50 return mBaseEventTarget ? mBaseEventTarget->DispatchEvent(aEvent, aAsync, _retval) : NS_ERROR_NULL_POINTER;
56 return mBaseEventTarget ? mBaseEventTarget->AddListener(aListener) : NS_ERROR_NULL_POINTER;
62 return mBaseEventTarget ? mBaseEventTarget->RemoveListener(aListener) : NS_ERROR_NULL_POINTER;