MD Bookmarks: Prevent navigating to invalid folders

chrome/browser/resources/md_bookmarks/store_client.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 Defines StoreClient, a Polymer behavior to tie a front-end
  * element to back-end data from the store.
  */
 
 cr.define('bookmarks', function() {
@@ skipping 41 matching lines @@
       // TODO(tsergeant): Warn if localProperty is not a defined property.
       this.watches_.push({
         localProperty: localProperty,
         valueGetter: valueGetter,
       });
     },
 
     /**
      * Helper to dispatch an action to the store, which will update the store
      * data and then (possibly) flow through to the UI.
-     * @param {Action} action
+     * @param {?Action|DeferredAction} action
      */
     dispatch: function(action) {
       bookmarks.Store.getInstance().handleAction(action);
     },
 
     /** @param {string} newState */
     onStateChanged: function(newState) {
       this.watches_.forEach(function(watch) {
         var oldValue = this[watch.localProperty];
         var newValue = watch.valueGetter(newState);
@@ skipping 16 matching lines @@
     /** @return {!BookmarksPageState} */
     getState: function() {
       return bookmarks.Store.getInstance().data;
     },
   };
 
   return {
     StoreClient: StoreClient,
   };
 });