Added uma for pin unlock set up.

chrome/browser/resources/options/browser_options.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.
 
 cr.exportPath('options');
 
 /**
  * @typedef {{actionLinkText: (string|undefined),
  *            childUser: (boolean|undefined),
  *            hasError: (boolean|undefined),
@@ skipping 420 matching lines @@
 
         $('manage-accounts-button').onclick = function(event) {
           PageManager.showPageByName('accounts');
           chrome.send('coreOptionsUserMetricsAction',
               ['Options_ManageAccounts']);
         };
 
         if (loadTimeData.getBoolean('showQuickUnlockSettings')) {
           $('manage-screenlock').onclick = function(event) {
             PageManager.showPageByName('quickUnlockConfigureOverlay');
+            recordLockScreenProgress(LockScreenProgress.START_SCREEN_LOCK);

[Dan Beam, 2016/09/16 21:43:15]

where is this method included from?  i don't see an addition of your new
lock_screen_constants.js to /options/

[sammiequon, 2016/09/17 00:08:15]

I'm not quite sure where to add this file, is options_bundle.js the place to add
it?

[Dan Beam, 2016/09/17 00:36:03]

how about a <script> or <link rel=import> in browser_options.html

[sammiequon, 2016/09/21 18:22:43]

Done.

           };
           $('manage-screenlock').hidden = false;
         }
       } else {
         $('import-data').onclick = function(event) {
           ImportDataOverlay.show();
           chrome.send('coreOptionsUserMetricsAction', ['Import_ShowDlg']);
         };
 
         if ($('themes-native-button')) {
@@ skipping 1960 matching lines @@
 
       settings.hidden = !isVisible;
     };
   }
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 });