nsAutoString	url(uri);
nsAutoString	url; url.AssignWithConversion(uri);
InternetSearchDataSource::GetURL(nsIRDFResource *source, nsIRDFLiteral** aResult){        const char	*uri = nsnull;	source->GetValueConst( &uri );	nsAutoString	url(uri);	nsIRDFLiteral	*literal;	gRDFService->GetLiteral(url.GetUnicode(), &literal);        *aResult = literal;        return NS_OK;}