[Sync] Display the client server traffic log in about:sync.

chrome/browser/resources/sync_internals/chrome_sync.js

 // Copyright (c) 2012 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.
 
 var chrome = chrome || {};
 // TODO(akalin): Add mocking code for e.g. chrome.send() so that we
 // can test this without rebuilding chrome.
 chrome.sync = chrome.sync || {};
 (function () {
 
@@ skipping 118 matching lines @@
 
 var syncFunctions = [
   // Sync service functions.
   'getAboutInfo',
 
   // Notification functions.  See chrome/browser/sync/engine/syncapi.h
   // for docs.
   'getNotificationState',
   'getNotificationInfo',
 
+  // Client server communication logging functions.
+  'getClientServerTraffic',
+
   // Node lookup functions.  See chrome/browser/sync/engine/syncapi.h
   // for docs.
   'getRootNodeDetails',
   'getNodeSummariesById',
   'getNodeDetailsById',
   'getChildNodeIds',
   'findNodesContainingString'
 ];
 
 for (var i = 0; i < syncFunctions.length; ++i) {
@@ skipping 12 matching lines @@
      * @return {number} The number of seconds since the timer was
      * created.
      */
     get elapsedSeconds() {
       return ((new Date()).getTime() - start.getTime()) / 1000.0;
     }
   };
 };
 
 })();