438   nsIScrollbarMediator* scrollbarMediator = do_QueryFrame(aScrollTarget);  in SetActiveScrollTarget()  local
439   if (!scrollbarMediator) {  in SetActiveScrollTarget()
444   scrollbarMediator->ScrollbarActivityStarted();  in SetActiveScrollTarget()
458   nsIScrollbarMediator* scrollbarMediator = do_QueryFrame(sActiveOwner);  in Inactivate()  local
459   if (scrollbarMediator) {  in Inactivate()
460     scrollbarMediator->ScrollbarActivityStopped();  in Inactivate()
499     nsIScrollbarMediator* scrollbarMediator = do_QueryFrame(target);  in TemporarilyActivateAllPossibleScrollTargets()  local
500     if (scrollbarMediator) {  in TemporarilyActivateAllPossibleScrollTargets()
503       scrollbarMediator->ScrollbarActivityStarted();  in TemporarilyActivateAllPossibleScrollTargets()
513       nsIScrollbarMediator* scrollbarMediator = do_QueryFrame(*scrollTarget);  in DeactivateAllTemporarilyActivatedScrollTargets()  local
514       if (scrollbarMediator) {  in DeactivateAllTemporarilyActivatedScrollTargets()
515         scrollbarMediator->ScrollbarActivityStopped();  in DeactivateAllTemporarilyActivatedScrollTargets()