nsresult nsXBLService::GetBinding(nsIContent* aBoundElement, nsIURI* aURI, nsIXBLBinding** aResult)
NS_IMETHODIMP nsXBLService::GetBinding(nsCAutoString& aURLStr, nsIXBLBinding** aResult)
nsresult nsXBLService::GetBinding(nsIContent* aBoundElement,                                   nsIURI* aURI,                                   nsIXBLBinding** aResult){  PRBool dummy;  return GetBindingInternal(aBoundElement, aURI, PR_FALSE, &dummy, aResult);}