Remove deprecated ms arguments for Timer and Future.

tests/standalone/io/http_auth_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:async';
 import 'dart:crypto';
 import 'dart:io';
 import 'dart:isolate';
 import 'dart:uri';
 import 'dart:utf';
@@ skipping 150 matching lines @@
     HttpClient client = new HttpClient();
     bool passwordChanged = false;
 
     client.authenticate = (Uri url, String scheme, String realm) {
       Expect.equals("Basic", scheme);
       Expect.equals("realm", realm);
       String username = url.path.substring(1, 6);
       String password = url.path.substring(1, 6);
       if (passwordChanged) password = "${password}1";
       Completer completer = new Completer();
-      new Timer(10, (_) {
+      new Timer(const Duration(milliseconds: 10), () {
         client.addCredentials(
             url, realm, new HttpClientBasicCredentials(username, password));
         completer.complete(true);
       });
       return completer.future;
     };
 
     Future makeRequest(Uri url) {
       return client.getUrl(url)
         .then((HttpClientRequest request) => request.close())
@@ skipping 77 matching lines @@
 main() {
   testUrlUserInfo();
   testBasicNoCredentials();
   testBasicCredentials();
   testBasicAuthenticateCallback();
   // These teste are not normally run. They can be used for locally
   // testing with another web server (e.g. Apache).
   //testLocalServerBasic();
   //testLocalServerDigest();
 }