blink: Cleanup core class forward declarations

third_party/WebKit/Source/core/page/DragData.h

 /*
  * Copyright (C) 2007 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 21 matching lines @@
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/HashMap.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class DataObject;
 class DocumentFragment;
 class LocalFrame;
-class Range;
 
 enum DragApplicationFlags {
   DragApplicationNone = 0,
   DragApplicationIsModal = 1,
   DragApplicationIsSource = 2,
   DragApplicationHasAttachedSheet = 4,
   DragApplicationIsCopyKeyDown = 8
 };
 
 class CORE_EXPORT DragData {
@@ skipping 38 matching lines @@
   const Member<DataObject> m_platformDragData;
   const DragOperation m_draggingSourceOperationMask;
   const DragApplicationFlags m_applicationFlags;
 
   bool containsHTML() const;
 };
 
 }  // namespace blink
 
 #endif  // !DragData_h