nsMargin margin(0,0,0,0); debugSpacing->GetMargin(margin); inset += margin;
nsBoxFrameInner::GetDebugInset(nsMargin& inset){    inset.SizeTo(0,0,0,0);    if (mDebugInner)     {        nsIStyleContext* style;        if (mOuter->mHorizontal)            style = mDebugInner->mHorizontalDebugStyle;        else            style = mDebugInner->mVerticalDebugStyle;        const nsStyleSpacing* debugSpacing =        (const nsStyleSpacing*)style->GetStyleData(eStyleStruct_Spacing);        debugSpacing->GetBorderPadding(inset);    }}