Make the auto-launch experiment profile-aware.

chrome/browser/resources/options2/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.define('options', function() {
   const OptionsPage = options.OptionsPage;
   const ArrayDataModel = cr.ui.ArrayDataModel;
   const RepeatingButton = cr.ui.RepeatingButton;
 
   //
@@ skipping 195 matching lines @@
           });
         }
       }
 
       // Default browser section.
       if (!cr.isChromeOS) {
         $('defaultBrowserUseAsDefaultButton').addEventListener('click',
             function(event) {
               chrome.send('becomeDefaultBrowser');
             });
+
+        $('autoLaunch').addEventListener('click',

[James Hawkins, 2012/02/06 21:08:01]

nit: Use $('xx').onclick = this.handle...

+                                         this.handleAutoLaunchChanged_);
       }
 
       // Under the hood section.
       $('advancedOptionsButton').addEventListener('click', function(event) {
         OptionsPage.navigateToPage('advanced');
         chrome.send('coreOptionsUserMetricsAction',
             ['Options_OpenUnderTheHood']);
       });
     },
 
@@ skipping 90 matching lines @@
     /**
      * Sets the label for the 'Show Home page' input.
      * @param {string} label The HTML of the input label.
      * @private
      */
     updateHomePageLabel_: function(label) {
       $('home-page-label').innerHTML = label;
     },
 
     /**
+      * Shows the autoLaunch preference and initializes its checkbox value.
+      * @param {bool} enabled Whether autolaunch is enabled or or not.
+      * @private
+      */
+    updateAutoLaunchState_: function(enabled) {
+      $('autoLaunchOption').hidden = false;
+      $('autoLaunch').checked = enabled;
+    },
+
+    /**
      * Called when the value of the instant.confirm_dialog_shown preference
      * changes. Cache this value.
      * @param {Event} event Change event.
      * @private
      */
     onInstantConfirmDialogShownChanged_: function(event) {
       this.instantConfirmDialogShown_ = event.value['value'];
     },
 
     /**
@@ skipping 102 matching lines @@
     setDefaultSearchEngine_: function() {
       var engineSelect = $('defaultSearchEngine');
       var selectedIndex = engineSelect.selectedIndex;
       if (selectedIndex >= 0) {
         var selection = engineSelect.options[selectedIndex];
         chrome.send('setDefaultSearchEngine', [String(selection.value)]);
       }
     },
 
     /**
+     * Sets or clear whether Chrome should Auto-launch on computer startup.

[James Hawkins, 2012/02/06 21:08:01]

@private

+     */
+    handleAutoLaunchChanged_: function() {
+      chrome.send('toggleAutoLaunch', [Boolean($('autoLaunch').checked)]);

[James Hawkins, 2012/02/06 21:08:01]

Correct me if I'm wrong, but I don't think you need to cast to Boolean.

+    },
+
+    /**
      * Sends an asynchronous request for new autocompletion suggestions for the
      * the given query. When new suggestions are available, the C++ handler will
      * call updateAutocompleteSuggestions_.
      * @param {string} query List of autocomplete suggestions.
      * @private
      */
     requestAutocompleteSuggestions_: function(query) {
       chrome.send('requestAutocompleteSuggestions', [query]);
     },
 
@@ skipping 122 matching lines @@
     'setStartStopButtonVisible',
     'setSyncActionLinkEnabled',
     'setSyncActionLinkLabel',
     'setSyncEnabled',
     'setSyncSetupCompleted',
     'setSyncStatus',
     'setSyncStatusErrorVisible',
     'setThemesResetButtonEnabled',
     'updateAccountPicture',
     'updateAutocompleteSuggestions',
+    'updateAutoLaunchState',
     'updateHomePageLabel',
     'updateSearchEngines',
     'updateStartupPages',
   ].forEach(function(name) {
     BrowserOptions[name] = function() {
       var instance = BrowserOptions.getInstance();
       return instance[name + '_'].apply(instance, arguments);
     };
   });
 
@@ skipping 16 matching lines @@
       return BrowserOptions.getInstance().username_;
     };
   }
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 
 });