[uber page] Remove obsolete subpage logic.

chrome/browser/resources/options2/options.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.
 
 var AddLanguageOverlay = options.AddLanguageOverlay;
 var AlertOverlay = options.AlertOverlay;
 var AutofillEditAddressOverlay = options.AutofillEditAddressOverlay;
 var AutofillEditCreditCardOverlay = options.AutofillEditCreditCardOverlay;
 var AutofillOptions = options.AutofillOptions;
 var BrowserOptions = options.BrowserOptions;
@@ skipping 33 matching lines @@
   cr.ui.decorate('input[pref][type=text]', options.PrefTextField);
   cr.ui.decorate('input[pref][type=url]', options.PrefTextField);
   cr.ui.decorate('button[pref]', options.PrefButton);
   cr.ui.decorate('#content-settings-page input[type=radio]:not(.handler-radio)',
       options.ContentSettingsRadio);
   cr.ui.decorate('#content-settings-page input[type=radio].handler-radio',
       options.HandlersEnabledRadio);
   cr.ui.decorate('span.controlled-setting-indicator',
       options.ControlledSettingIndicator);
 
-  var menuOffPattern = /(^\?|&)menu=off($|&)/;
-  var menuDisabled = menuOffPattern.test(window.location.search);
-  // document.documentElement.setAttribute('hide-menu', menuDisabled);
-  // We can't use an attribute on the html element because of webkit bug
-  // 12519. Instead, we add a class.
-  if (menuDisabled)
-    document.documentElement.classList.add('hide-menu');
-
   localStrings = new LocalStrings();
 
   // Top level pages.
   OptionsPage.register(SearchPage.getInstance());
   OptionsPage.register(BrowserOptions.getInstance());
 
   // Overlays.
   OptionsPage.registerOverlay(AddLanguageOverlay.getInstance(),
                               LanguageOptions.getInstance());
   OptionsPage.registerOverlay(AlertOverlay.getInstance());
@@ skipping 160 matching lines @@
   options.OptionsPage.willClose();
 };
 
 /**
  * Listener for the |popstate| event.
  * @param {Event} e The |popstate| event.
  */
 window.onpopstate = function(e) {
   options.OptionsPage.setState(e.state);
 };