     DECLARE_TRACE();
 
+    WebDragData toWebDragData();
+
 private:
     DataObject();
 
     PassRefPtrWillBeRawPtr<DataObjectItem> findStringItem(const String& type) const;
     bool internalAddStringItem(PassRefPtrWillBeRawPtr<DataObjectItem>);
     void internalAddFileItem(PassRefPtrWillBeRawPtr<DataObjectItem>);
 
     WillBeHeapVector<RefPtrWillBeMember<DataObjectItem> > m_itemList;
 
     // State of Shift/Ctrl/Alt/Meta keys.
     int m_modifierKeyState;
     String m_filesystemId;
 };
 
 } // namespace blink
 
 #endif