NS_IMETHOD RemoveObserver(nsIRDFObserver* n) { return mInner->RemoveObserver(n); }
NS_IMETHOD RemoveObserver(nsIRDFObserver* aObserver) { return mInner->RemoveObserver(aObserver); }
    NS_IMETHOD RemoveObserver(nsIRDFObserver* n) {        return mInner->RemoveObserver(n);    }