nsIRDFXMLSinkObserver* obs = NS_STATIC_CAST(nsIRDFXMLSinkObserver*, mObservers[i]);
nsIRDFXMLDataSourceObserver* obs = (nsIRDFXMLDataSourceObserver*) mObservers[i];
RDFXMLDataSourceImpl::Resume(void){#ifdef PR_LOGGING    nsCAutoString spec;    if (mURL) {        mURL->GetSpec(spec);    }    PR_LOG(gLog, PR_LOG_ALWAYS,           ("rdfxml[%p] resume(%s)", this, spec.get()));#endif        for (PRInt32 i = mObservers.Count() - 1; i >= 0; --i) {        nsIRDFXMLSinkObserver* obs =            NS_STATIC_CAST(nsIRDFXMLSinkObserver*, mObservers[i]);        obs->OnResume(this);    }    return NS_OK;}