nsresult rv = aCookieService->GetCookieStringFromHttp(uri1, uri2, aCookie);
nsresult rv = aCookieService->GetCookieStringFromHttp(uri1, uri2, nsnull, aCookie);
GetACookie(nsICookieService *aCookieService, const char *aSpec1, const char *aSpec2, char **aCookie){    nsCOMPtr<nsIURI> uri1, uri2;    NS_NewURI(getter_AddRefs(uri1), aSpec1);    if (aSpec2)        NS_NewURI(getter_AddRefs(uri2), aSpec2);    printf("             \"%s\": GOT ", aSpec1);    nsresult rv = aCookieService->GetCookieStringFromHttp(uri1, uri2, aCookie);    if (NS_FAILED(rv)) printf("XXX GetCookieString() failed!\n");    if (!*aCookie) {        printf("nothing\n");    } else {        printf("\"%s\"\n", *aCookie);    }    return *aCookie != nsnull;}