private void startMacScrollbarExpandAnimator() {
    if (myDisposed || !isMacOverlayScrollbar()) return;

    if (myMouseOverScrollbarExpandLevel == 0) {
      myMouseOverScrollbarExpandAnimator.reset();
      myMouseOverScrollbarExpandAnimator.suspend();
      if (myMouseOverScrollbar) {
        myMouseOverScrollbarExpandAnimator.resume();
      }
    }
  }
private void startMacScrollbarExpandAnimator()