sync: Re-implement getAllNodes WebUI function

chrome/browser/resources/sync_internals/sync_node_browser.js

 // Copyright (c) 2011 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.
 
 // require: cr.js
 // require: cr/ui.js
 // require: cr/ui/tree.js
 
 (function() {
   /**
@@ skipping 160 matching lines @@
 
   /**
    * Fetch the latest set of nodes and refresh the UI.
    */
   function refresh() {
     $('node-browser-refresh-button').disabled = true;
 
     clear();
     setLastRefreshTime('In progress since ' + (new Date()).toLocaleString());
 
-    chrome.sync.getAllNodes(function(nodes) {
+    chrome.sync.getAllNodes(function(nodeMap) {
+      // Put all nodes into one big list that ignores the type.
+      var nodes = nodeMap.
+          map(function(x) { return x.nodes; }).
+          reduce(function(a, b) { return a.concat(b); });
+
       var treeContainer = $('sync-node-tree-container');
       var tree = document.createElement('tree');
       tree.setAttribute('id', 'sync-node-tree');
       tree.setAttribute('icon-visibility', 'parent');
       treeContainer.appendChild(tree);
 
       cr.ui.decorate(tree, SyncNodeTree);
       tree.populate(nodes);
 
       setLastRefreshTime((new Date()).toLocaleString());
       $('node-browser-refresh-button').disabled = false;
     });
   }
 
   document.addEventListener('DOMContentLoaded', function(e) {
     $('node-browser-refresh-button').addEventListener('click', refresh);
     cr.ui.decorate('#sync-node-splitter', cr.ui.Splitter);
 
     // Automatically trigger a refresh the first time this tab is selected.
     $('sync-browser-tab').addEventListener('selectedChange', function f(e) {
       if (this.selected) {
         $('sync-browser-tab').removeEventListener('selectedChange', f);
         refresh();
       }
     });
   });
 
 })();