mContent->NotifyStateChanged(mOldType, mOldState);
mContent->NotifyStateChanged(mOldType, mOldState, PR_TRUE);
    void Notify() {      NS_ASSERTION(mNotify, "Should not notify when notify=false");      mContent->NotifyStateChanged(mOldType, mOldState);      mOldType = mContent->Type();      mOldState = mContent->ObjectState();    }