const nsString& aValue,
const nsAReadableString& aValue,
nsHTMLDListElement::StringToAttribute(nsIAtom* aAttribute,                                      const nsString& aValue,                                      nsHTMLValue& aResult){  if (aAttribute == nsHTMLAtoms::compact) {    aResult.SetEmptyValue();    return NS_CONTENT_ATTR_NO_VALUE;  }  return NS_CONTENT_ATTR_NOT_THERE;}