[Sync] Split DirectoryChangeListener for thread-safety

chrome/chrome.gyp

 # Copyright (c) 2011 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': {
     'chromium_code': 1,
 
     'variables': {
       'version_py_path': 'tools/build/version.py',
       'version_path': 'VERSION',
@@ skipping 637 matching lines @@
         'browser/sync/engine/syncer_util.cc',
         'browser/sync/engine/syncer_util.h',
         'browser/sync/engine/syncproto.h',
         'browser/sync/engine/update_applicator.cc',
         'browser/sync/engine/update_applicator.h',
         'browser/sync/engine/verify_updates_command.cc',
         'browser/sync/engine/verify_updates_command.h',
         'browser/sync/js_arg_list.cc',
         'browser/sync/js_arg_list.h',
         'browser/sync/js_backend.h',
-        'browser/sync/js_directory_change_listener.cc',
-        'browser/sync/js_directory_change_listener.h',
+        'browser/sync/js_transaction_observer.cc',
+        'browser/sync/js_transaction_observer.h',
         'browser/sync/js_event_details.cc',
         'browser/sync/js_event_details.h',
         'browser/sync/js_event_handler.h',
         'browser/sync/js_event_handler_list.cc',
         'browser/sync/js_event_handler_list.h',
         'browser/sync/js_event_router.h',
         'browser/sync/js_frontend.h',
         'browser/sync/js_sync_manager_observer.cc',
         'browser/sync/js_sync_manager_observer.h',
         'browser/sync/protocol/proto_enum_conversions.cc',
@@ skipping 10 matching lines @@
         'browser/sync/sessions/sync_session.cc',
         'browser/sync/sessions/sync_session.h',
         'browser/sync/sessions/sync_session_context.cc',
         'browser/sync/sessions/sync_session_context.h',
         'browser/sync/shared_value.h',
         'browser/sync/syncable/autofill_migration.h',
         'browser/sync/syncable/blob.h',
         'browser/sync/syncable/dir_open_result.h',
         'browser/sync/syncable/directory_backing_store.cc',
         'browser/sync/syncable/directory_backing_store.h',
-        'browser/sync/syncable/directory_change_listener.h',
+        'browser/sync/syncable/directory_change_delegate.h',
         'browser/sync/syncable/directory_event.h',
         'browser/sync/syncable/directory_manager.cc',
         'browser/sync/syncable/directory_manager.h',
         'browser/sync/syncable/model_type.cc',
         'browser/sync/syncable/model_type.h',
         'browser/sync/syncable/model_type_payload_map.cc',
         'browser/sync/syncable/model_type_payload_map.h',
         'browser/sync/syncable/nigori_util.cc',
         'browser/sync/syncable/nigori_util.h',
         'browser/sync/syncable/syncable-inl.h',
         'browser/sync/syncable/syncable.cc',
         'browser/sync/syncable/syncable.h',
         'browser/sync/syncable/syncable_changes_version.h',
         'browser/sync/syncable/syncable_columns.h',
         'browser/sync/syncable/syncable_id.cc',
         'browser/sync/syncable/syncable_id.h',
         'browser/sync/syncable/syncable_enum_conversions.cc',
         'browser/sync/syncable/syncable_enum_conversions.h',
+        'browser/sync/syncable/transaction_observer.h',
         'browser/sync/util/cryptographer.cc',
         'browser/sync/util/cryptographer.h',
         'browser/sync/util/dbgq.h',
         'browser/sync/util/extensions_activity_monitor.cc',
         'browser/sync/util/extensions_activity_monitor.h',
+        'browser/sync/util/logging.cc',
+        'browser/sync/util/logging.h',
         'browser/sync/util/nigori.cc',
         'browser/sync/util/nigori.h',
         'browser/sync/util/user_settings.cc',
         'browser/sync/util/user_settings.h',
         'browser/sync/util/user_settings_posix.cc',
         'browser/sync/util/user_settings_win.cc',
       ],
       'include_dirs': [
         '..',
       ],
@@ skipping 945 matching lines @@
       }],  # targets
     }],  # os_posix == 1 and OS != "mac"
   ],  # 'conditions'
 }
 
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