rv = NS_MakeAbsoluteURI(result, aURI, base);
nsAutoString result;  rv = NS_MakeAbsoluteURI(result, aURI, aBase);
rdf_MakeAbsoluteURI(const nsString& aBaseURI, nsString& aURI){    nsresult rv;    nsAutoString result;    if (!rdf_RequiresAbsoluteURI(aURI))        return NS_OK;        nsCOMPtr<nsIURI> base;    rv = NS_NewURI(getter_AddRefs(base), aBaseURI);    if (NS_FAILED(rv)) return rv;    rv = NS_MakeAbsoluteURI(result, aURI, base);    if (NS_SUCCEEDED(rv)) {        aURI = result;    }    else {        // There are some ugly URIs (e.g., "NC:Foo") that netlib can't        // parse. If NS_MakeAbsoluteURL fails, then just punt and        // assume that aURI was already absolute.    }    return NS_OK;}