return GetOffsetWidthFor(NS_SIDE_LEFT, aFrame, aValue);
nsROCSSPrimitiveValue *val = GetROCSSPrimitiveValue(); NS_ENSURE_TRUE(val, NS_ERROR_OUT_OF_MEMORY);  nsRect rect; GetAbsoluteFrameRect(aFrame, rect);  val->SetTwips(rect.x);  return val->QueryInterface(NS_GET_IID(nsIDOMCSSPrimitiveValue), (void **)&aValue);
nsComputedDOMStyle::GetLeft(nsIFrame *aFrame, nsIDOMCSSValue** aValue){  return GetOffsetWidthFor(NS_SIDE_LEFT, aFrame, aValue);}