Invoke setup.exe to reenable updates when the update bubble is clicked.

chrome/installer/util/util_constants.cc

 // 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.
 
 #include "chrome/installer/util/util_constants.h"
 
 namespace installer {
 
 namespace switches {
 
@@ skipping 94 matching lines @@
 // specifies the full path where updated setup.exe will be stored.
 const char kNewSetupExe[] = "new-setup-exe";
 
 // Notify the installer that the OS has been upgraded.
 const char kOnOsUpgrade[] = "on-os-upgrade";
 
 // Determines whether or not EULA has been accepted at some point. Returns via
 // exit code: 0 if EULA not accepted, 1 if EULA accepted, and E_FAIL on error.
 const char kQueryEULAAcceptance[] = "query-eula-acceptance";
 
-// Register Chrome as a valid browser on the current sytem. This option
+// Requests that setup attempt to reenable autoupdates for Chrome.
+const char kReenableAutoupdates[] = "reenable-autoupdates";
+
+// Register Chrome as a valid browser on the current system. This option
 // requires that setup.exe is running as admin. If this option is specified,
 // options kInstallArchive and kUninstall are ignored.
 const char kRegisterChromeBrowser[] = "register-chrome-browser";
 
 // Used by the installer to forward the registration suffix of the
 // (un)installation in progress when launching an elevated setup.exe to finish
 // registration work.
 const char kRegisterChromeBrowserSuffix[] = "register-chrome-browser-suffix";
 
 // Specify the path to the dev build of chrome.exe the user wants to install
@@ skipping 134 matching lines @@
 const wchar_t kChromeChannelDev[] = L"dev";
 const wchar_t kChromeChannelBeta[] = L"beta";
 const wchar_t kChromeChannelStable[] = L"";
 
 const size_t kMaxAppModelIdLength = 64U;
 
 const char kCourgette[] = "courgette";
 const char kBsdiff[] = "bsdiff";
 
 }  // namespace installer