[MD Bookmarks] Add search.

chrome/browser/resources/md_bookmarks/app.js

 // Copyright 2016 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({
   is: 'bookmarks-app',
 
   properties: {
     selectedId: String,
 
     /** @type {BookmarkTreeNode} */
-    selectedNode: Object,
+    rootNode: Object,
 
-    /** @type {BookmarkTreeNode} */
-    rootNode: Object,
+    searchTerm: String,
+
+    displayedList: Array,
   },
 
   /** @override */
   attached: function() {
     /** @type {BookmarksStoreElement} */ (this.$$('bookmarks-store'))
         .initializeStore();
   },
+
+  /** @private */
+  sidebarActive_: function() {

[angelayang, 2017/01/12 05:04:32]

I will delete this in the next patch.

+    return this.searchTerm == '';
+  },
 });