return it->QueryInterface(kICSSDeclarationIID, (void **) aInstancePtrResult);
return it->QueryInterface(NS_GET_IID(nsICSSDeclaration), (void **) aInstancePtrResult);
  NS_NewCSSDeclaration(nsICSSDeclaration** aInstancePtrResult){  if (aInstancePtrResult == nsnull) {    return NS_ERROR_NULL_POINTER;  }  CSSDeclarationImpl  *it;  NS_NEWXPCOM(it, CSSDeclarationImpl);  if (nsnull == it) {    return NS_ERROR_OUT_OF_MEMORY;  }  return it->QueryInterface(kICSSDeclarationIID, (void **) aInstancePtrResult);}