MD Bookmarks: Prevent navigating to invalid folders

chrome/browser/resources/md_bookmarks/store_client.js

Index: chrome/browser/resources/md_bookmarks/store_client.js
diff --git a/chrome/browser/resources/md_bookmarks/store_client.js b/chrome/browser/resources/md_bookmarks/store_client.js
index 6cea153d2f3231cbf5817df3b4a1425e45ad4a8a..d9442ec5c81a478459bb4de1c5bb87de2523b72d 100644
--- a/chrome/browser/resources/md_bookmarks/store_client.js
+++ b/chrome/browser/resources/md_bookmarks/store_client.js
@@ -62,12 +62,21 @@ cr.define('bookmarks', function() {
     /**
      * 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} action
      */
     dispatch: function(action) {
       bookmarks.Store.getInstance().handleAction(action);
     },
 
+    /**
+     * Helper to dispatch a DeferredAction to the store, which will
+     * asynchronously perform updates to the store data and UI.
+     * @param {DeferredAction} action
+     */
+    dispatchAsync: function(action) {
+      bookmarks.Store.getInstance().handleDeferredAction(action);
+    },
+
     /** @param {string} newState */
     onStateChanged: function(newState) {
       this.watches_.forEach(function(watch) {