NS_IMETHOD RemoveObserver(nsIRDFObserver* n) { return mInner->RemoveObserver(n); }
nsBookmarksService::RemoveObserver(nsIRDFObserver* aObserver) { if (! aObserver) return NS_ERROR_NULL_POINTER;  if (mObservers) { mObservers->RemoveElement(aObserver); }  return NS_OK; }
    NS_IMETHOD RemoveObserver(nsIRDFObserver* n) {        return mInner->RemoveObserver(n);    }