In-place modification of drag related functionality present in LocalFrame

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

 /*
  * Copyright (C) 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Google Inc.
  *
  * 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
@@ skipping 1106 matching lines @@
   std::unique_ptr<DragImage> drag_image =
       data_transfer->CreateDragImage(drag_offset, src);
   if (drag_image) {
     drag_location = DragLocationForDHTMLDrag(mouse_dragged_point, drag_origin,
                                              drag_offset, !link_url.IsEmpty());
   }
 
   Node* node = state.drag_src_.Get();
   if (state.drag_type_ == kDragSourceActionSelection) {
     if (!drag_image) {
-      drag_image = src->DragImageForSelection(kDragImageAlpha);
+      drag_image = DragImageForSelection(*src, kDragImageAlpha);
       drag_location = DragLocationForSelectionDrag(src);
     }
     DoSystemDrag(drag_image.get(), drag_location, drag_origin, data_transfer,
                  src, false);
   } else if (state.drag_type_ == kDragSourceActionImage) {
     if (image_url.IsEmpty() || !node || !node->IsElementNode())
       return false;
     Element* element = ToElement(node);
     Image* image = GetImage(element);
     if (!image || image->IsNull() || !image->Data() || !image->Data()->size())
@@ skipping 131 matching lines @@
 
 DEFINE_TRACE(DragController) {
   visitor->Trace(page_);
   visitor->Trace(document_under_mouse_);
   visitor->Trace(drag_initiator_);
   visitor->Trace(drag_state_);
   visitor->Trace(file_input_element_under_mouse_);
 }
 
 }  // namespace blink