Rename Date to DateTime.

pkg/oauth2/test/client_test.dart

 // Copyright (c) 2012, 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.
 
 library client_test;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:json' as JSON;
 import 'dart:uri';
@@ skipping 17 matching lines @@
   future.catchError(expectAsync1((AsyncError e) {
     expect(predicate(e.error), isTrue);
   }));
 }
 
 void main() {
   group('with expired credentials', () {
     setUp(createHttpClient);
 
     test("that can't be refreshed throws an ExpirationException on send", () {
-      var expiration = new Date.now().subtract(new Duration(hours: 1));
+      var expiration = new DateTime.now().subtract(new Duration(hours: 1));
       var credentials = new oauth2.Credentials(
           'access token', null, null, [], expiration);
       var client = new oauth2.Client('identifier', 'secret', credentials,
           httpClient: httpClient);
 
       expectFutureThrows(client.get(requestUri),
                          (e) => e is oauth2.ExpirationException);
     });
 
     test("that can be refreshed refreshes the credentials and sends the "
         "request", () {
-      var expiration = new Date.now().subtract(new Duration(hours: 1));
+      var expiration = new DateTime.now().subtract(new Duration(hours: 1));
       var credentials = new oauth2.Credentials(
           'access token', 'refresh token', tokenEndpoint, [], expiration);
       var client = new oauth2.Client('identifier', 'secret', credentials,
           httpClient: httpClient);
 
       httpClient.expectRequest((request) {
         expect(request.method, equals('POST'));
         expect(request.url.toString(), equals(tokenEndpoint.toString()));
         return new Future.immediate(new http.Response(JSON.stringify({
           'access_token': 'new access token',
@@ skipping 165 matching lines @@
         return new Future.immediate(new http.Response('bad job', 401,
                 headers: {'www-authenticate': 'Bearer'}));
       });
 
       expect(
           client.get(requestUri).then((response) => response.statusCode),
           completion(equals(401)));
     });
   });
 }