return it->QueryInterface(NS_GET_IID(nsICSSMediaRule), (void **) aInstancePtrResult);
return CallQueryInterface(it, aInstancePtrResult);
NS_NewCSSMediaRule(nsICSSMediaRule** aInstancePtrResult){  if (! aInstancePtrResult) {    return NS_ERROR_NULL_POINTER;  }  CSSMediaRuleImpl* it = new CSSMediaRuleImpl();  if (! it) {    return NS_ERROR_OUT_OF_MEMORY;  }  return it->QueryInterface(NS_GET_IID(nsICSSMediaRule), (void **) aInstancePtrResult);}