NS_NewXBLDragHandler(nsIDOMEventReceiver* aRec, nsIXBLPrototypeHandler* aHandler,
NS_NewXBLDragHandler(nsIDOMEventReceiver* aRec, nsXBLPrototypeHandler* aHandler,
NS_NewXBLDragHandler(nsIDOMEventReceiver* aRec, nsIXBLPrototypeHandler* aHandler,                      nsXBLDragHandler** aResult){  *aResult = new nsXBLDragHandler(aRec, aHandler);  if (!*aResult)    return NS_ERROR_OUT_OF_MEMORY;  NS_ADDREF(*aResult);  return NS_OK;}