DOMUI Prefs: Implement inline editability for startup pages

chrome/browser/resources/options/browser_options.js

 // Copyright (c) 2010 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.
 
 cr.define('options', function() {
   const OptionsPage = options.OptionsPage;
   const ArrayDataModel = cr.ui.ArrayDataModel;
-  const ListSelectionModel = cr.ui.ListSelectionModel;
+  const ListSingleSelectionModel = cr.ui.ListSingleSelectionModel;
 
   //
   // BrowserOptions class
   // Encapsulated handling of browser options page.
   //
   function BrowserOptions() {
     OptionsPage.call(this, 'browser', templateData.browserPage, 'browserPage');
   }
 
   cr.addSingletonGetter(BrowserOptions);
@@ skipping 60 matching lines @@
 
       if (!cr.isChromeOS) {
         $('defaultBrowserUseAsDefaultButton').onclick = function(event) {
           chrome.send('becomeDefaultBrowser');
         };
       }
 
       var list = $('startupPagesShortList');
       options.browser_options.StartupPageList.decorate(list);
       list.autoExpands = true;
-      list.selectionModel = new ListSelectionModel;
+      list.selectionModel = new ListSingleSelectionModel;
 
       // Check if we are in the guest mode.
       if (cr.commandLine.options['--bwsi']) {
         // Hide the startup section.
         $('startupSection').classList.add('hidden');
       } else {
         // Initialize control enabled states.
         Preferences.getInstance().addEventListener('session.restore_on_startup',
             this.updateCustomStartupPageControlStates_.bind(this));
         Preferences.getInstance().addEventListener('homepage_is_newtabpage',
@@ skipping 277 matching lines @@
     BrowserOptions.getInstance().updateStartupPages_(pages);
     StartupPageManager.getInstance().updateStartupPages_(pages);
   };
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 
 });