Make application shortcuts point to app_host.exe, install App Host during app installation.

chrome/chrome_browser_extensions.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_extensions',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 297 matching lines @@
         'browser/extensions/api/web_request/web_request_api_helpers.cc',
         'browser/extensions/api/web_request/web_request_api_helpers.h',
         'browser/extensions/api/web_request/web_request_permissions.cc',
         'browser/extensions/api/web_request/web_request_permissions.h',
         'browser/extensions/api/web_request/web_request_time_tracker.cc',
         'browser/extensions/api/web_request/web_request_time_tracker.h',
         'browser/extensions/api/web_socket_proxy_private/web_socket_proxy_private_api.cc',
         'browser/extensions/api/web_socket_proxy_private/web_socket_proxy_private_api.h',
         'browser/extensions/api/webstore_private/webstore_private_api.cc',
         'browser/extensions/api/webstore_private/webstore_private_api.h',
+        'browser/extensions/app_host_installer_win.cc',
+        'browser/extensions/app_host_installer_win.h',
         'browser/extensions/app_notification.cc',
         'browser/extensions/app_notification.h',
         'browser/extensions/app_notification_manager.cc',
         'browser/extensions/app_notification_manager.h',
         'browser/extensions/app_notification_storage.cc',
         'browser/extensions/app_notification_storage.h',
         'browser/extensions/app_notify_channel_setup.cc',
         'browser/extensions/app_notify_channel_setup.h',
         'browser/extensions/app_notify_channel_ui.h',
         'browser/extensions/app_notify_channel_ui_impl.cc',
@@ skipping 402 matching lines @@
           'conditions': [
             ['OS=="linux" and toolkit_views==1',{
               'include_dirs': [
                 '<(INTERMEDIATE_DIR)',
                 '<(INTERMEDIATE_DIR)/chrome',
               ],
               'sources/': [
                 ['include', '^browser/extensions/'],
 
                 # Other excluded stuff.
+                ['exclude', '^browser/extensions/app_host_installer_win.cc'],

[erikwright (departed), 2012/10/03 15:58:35]

NB that you probably don't need to exclude these (I think _win.{h,cc} are
auto-excluded on other platforms).

The stuff below seems to indicate that you are right to add this, but I wonder
if (a) I'm wrong or (b) someone else also unnecessarily added these.

[huangs, 2012/10/03 20:09:47]

Since we're make this non-specific to window, this is removed regardless.

+                ['exclude', '^browser/extensions/app_host_installer_win.h'],
                 ['exclude', '^browser/extensions/browser_action_test_util_gtk.cc'],
                 ['exclude', '^browser/extensions/extension_host_mac.h'],
                 ['exclude', '^browser/extensions/extension_host_mac.mm'],
                 ['exclude', '^browser/extensions/external_registry_loader_win.cc'],
                 ['exclude', '^browser/extensions/external_registry_loader_win.h'],
               ],
             }],
             # Exclude these toolkit_views specific files again.
             # (Required because of the '^browser/extensions/' include above)
             ['toolkit_views==0', {
@@ skipping 80 matching lines @@
             'browser/extensions/app_host/update.cc',
             'browser/extensions/app_host/update.h',
             '<(SHARED_INTERMEDIATE_DIR)/chrome_version/app_host_exe_version.rc',
           ],
         },
       ],
     }, ],  # 'OS=="win"'
   ],  # 'conditions'
 }