MD Bookmarks: Disable 'Open in Incognito Window' when Incognito is disabled

chrome/browser/resources/md_bookmarks/util.js

 // Copyright 2017 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 Utility functions for the Bookmarks page.
  */
 
 cr.define('bookmarks.util', function() {
   /**
@@ skipping 52 matching lines @@
 
     return nodeMap;
   }
 
   /** @return {!BookmarksPageState} */
   function createEmptyState() {
     return {
       nodes: {},
       selectedFolder: '0',
       closedFolders: new Set(),
+      prefs: {
+        incognitoAvailability: IncognitoAvailability.ENABLED,
+      },
       search: {
         term: '',
         inProgress: false,
         results: [],
       },
       selection: {
         items: new Set(),
         anchor: null,
       },
     };
@@ skipping 84 matching lines @@
     getDescendants: getDescendants,
     getDisplayedList: getDisplayedList,
     hasChildFolders: hasChildFolders,
     isShowingSearch: isShowingSearch,
     normalizeNode: normalizeNode,
     normalizeNodes: normalizeNodes,
     removeIdsFromMap: removeIdsFromMap,
     removeIdsFromSet: removeIdsFromSet,
   };
 });