return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
nsDOMCSSValueList *valueList = GetROCSSValueList(PR_FALSE); NS_ENSURE_TRUE(valueList, NS_ERROR_OUT_OF_MEMORY);  const nsStyleTableBorder *border = nsnull; GetStyleData(eStyleStruct_TableBorder, (const nsStyleStruct*&)border, aFrame); if (border) { nsROCSSPrimitiveValue* xSpacing = GetROCSSPrimitiveValue(); if (!xSpacing) { delete valueList; return NS_ERROR_OUT_OF_MEMORY; } if (!valueList->AppendCSSValue(xSpacing)) { delete valueList; delete xSpacing; return NS_ERROR_OUT_OF_MEMORY; }  nsROCSSPrimitiveValue* ySpacing = GetROCSSPrimitiveValue(); if (!ySpacing) { delete valueList; return NS_ERROR_OUT_OF_MEMORY; } if (!valueList->AppendCSSValue(ySpacing)) { delete valueList; delete ySpacing; return NS_ERROR_OUT_OF_MEMORY; }   xSpacing->SetTwips(border->mBorderSpacingX.GetCoordValue()); ySpacing->SetTwips(border->mBorderSpacingY.GetCoordValue());  }  return CallQueryInterface(valueList, aValue);
nsComputedDOMStyle::GetBorderSpacing(nsIFrame *aFrame,                                     nsIDOMCSSPrimitiveValue*& aValue){  return NS_ERROR_DOM_NOT_SUPPORTED_ERR;}