MD Settings: Replace paper-menu with paper-listbox in a few places.

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

 // Copyright 2015 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 Suite of tests for settings-dropdown-menu. */
 cr.define('settings_dropdown_menu', function() {
   function registerTests() {
     suite('SettingsDropdownMenu', function() {
       // Import settings_dropdown_menu.html before running suite.
       suiteSetup(function() {
         return Promise.all([
           PolymerTest.importHtml('chrome://md-settings/i18n_setup.html'),
           PolymerTest.importHtml(
               'chrome://md-settings/controls/settings_dropdown_menu.html'),
         ]);
       });
 
       /** @type {SettingsDropdownMenu} */
       var dropdown;
 
       /**
-       * The IronSelectable (paper-menu) used internally by the dropdown menu.
+       * The IronSelectable (paper-listbox) used internally by the dropdown
+       * menu.
        * @type {Polymer.IronSelectableBehavior}
        */
       var selectable;
 
       setup(function() {
         PolymerTest.clearBody();
         dropdown = document.createElement('settings-dropdown-menu');
-        selectable = dropdown.$$('paper-menu');
+        selectable = dropdown.$$('paper-listbox');
         document.body.appendChild(dropdown);
       });
 
       test('with number options', function testNumberOptions() {
         dropdown.pref = {
           key: 'test.number',
           type: chrome.settingsPrivate.PrefType.NUMBER,
           value: 100,
         };
         dropdown.menuOptions = [{value: 100, name: 'Option 100'},
@@ skipping 59 matching lines @@
         // Pref should not have changed.
         assertEquals('f', dropdown.pref.value);
       });
     });
   }
 
   return {
     registerTests: registerTests,
   };
 });