drive: Add "Delta Update Status" section to chrome:drive-internals

chrome/browser/resources/chromeos/drive_internals.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.
 
 /**
  * Updates the Drive related Flags section.
  * @param {Array} flags List of dictionaries describing flags.
  */
 function updateDriveRelatedFlags(flags) {
   var ul = $('drive-related-flags');
@@ skipping 147 matching lines @@
     tr.appendChild(createElementFromText('td', app.app_name));
     tr.appendChild(createElementFromText('td', app.app_id));
     tr.appendChild(createElementFromText('td', app.object_type));
     tr.appendChild(createElementFromText('td', app.supports_create));
 
     installedAppContainer.appendChild(tr);
   }
 }
 
 /**
+ * Updates the summary about delta update status.
+ * @param {Object} deltaUpdateStatus Dictionary describing delta update status.
+ */
+function updateDeltaUpdateStatus(deltaUpdateStatus) {
+  $('push-notification-enabled').textContent =
+        deltaUpdateStatus['push-notification-enabled'];
+  $('polling-interval-sec').textContent =
+        deltaUpdateStatus['polling-interval-sec'];
+  $('last-update-check-time').textContent =
+        deltaUpdateStatus['last-update-check-time'];
+  $('last-update-check-error').textContent =
+        deltaUpdateStatus['last-update-check-error'];
+}
+
+/**
  * Creates an element named |elementName| containing the content |text|.
  * @param {string} elementName Name of the new element to be created.
  * @param {string} text Text to be contained in the new element.
  * @return {HTMLElement} The newly created HTML element.
  */
 function createElementFromText(elementName, text) {
   var element = document.createElement(elementName);
   element.appendChild(document.createTextNode(text));
   return element;
 }
@@ skipping 27 matching lines @@
     a.href = '#' + section.id;
     var li = document.createElement('li');
     li.appendChild(a);
     toc.appendChild(li);
   }
 
   window.setInterval(function() {
       chrome.send('periodicUpdate');
     }, 1000);
 });