return mContentFrame->ReplaceFrame (aPresContext, aPresShell, aListName, aOldFrame, aNewFrame);
if (aOldFrame == mLegendFrame) { mLegendFrame = aNewFrame; return nsContainerFrame::ReplaceFrame(aPresContext, aPresShell, aListName, aOldFrame, aNewFrame); } return mContentFrame->ReplaceFrame(aPresContext, aPresShell, aListName, aOldFrame, aNewFrame);
nsFieldSetFrame::ReplaceFrame(nsPresContext* aPresContext,                     nsIPresShell&   aPresShell,                     nsIAtom*        aListName,                     nsIFrame*       aOldFrame,                     nsIFrame*       aNewFrame){  return mContentFrame->ReplaceFrame (aPresContext,                                     aPresShell,                                     aListName,                                     aOldFrame,                                     aNewFrame);}