Get rid of of custom code for Clipboard.setDragImage()

Source/core/dom/Clipboard.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 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 14 matching lines @@
 
 #include "config.h"
 #include "core/dom/Clipboard.h"
 
 #include "HTMLNames.h"
 #include "core/dom/DataTransferItem.h"
 #include "core/dom/DataTransferItemList.h"
 #include "core/editing/markup.h"
 #include "core/fetch/ImageResource.h"
 #include "core/fileapi/FileList.h"
+#include "core/html/HTMLImageElement.h"
 #include "core/page/Frame.h"
 #include "core/platform/DragImage.h"
 #include "core/platform/MIMETypeRegistry.h"
 #include "core/platform/chromium/ChromiumDataObject.h"
 #include "core/rendering/RenderImage.h"
 #include "core/rendering/RenderObject.h"
 #include "platform/clipboard/ClipboardMimeTypes.h"
 #include "platform/clipboard/ClipboardUtilities.h"
 
 namespace WebCore {
@@ skipping 158 matching lines @@
         if (m_dataObject->item(i)->kind() == DataTransferItem::kindFile) {
             RefPtr<Blob> blob = m_dataObject->item(i)->getAsFile();
             if (blob && blob->isFile())
                 files->append(toFile(blob.get()));
         }
     }
 
     return files.release();
 }
 
-void Clipboard::setDragImage(ImageResource* img, const IntPoint& loc)
+void Clipboard::setDragImage(Element* image, int x, int y, ExceptionState& es)
+{
+    if (!isForDragAndDrop())
+        return;
+
+    if (!image) {
+        es.throwTypeError("setDragImage: Invalid first argument");
+        return;
+    }
+    IntPoint location(x, y);
+    if (image->hasTagName(HTMLNames::imgTag) && !image->inDocument())
+        setDragImageResource(toHTMLImageElement(image)->cachedImage(), location);
+    else
+        setDragImageElement(image, location);
+}
+
+void Clipboard::setDragImageResource(ImageResource* img, const IntPoint& loc)
 {
     setDragImage(img, 0, loc);
 }
 
 void Clipboard::setDragImageElement(Node* node, const IntPoint& loc)
 {
     setDragImage(0, node, loc);
 }
 
 PassOwnPtr<DragImage> Clipboard::createDragImage(IntPoint& loc, Frame* frame) const
@@ skipping 275 matching lines @@
     case DragOperationMove:
         return String("move");
     case DragOperationLink:
         return String("link");
     default:
         return String("copy");
     }
 }
 
 } // namespace WebCore