nsSplitterFrameImpl :: IsMouseCaptured(nsIPresContext* aPresContext)
nsSplitterFrameInner :: IsMouseCaptured(nsIPresContext* aPresContext)
nsSplitterFrameImpl :: IsMouseCaptured(nsIPresContext* aPresContext){    // get its view  nsIView* view = nsnull;  mSplitter->GetView(aPresContext, &view);  nsCOMPtr<nsIViewManager> viewMan;    if (view) {    view->GetViewManager(*getter_AddRefs(viewMan));    if (viewMan) {        nsIView* grabbingView;        viewMan->GetMouseEventGrabber(grabbingView);        if (grabbingView == view)          return PR_TRUE;    }  }  return PR_FALSE;}