return NS_NewURI(result, nsDependentCString(spec), nsnull, baseURI);
return NS_NewURI(result, NS_ConvertUCS2toUTF8(spec), charset, baseURI, ioService);
inline nsresult NS_NewURI(nsIURI **result,                           const char *spec,                          nsIURI *baseURI = nsnull){    return NS_NewURI(result, nsDependentCString(spec), nsnull, baseURI);}