MD Settings: remove unsupported routes from guest-mode.

chrome/browser/resources/settings/search_page/search_page.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
  * 'settings-search-page' is the settings page containing search settings.
  */
 Polymer({
   is: 'settings-search-page',
@@ skipping 57 matching lines @@
 
     // Google Now cards in the launcher
     cr.addWebUIListener(
         'google-now-availability-changed',
         this.googleNowAvailabilityUpdate_.bind(this));
     this.browserProxy_.getGoogleNowAvailability().then(function(available) {
       this.googleNowAvailabilityUpdate_(available);
     }.bind(this));
 
     this.focusConfig_ = new Map();
-    this.focusConfig_.set(
-        settings.Route.SEARCH_ENGINES.path, '#subpage-trigger .subpage-arrow');
+    if (settings.routes.SEARCH_ENGINES) {
+      this.focusConfig_.set(
+          settings.routes.SEARCH_ENGINES.path,
+          '#subpage-trigger .subpage-arrow');
+    }
   },
 
   /** @private */
   onChange_: function() {
     var select = /** @type {!HTMLSelectElement} */ (this.$$('select'));
     var searchEngine = this.searchEngines_[select.selectedIndex];
     this.browserProxy_.setDefaultSearchEngine(searchEngine.modelIndex);
   },
 
   /** @private */
   onDisableExtension_: function() {
     this.fire('refresh-pref', 'default_search_provider.enabled');
   },
 
   /** @private */
   onManageSearchEnginesTap_: function() {
-    settings.navigateTo(settings.Route.SEARCH_ENGINES);
+    settings.navigateTo(settings.routes.SEARCH_ENGINES);
   },
 
   /**
    * @param {!Event} event
    * @private
    */
   onHotwordSearchEnableChange_: function(event) {
     // Do not set the pref directly, allow Chrome to run the setup app instead.
     this.browserProxy_.setHotwordSearchEnabled(
         !!this.hotwordSearchEnablePref_.value);
@@ skipping 78 matching lines @@
 
   /**
    * @param {!chrome.settingsPrivate.PrefObject} pref
    * @return {boolean}
    * @private
    */
   isDefaultSearchEngineEnforced_: function(pref) {
     return pref.enforcement == chrome.settingsPrivate.Enforcement.ENFORCED;
   },
 });