arc: Initial implemetation of Chrome sync for Arc packages.

chrome/chrome_browser_ui.gypi

 # Copyright 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.
 
 {
   'variables': {
     # There are two sections of sources:
     # * "Platform"-based sources (OS, toolkit, etc.)
     # * Feature/directory-based sources (e.g., history, printing)
 
@@ skipping 747 matching lines @@
       'browser/ui/app_list/arc/arc_app_launcher.cc',
       'browser/ui/app_list/arc/arc_app_launcher.h',
       'browser/ui/app_list/arc/arc_app_list_prefs.cc',
       'browser/ui/app_list/arc/arc_app_list_prefs.h',
       'browser/ui/app_list/arc/arc_app_list_prefs_factory.cc',
       'browser/ui/app_list/arc/arc_app_list_prefs_factory.h',
       'browser/ui/app_list/arc/arc_app_model_builder.cc',
       'browser/ui/app_list/arc/arc_app_model_builder.h',
       'browser/ui/app_list/arc/arc_app_utils.cc',
       'browser/ui/app_list/arc/arc_app_utils.h',
+      'browser/ui/app_list/arc/arc_package_syncable_service.cc',
+      'browser/ui/app_list/arc/arc_package_syncable_service.h',
+      'browser/ui/app_list/arc/arc_package_syncable_service_factory.cc',
+      'browser/ui/app_list/arc/arc_package_syncable_service_factory.h',
       'browser/ui/app_list/search/arc_app_result.cc',
       'browser/ui/app_list/search/arc_app_result.h',
       'browser/ui/ash/launcher/arc_app_deferred_launcher_controller.cc',
       'browser/ui/ash/launcher/arc_app_deferred_launcher_controller.h',
       'browser/ui/ash/launcher/arc_app_deferred_launcher_item_controller.cc',
       'browser/ui/ash/launcher/arc_app_deferred_launcher_item_controller.h',
       'browser/ui/ash/launcher/arc_app_window_launcher_controller.cc',
       'browser/ui/ash/launcher/arc_app_window_launcher_controller.h',
       'browser/ui/ash/launcher/arc_app_window_launcher_item_controller.cc',
       'browser/ui/ash/launcher/arc_app_window_launcher_item_controller.h',
@@ skipping 2583 matching lines @@
           ],
           'sources': [
             '<@(chrome_browser_ui_non_mobile_sources)',
             '<@(chrome_browser_ui_omnibox_non_mobile_sources)',
           ],
         }],
       ],
     },
   ],
 }