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

chrome/chrome_browser.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',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
       'dependencies': [
         'app/policy/cloud_policy_codegen.gyp:policy',
         'autofill_regexes',
         'browser_extensions',
         'browser_ui',
         'browser/performance_monitor/performance_monitor.gyp:performance_monitor',
         'cert_logger_proto',
         'chrome_resources.gyp:chrome_extra_resources',
         'chrome_resources.gyp:chrome_resources',
         'chrome_resources.gyp:chrome_strings',
         'chrome_resources.gyp:platform_locale_settings',
         'chrome_resources.gyp:theme_resources',
         'common',
         'common/extensions/api/api.gyp:api',
         'common_net',
         'debugger',
         'in_memory_url_index_cache_proto',
         'installer_util',
+        'launcher_support',
         'safe_browsing_proto',
         'safe_browsing_report_proto',
         'feedback_proto',
         'variations_seed_proto',
         '../build/temp_gyp/googleurl.gyp:googleurl',
         '../content/content.gyp:content_browser',
         '../content/content.gyp:content_common',
         '../crypto/crypto.gyp:crypto',
         '../google_apis/google_apis.gyp:google_apis',
         '../media/media.gyp:media',
@@ skipping 2788 matching lines @@
           'variables': {
             'jni_gen_dir': 'chrome',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
       ],
      },
     ],
   ],
 }