nsBookmarksService::OnUnassert(nsIRDFResource* aSource,
nsBookmarksService::OnUnassert(nsIRDFDataSource* aDataSource, nsIRDFResource* aSource,
nsBookmarksService::OnUnassert(nsIRDFResource* aSource,			       nsIRDFResource* aProperty,			       nsIRDFNode* aTarget){	if (mObservers) {		nsresult rv;		PRUint32 count;		rv = mObservers->Count(&count);		if (NS_FAILED(rv)) return rv;		for (PRInt32 i = 0; i < PRInt32(count); ++i) {			nsIRDFObserver* obs =				NS_REINTERPRET_CAST(nsIRDFObserver*, mObservers->ElementAt(i));			(void) obs->OnUnassert(aSource, aProperty, aTarget);			NS_RELEASE(obs);		}	}	return NS_OK;}