sync: Add UI code for per type debug counters

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.
 
 // require cr.js
 // require cr/event_target.js
 // require cr/util.js
 
 cr.define('chrome.sync', function() {
   'use strict';
@@ skipping 36 matching lines @@
 
   /**
    * Registers to receive a stream of events through
    * chrome.sync.dispatchEvent().
    */
   var registerForEvents = function() {
     chrome.send('registerForEvents');
   };
 
   /**
+   * Registers to receive a stream of status counter update events
+   * chrome.sync.dispatchEvent().
+   */
+  var registerForPerTypeCounters = function() {
+    chrome.send('registerForPerTypeCounters');
+  }
+
+  /**
    * Asks the browser to refresh our snapshot of sync state.  Should result
    * in an onAboutInfoUpdated event being emitted.
    */
   var requestUpdatedAboutInfo = function() {
     chrome.send('requestUpdatedAboutInfo');
   };
 
   /**
    * Asks the browser to send us the list of registered types.  Should result
    * in an onReceivedListOfTypes event being emitted.
@@ skipping 37 matching lines @@
     requestCallbacks[id] = undefined;
   };
 
   return {
     makeTimer: makeTimer,
     dispatchEvent: dispatchEvent,
     events: new cr.EventTarget(),
     getAllNodes: getAllNodes,
     getAllNodesCallback: getAllNodesCallback,
     registerForEvents: registerForEvents,
+    registerForPerTypeCounters: registerForPerTypeCounters,
     requestUpdatedAboutInfo: requestUpdatedAboutInfo,
     requestListOfTypes: requestListOfTypes,
   };
 });