[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 9ffe45ef5614c38f66f68b1ca47cf9a04b7c4179..89d6310e5ff74374e88fd8677a637062d7d083da 100644
--- a/chrome/browser/resources/md_bookmarks/app.js
+++ b/chrome/browser/resources/md_bookmarks/app.js
@@ -9,10 +9,12 @@ Polymer({
     selectedId: String,
 
     /** @type {BookmarkTreeNode} */
-    selectedNode: Object,
-
-    /** @type {BookmarkTreeNode} */
     rootNode: Object,
+
+    searchTerm: String,
+
+    /** @type {Array<BookmarkTreeNode>} */
+    displayedList: Array,
   },
 
   /** @override */