void nsTableFrame::AppendRowGroups(nsIPresContext& aPresContext,
void nsTableFrame::AppendRowGroups(nsPresContext& aPresContext,
void nsTableFrame::AppendRowGroups(nsIPresContext& aPresContext,                                   nsIFrame*       aFirstRowGroupFrame){  if (aFirstRowGroupFrame) {    nsTableCellMap* cellMap = GetCellMap();    if (cellMap) {      nsFrameList newList(aFirstRowGroupFrame);      InsertRowGroups(aPresContext, aFirstRowGroupFrame, newList.LastChild());    }  }}