return mInner->Unassert(aSource, aProperty, aTarget);
if (CanAccept(aSource, aProperty, aTarget)) { return mInner->Unassert(aSource, aProperty, aTarget); } else { return NS_RDF_ASSERTION_REJECTED; }
BookmarkDataSourceImpl::Unassert(nsIRDFResource* aSource,                                 nsIRDFResource* aProperty,                                 nsIRDFNode* aTarget){    // XXX TODO: filter out unasserts we don't care about    return mInner->Unassert(aSource, aProperty, aTarget);}