Load Passwords and Autofill in the corresponding sub page.

chrome/test/data/webui/settings/settings_autofill_section_browsertest.js

 // Copyright 2016 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 Runs the Polymer Autofill Settings tests. */
 
 /** @const {string} Path to root from chrome/test/data/webui/settings/. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
@@ skipping 108 matching lines @@
   },
 
   /**
    * Creates the autofill section for the given lists.
    * @param {!Array<!chrome.passwordsPrivate.PasswordUiEntry>} passwordList
    * @param {!Array<!chrome.passwordsPrivate.ExceptionPair>} exceptionList
    * @return {!Object}
    * @private
    */
   createAutofillSection_: function(addresses, creditCards) {
+    // Override the AutofillManagerImpl for testing.
+    this.autofillManager = new TestAutofillManager();
+    this.autofillManager.data.addresses = addresses;
+    this.autofillManager.data.creditCards = creditCards;
+    AutofillManagerImpl.instance_ = this.autofillManager;
+
     var section = document.createElement('settings-autofill-section');
-    section.addresses = addresses;
-    section.creditCards = creditCards;
     document.body.appendChild(section);
     Polymer.dom.flush();
     return section;
   },
 
   /**
    * Creates the Edit Address dialog and fulfills the promise when the dialog
    * has actually opened.
    * @param {!chrome.autofillPrivate.AddressEntry} address
    * @return {!Promise<Object>}
@@ skipping 701 matching lines @@
           assertEquals(city, cols[0].value);
           assertEquals(state, cols[1].value);
           assertEquals(zip, cols[2].value);
         });
       });
     });
   });
 
   mocha.run();
 });