AddRemoveScrollbar(mHasVerticalScrollbar, aScrollAreaSize.width, aSbSize.width, PR_TRUE);
if (!mVScrollbarBox) return PR_TRUE;  return AddRemoveScrollbar(aState, aScrollAreaSize, aOnRight, PR_FALSE, PR_TRUE);
nsGfxScrollFrameInner::AddVerticalScrollbar(const nsSize& aSbSize, nsSize& aScrollAreaSize){   AddRemoveScrollbar(mHasVerticalScrollbar, aScrollAreaSize.width, aSbSize.width, PR_TRUE);}