Add settings UI for managing defaults

chrome/browser/resources/options2/options_page.js

 // Copyright (c) 2012 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() {
   /////////////////////////////////////////////////////////////////////////////
   // OptionsPage class:
 
   /**
    * Base class for options page.
@@ skipping 61 matching lines @@
    * @param {string} pageName Page name.
    * @param {boolean} updateHistory True if we should update the history after
    *     showing the page.
    * @param {Object=} opt_propertyBag An optional bag of properties including
    *     replaceState (if history state should be replaced instead of pushed).
    * @private
    */
   OptionsPage.showPageByName = function(pageName,
                                         updateHistory,
                                         opt_propertyBag) {
+

[csilv, 2012/08/09 18:18:04]

intentional newline? (revert?)

     // If |opt_propertyBag| is non-truthy, homogenize to object.
     opt_propertyBag = opt_propertyBag || {};
 
     // Find the currently visible root-level page.
     var rootPage = null;
     for (var name in this.registeredPages) {
       var page = this.registeredPages[name];
       if (page.visible && !page.parentPage) {
         rootPage = page;
         break;
@@ skipping 807 matching lines @@
     canShowPage: function() {
       return true;
     },
   };
 
   // Export
   return {
     OptionsPage: OptionsPage
   };
 });