void SetPrototypeHandlers(nsXBLPrototypeHandler* aHandler) { mPrototypeHandler = aHandler; }
nsXBLPrototypeBinding::SetPrototypeHandlers(nsIXBLPrototypeHandler* aHandler) { mPrototypeHandler = aHandler; return NS_OK; }
  void SetPrototypeHandlers(nsXBLPrototypeHandler* aHandler) { mPrototypeHandler = aHandler; }