return it->QueryInterface(NS_GET_IID(nsICSSStyleRule), (void **) aInstancePtrResult);
return CallQueryInterface(it, aInstancePtrResult);
  NS_NewCSSStyleRule(nsICSSStyleRule** aInstancePtrResult, const nsCSSSelector& aSelector){  if (aInstancePtrResult == nsnull) {    return NS_ERROR_NULL_POINTER;  }  CSSStyleRuleImpl  *it = new CSSStyleRuleImpl(aSelector);  if (nsnull == it) {    return NS_ERROR_OUT_OF_MEMORY;  }  return it->QueryInterface(NS_GET_IID(nsICSSStyleRule), (void **) aInstancePtrResult);}