MD Bookmarks: Prevent navigating to invalid folders

chrome/browser/resources/md_bookmarks/router.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.
 
 Polymer({
   /**
    * This element is a one way bound interface that routes the page URL to
    * the searchTerm and selectedId. Clients must initialize themselves by
    * reading the router's fields after attach.
    */
@@ skipping 40 matching lines @@
       this.searchTerm_ = searchTerm;
       this.dispatch(bookmarks.actions.setSearchTerm(searchTerm));
     }
   },
 
   /** @private */
   onFolderChanged_: function() {
     var selectedId = this.queryParams_.id;
     if (selectedId && selectedId != this.selectedId_) {
       this.selectedId_ = selectedId;
-      this.dispatch(bookmarks.actions.selectFolder(selectedId));
+      this.dispatch(
+          bookmarks.actions.selectFolder(selectedId, this.getState().nodes));
     }
   },
 
   /** @private */
   onStateChanged_: function() {
     this.debounce('updateQueryParams', this.updateQueryParams_.bind(this));
   },
 
   /** @private */
   updateQueryParams_: function() {
     if (this.searchTerm_)
       this.queryParams_ = {q: this.searchTerm_};
     else
       this.queryParams_ = {id: this.selectedId_};
   },
 });