In-place modification of drag related functionality present in LocalFrame

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

 /*
  * Copyright (C) 2007, 2009 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 63 matching lines @@
   bool PopulateDragDataTransfer(LocalFrame* src,
                                 const DragState&,
                                 const IntPoint& drag_origin);
   bool StartDrag(LocalFrame* src,
                  const DragState&,
                  const WebMouseEvent& drag_event,
                  const IntPoint& drag_origin);
 
   DragState& GetDragState();
 
+  static std::unique_ptr<DragImage> DragImageForSelection(const LocalFrame&,
+                                                          float);
+
   DECLARE_TRACE();
 
  private:
   explicit DragController(Page*);
 
   DispatchEventResult DispatchTextInputEventFor(LocalFrame*, DragData*);
   bool CanProcessDrag(DragData*, LocalFrame& local_root);
   bool ConcludeEditDrag(DragData*);
   DragOperation OperationForLoad(DragData*, LocalFrame& local_root);
   bool TryDocumentDrag(DragData*,
@@ skipping 27 matching lines @@
   Member<HTMLInputElement> file_input_element_under_mouse_;
   bool document_is_handling_drag_;
 
   DragDestinationAction drag_destination_action_;
   bool did_initiate_drag_;
 };
 
 }  // namespace blink
 
 #endif  // DragController_h