Revert 285661 "Remove some dead app host code."

trunk/src/chrome/installer/util/chrome_app_host_distribution.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.
 //
 // This file defines a specific implementation of BrowserDistribution class for
 // Chrome App Host. It overrides the bare minimum of methods necessary to get a
 // Chrome App Host installer that does not interact with Google Chrome or
 // Chromium installations.
 
 #include "chrome/installer/util/chrome_app_host_distribution.h"
 
 #include "base/strings/string_util.h"
 #include "chrome/common/net/test_server_locations.h"
 #include "chrome/installer/util/channel_info.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/install_util.h"
 #include "chrome/installer/util/l10n_string_util.h"
 #include "chrome/installer/util/updating_app_registration_data.h"
 
 #include "installer_util_strings.h"  // NOLINT
 
+namespace {
+
+const wchar_t kChromeAppHostGuid[] = L"{FDA71E6F-AC4C-4a00-8B70-9958A68906BF}";
+
+}  // namespace
+
 ChromeAppHostDistribution::ChromeAppHostDistribution()
     : BrowserDistribution(
           CHROME_APP_HOST,
           scoped_ptr<AppRegistrationData>(
-              new UpdatingAppRegistrationData(installer::kAppLauncherGuid))) {
+              new UpdatingAppRegistrationData(kChromeAppHostGuid))) {
 }
 
 base::string16 ChromeAppHostDistribution::GetBaseAppName() {
   return L"Google Chrome App Launcher";
 }
 
 base::string16 ChromeAppHostDistribution::GetBrowserProgIdPrefix() {
   NOTREACHED();
   return base::string16();
 }
@@ skipping 80 matching lines @@
 
 void ChromeAppHostDistribution::UpdateInstallStatus(bool system_install,
     installer::ArchiveType archive_type,
     installer::InstallStatus install_status) {
 #if defined(GOOGLE_CHROME_BUILD)
   GoogleUpdateSettings::UpdateInstallStatus(system_install,
       archive_type, InstallUtil::GetInstallReturnCode(install_status),
       kChromeAppHostGuid);
 #endif
 }