Split NTPLoginHandler across chrome://apps and chrome://history.

chrome/browser/resources/history/other_devices.js

 // Copyright (c) 2013 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.
 
 /**
  * @fileoverview The section of the history page that shows tabs from sessions
                  on other devices.
  */
 
 ///////////////////////////////////////////////////////////////////////////////
@@ skipping 517 matching lines @@
  */
 function setForeignSessions(sessionList, isTabSyncEnabled) {
   // The other devices is shown iff tab sync is enabled.
   if (isTabSyncEnabled)
     devicesView.setSessionList(sessionList);
   else
     devicesView.clearDOM();
 }
 
 /**
- * Called when this element is initialized, and from the new tab page when
- * the user's signed in state changes,
- * @param {string} header The first line of text (unused here).
- * @param {string} subHeader The second line of text (unused here).
- * @param {string} iconURL The url for the login status icon. If this is null
- then the login status icon is hidden (unused here).
+ * Called when initialized or the user's signed in state changes,
  * @param {boolean} isUserSignedIn Is the user currently signed in?
  */
-function updateLogin(header, subHeader, iconURL, isUserSignedIn) {
+function updateSignInState(isUserSignedIn) {
   if (devicesView)
     devicesView.updateSignInState(isUserSignedIn);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // Document Functions:
 /**
  * Window onload handler, sets up the other devices view.
  */
 function load() {
   if (!loadTimeData.getBoolean('isInstantExtendedApiEnabled'))
     return;
 
-  // We must use this namespace to reuse the handler code for foreign session
-  // and login. TODO(estade): change the call site in ntp_login_handler.cc so
-  // this hack isn't necessary.
-  cr.define('ntp', function() {
-    return {
-      updateLogin: updateLogin
-    };
-  });
-
   devicesView = new DevicesView();
 
   // Create the context menu that appears when the user right clicks
   // on a device name or hit click on the button besides the device name
   document.body.appendChild(DeviceContextMenuController.getInstance().menu);
 
   var doSearch = function(e) {
     devicesView.setSearchText($('search-field').value);
   };
   $('search-field').addEventListener('search', doSearch);
   $('search-button').addEventListener('click', doSearch);
+
+  chrome.send('otherDevicesInitialized');
 }
 
 // Add handlers to HTML elements.
 document.addEventListener('DOMContentLoaded', load);