[MD Bookmarks] Add search.

chrome/browser/resources/md_bookmarks/app.js

Index: chrome/browser/resources/md_bookmarks/app.js
diff --git a/chrome/browser/resources/md_bookmarks/app.js b/chrome/browser/resources/md_bookmarks/app.js
index 0d79074a5202a434071f6d0b429f198882e86a21..7e7873f7d21e3d7ca808aeb9895b4a483e45434f 100644
--- a/chrome/browser/resources/md_bookmarks/app.js
+++ b/chrome/browser/resources/md_bookmarks/app.js
@@ -13,6 +13,10 @@ Polymer({
 
     /** @type {BookmarkTreeNode} */
     rootNode: Object,
+
+    searchTerm: String,
+
+    searchResult: Array,
   },
 
   /** @override */
@@ -20,4 +24,9 @@ Polymer({
     /** @type {BookmarksStoreElement} */ (this.$$('bookmarks-store'))
         .initializeStore();
   },
+
+  /** @private */
+  sidebarActive_: function() {
+    return this.searchTerm == '';
+  },
 });