nsHTMLFrameInnerFrame::GetDesiredSize(nsIPresContext* aPresContext,
nsHTMLFrameOuterFrame::GetDesiredSize(nsIPresContext* aPresContext,
nsHTMLFrameInnerFrame::GetDesiredSize(nsIPresContext* aPresContext,                                      const nsHTMLReflowState& aReflowState,                                      nsHTMLReflowMetrics& aDesiredSize){  // it must be defined, but not called  NS_ASSERTION(0, "this should never be called");  aDesiredSize.width   = 0;  aDesiredSize.height  = 0;  aDesiredSize.ascent  = 0;  aDesiredSize.descent = 0;}