Add default icon to app_host.exe, and use it in shortcuts during installation.

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/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 "installer_util_strings.h"  // NOLINT
 
 namespace {
 
-#if defined(GOOGLE_CHROME_BUILD)
-const int kAppListIconIndex = 5;
-#else
-const int kAppListIconIndex = 1;
-#endif
 const wchar_t kChromeAppHostGuid[] = L"{FDA71E6F-AC4C-4a00-8B70-9958A68906BF}";
 
 }  // namespace
 
 ChromeAppHostDistribution::ChromeAppHostDistribution()
     : BrowserDistribution(CHROME_APP_HOST) {
 }
 
 string16 ChromeAppHostDistribution::GetAppGuid() {
   return kChromeAppHostGuid;
@@ skipping 92 matching lines @@
 }
 
 bool ChromeAppHostDistribution::CanSetAsDefault() {
   return false;
 }
 
 bool ChromeAppHostDistribution::CanCreateDesktopShortcuts() {
   return true;
 }
 
-int ChromeAppHostDistribution::GetIconIndex() {
-  return kAppListIconIndex;
+string16 ChromeAppHostDistribution::GetIconFilename() {
+  return installer::kChromeAppHostExe;
 }
 
 bool ChromeAppHostDistribution::GetCommandExecuteImplClsid(
     string16* handler_class_uuid) {
   return false;
 }
 
 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
 }