sync: Remove some WebUI debug functions

chrome/browser/resources/sync_internals/data.js

Index: chrome/browser/resources/sync_internals/data.js
diff --git a/chrome/browser/resources/sync_internals/data.js b/chrome/browser/resources/sync_internals/data.js
index 1e68887a3a102af87e8e82784899d955602f0360..62a669057b8a2ce496521ca91a487cd58d2161bc 100644
--- a/chrome/browser/resources/sync_internals/data.js
+++ b/chrome/browser/resources/sync_internals/data.js
@@ -161,19 +161,10 @@ function createTypesCheckboxes(types) {
   });
 }
 
-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);
   });
 });