sync: Remove some WebUI debug functions

chrome/browser/resources/sync_internals/data.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.
 
 (function() {
 var dumpToTextButton = $('dump-to-text');
 var dataDump = $('data-dump');
 dumpToTextButton.addEventListener('click', function(event) {
   // TODO(akalin): Add info like Chrome version, OS, date dumped, etc.
 
@@ skipping 143 matching lines @@
     var label = document.createElement('label');
     // Assigning to label.for doesn't work.
     label.setAttribute('for', type);
     label.innerText = type;
     div.appendChild(label);
 
     containerElt.appendChild(div);
   });
 }
 
-function populateDatatypes(childNodeSummaries) {
-  var types = childNodeSummaries.map(function(n) {
-    return n.type;
-  });
-  types = types.sort();
-  createTypesCheckboxes(types);
-}
-
 document.addEventListener('DOMContentLoaded', function() {
-  chrome.sync.getRootNodeDetails(function(rootNode) {
-    chrome.sync.getChildNodeIds(rootNode.id, function(childNodeIds) {
-      chrome.sync.getNodeSummariesById(childNodeIds, populateDatatypes);
-    });
+  chrome.sync.getListOfKnownTypes(function(types) {
+    types.sort();
+    createTypesCheckboxes(types);
   });
 });
 
 var dumpToFileLink = $('dump-to-file');
 dumpToFileLink.addEventListener('click', function(event) {
   chrome.sync.getAllNodes(triggerDataDownload);
 });
 })();