include RefCounted.h where needed, only.

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

 /*
  * 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ContextMenuProvider_h
 #define ContextMenuProvider_h
 
 #include "platform/heap/Handle.h"
-#include "wtf/RefCounted.h"
 
 namespace blink {
 
 class ContextMenu;
 class ContextMenuItem;
 
 class ContextMenuProvider : public GarbageCollectedFinalized<ContextMenuProvider> {
 public:
     virtual ~ContextMenuProvider() { }
     DEFINE_INLINE_VIRTUAL_TRACE() { }
 
     virtual void populateContextMenu(ContextMenu*) = 0;
     virtual void contextMenuItemSelected(const ContextMenuItem*) = 0;
     virtual void contextMenuCleared() = 0;
 };
 
 } // namespace blink
 
 #endif // ContextMenuProvider_h