nsXMLNamedNodeMap::GetNamedItemNS(const nsString& aNamespaceURI, const nsString& aLocalName,
nsXMLNamedNodeMap::GetNamedItemNS(const nsAReadableString& aNamespaceURI, const nsAReadableString& aLocalName,
nsXMLNamedNodeMap::GetNamedItemNS(const nsString& aNamespaceURI,                                   const nsString& aLocalName,                                  nsIDOMNode** aReturn){  return NS_ERROR_NOT_IMPLEMENTED;}