Implement an AutoLaunch experiment for Chrome for certain brand codes.

chrome/installer/setup/setup_main.cc

 // Copyright (c) 2011 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.
 
 #include <windows.h>
 #include <msi.h>
 #include <shellapi.h>
 #include <shlobj.h>
 
 #include <string>
@@ skipping 16 matching lines @@
 #include "base/win/windows_version.h"
 #include "breakpad/src/client/windows/handler/exception_handler.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/installer/setup/chrome_frame_quick_enable.h"
 #include "chrome/installer/setup/chrome_frame_ready_mode.h"
 #include "chrome/installer/setup/install.h"
 #include "chrome/installer/setup/install_worker.h"
 #include "chrome/installer/setup/setup_constants.h"
 #include "chrome/installer/setup/setup_util.h"
 #include "chrome/installer/setup/uninstall.h"
+#include "chrome/installer/util/auto_launch_util.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/channel_info.h"
 #include "chrome/installer/util/delete_after_reboot_helper.h"
 #include "chrome/installer/util/delete_tree_work_item.h"
 #include "chrome/installer/util/google_update_constants.h"
 #include "chrome/installer/util/google_update_settings.h"
 #include "chrome/installer/util/helper.h"
 #include "chrome/installer/util/html_dialog.h"
 #include "chrome/installer/util/install_util.h"
 #include "chrome/installer/util/installation_state.h"
@@ skipping 664 matching lines @@
         if (install_status == installer::FIRST_INSTALL_SUCCESS) {
           VLOG(1) << "First install successful.";
           if (chrome_install) {
             // We never want to launch Chrome in system level install mode.
             bool do_not_launch_chrome = false;
             prefs.GetBool(
                 installer::master_preferences::kDoNotLaunchChrome,
                 &do_not_launch_chrome);
             if (!system_install && !do_not_launch_chrome)
               chrome_install->LaunchChrome(installer_state.target_path());
+
+            // Add auto-launch key if specified in master preferences.

[grt (UTC plus 2), 2011/11/29 18:55:45]

i think this belongs in install.cc's InstallOrUpdateProduct.

also, this will only be hit for new installs (not for updates).  is that
intended?

add corresponding code to remove the value in uninstall.cc's UninstallProduct. 
you may need to take care to remove it only if it indicates the
being-uninstalled Chrome (i.e., you wouldn't want to remove it if user-level
Chrome was being uninstalled and the AutoRun entry for the user pointed to a
system-level Chrome install).

[Finnur, 2011/11/29 23:48:30]

Moved.
Yes. This is only activated with new brand codes. I don't see the point in
drafting already existing users into the experiment.
We only put this in the Run key for the user installing the product, not all
users. So, I've added code to just remove it if it is found.

+            bool auto_launch_chrome = false;
+            prefs.GetBool(
+                installer::master_preferences::kAutoLaunchChrome,
+                &auto_launch_chrome);
+            if (auto_launch_chrome) {
+              auto_launch_util::SetIsAutoLaunched(
+                  true, installer_state.target_path());
+            }
           }
         } else if ((install_status == installer::NEW_VERSION_UPDATED) ||
                    (install_status == installer::IN_USE_UPDATED)) {
           const Product* chrome = installer_state.FindProduct(
               BrowserDistribution::CHROME_BROWSER);
           if (chrome != NULL)
             installer::RemoveChromeLegacyRegistryKeys(chrome->distribution());
         }
       }
     }
@@ skipping 609 matching lines @@
   if (!(installer_state.is_msi() && is_uninstall))
     // Note that we allow the status installer::UNINSTALL_REQUIRES_REBOOT
     // to pass through, since this is only returned on uninstall which is
     // never invoked directly by Google Update.
     return_code = InstallUtil::GetInstallReturnCode(install_status);
 
   VLOG(1) << "Installation complete, returning: " << return_code;
 
   return return_code;
 }