Implement kiosk multiple apps feature.

extensions/extensions.gypi

 # Copyright 2015 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.
 
 {
   'variables': {
     'extensions_common_constants_sources': [
       'common/constants.cc',
       'common/constants.h',
     ],
@@ skipping 118 matching lines @@
       'common/manifest_handlers/externally_connectable.cc',
       'common/manifest_handlers/externally_connectable.h',
       'common/manifest_handlers/file_handler_info.cc',
       'common/manifest_handlers/file_handler_info.h',
       'common/manifest_handlers/icons_handler.cc',
       'common/manifest_handlers/icons_handler.h',
       'common/manifest_handlers/incognito_info.cc',
       'common/manifest_handlers/incognito_info.h',
       'common/manifest_handlers/kiosk_mode_info.cc',
       'common/manifest_handlers/kiosk_mode_info.h',
+      'common/manifest_handlers/kiosk_secondary_apps_info.cc',
+      'common/manifest_handlers/kiosk_secondary_apps_info.h',
       'common/manifest_handlers/launcher_page_info.cc',
       'common/manifest_handlers/launcher_page_info.h',
       'common/manifest_handlers/mime_types_handler.cc',
       'common/manifest_handlers/mime_types_handler.h',
       'common/manifest_handlers/oauth2_manifest_handler.cc',
       'common/manifest_handlers/oauth2_manifest_handler.h',
       'common/manifest_handlers/offline_enabled_info.cc',
       'common/manifest_handlers/offline_enabled_info.h',
       'common/manifest_handlers/options_page_info.cc',
       'common/manifest_handlers/options_page_info.h',
@@ skipping 916 matching lines @@
       'test/result_catcher.h',
       'test/test_content_utility_client.cc',
       'test/test_content_utility_client.h',
       'test/test_extensions_client.cc',
       'test/test_extensions_client.h',
       'test/test_permission_message_provider.cc',
       'test/test_permission_message_provider.h',
     ],
   },
 }