Seed test for SyncUI: sign in successfully with mocks.

chrome/test/data/webui/chrome_send_browsertest.js

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Tests to ensure that chrome.send mocking works as expected.
  * @author scr@chromium.org (Sheridan Rawlins)
  * @see test_api.js
  */
 
@@ skipping 14 matching lines @@
    * @type {?string}
    * @override
    */
   typedefCppFixture: null,
 
   /** @inheritDoc */
   browsePreload: DUMMY_URL,
 
   /** @inheritDoc */
   setUp: function() {
-    // Set up a mock handler class to catch the 'checkSend' message.
-    function MockHandler() {}
-    MockHandler.prototype = {
-      checkSend: function() {},
-    };
-    this.mockHandler = mock(MockHandler);
-    registerMockMessageCallbacks(this.mockHandler, MockHandler);
+    this.makeAndRegisterMockHandler(['checkSend']);
   }
 };
 
 // Test that chrome.send can be mocked outside the preLoad method.
 TEST_F('ChromeSendWebUITest', 'NotInPreload', function() {
   this.mockHandler.expects(once()).checkSend();
   chrome.send('checkSend');
 });
 
 /**
  * Test fixture for chrome send WebUI testing with passthrough.
  * @constructor
  * @extends {ChromeSendWebUITest}
  */
 function ChromeSendPassthroughWebUITest() {}
 
 ChromeSendPassthroughWebUITest.prototype = {
   __proto__: ChromeSendWebUITest.prototype,
 };
 
 // Test that the mocked chrome.send can call the original.
 TEST_F('ChromeSendPassthroughWebUITest', 'CanCallOriginal', function() {
   chrome.send('expectCheckSend');
   this.mockHandler.expects(once()).checkSend().
       will(callFunction(function() {
                           chrome.originalSend('checkSend');
                         }));
   chrome.send('checkSend');
 });