Add LocalFileSyncContext class which wires up profile-owned service and FileSystemContext(s)

webkit/fileapi/webkit_fileapi.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': 'fileapi',
       'type': '<(component)',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 78 matching lines @@
         'sandbox_file_stream_writer.cc',
         'sandbox_file_stream_writer.h',
         'sandbox_mount_point_provider.cc',
         'sandbox_mount_point_provider.h',
         'sandbox_quota_observer.cc',
         'sandbox_quota_observer.h',
         'syncable/file_change.cc',
         'syncable/file_change.h',
         'syncable/local_file_change_tracker.cc',
         'syncable/local_file_change_tracker.h',
+        'syncable/local_file_sync_context.cc',
+        'syncable/local_file_sync_context.h',
         'syncable/local_file_sync_status.cc',
         'syncable/local_file_sync_status.h',
         'syncable/sync_status_code.cc',
         'syncable/sync_status_code.h',
         'syncable/syncable_file_system_util.cc',
         'syncable/syncable_file_system_util.h',
         'task_runner_bound_observer_list.h',
         'test_mount_point_provider.cc',
         'test_mount_point_provider.h',
         'webfilewriter_base.cc',
@@ skipping 22 matching lines @@
             'media/device_media_file_util.h',
             'media/mtp_device_delegate.h',
             'media/mtp_device_map_service.cc',
             'media/mtp_device_map_service.h',
           ],
         }],
       ],
     },
   ],
 }