dom-ui options: record user metrics for pref changes....

chrome/browser/resources/options/browser_options.js

 // Copyright (c) 2010 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.define('options', function() {
   const OptionsPage = options.OptionsPage;
   const ArrayDataModel = cr.ui.ArrayDataModel;
   const ListSelectionModel = cr.ui.ListSelectionModel;
 
   //
@@ skipping 21 matching lines @@
       $('startupAddButton').onclick = function(event) {
         OptionsPage.showOverlay('addStartupPageOverlay');
       };
       $('startupRemoveButton').onclick = cr.bind(
           this.removeSelectedStartupPages_, this);
       $('startupUseCurrentButton').onclick = function(event) {
         chrome.send('setStartupPagesToCurrentPages');
       };
       $('defaultSearchManageEnginesButton').onclick = function(event) {
         OptionsPage.showPageByName('searchEngines');
+        chrome.send('coreOptionsUserMetricsAction',
+            ['Options_ManageSearchEngines']);
       };
       if (!cr.isChromeOS) {
         $('defaultBrowserUseAsDefaultButton').onclick = function(event) {
           chrome.send('becomeDefaultBrowser');
         };
       }
 
       var list = $('startupPages');
       options.browser_options.StartupPageList.decorate(list);
       list.selectionModel = new ListSelectionModel;
@@ skipping 173 matching lines @@
     BrowserOptions.getInstance().addStartupPage_(url);
   };
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 
 });