Start the migration of passwords from the Keychain.

components/password_manager.gypi

 # Copyright 2014 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': [
     {
       # GN version: //components/password_manager/core/browser
       'target_name': 'password_manager_core_browser',
       'type': 'static_library',
@@ skipping 41 matching lines @@
         'password_manager/core/browser/credential_manager_pending_request_task.h',
         'password_manager/core/browser/credential_manager_pending_require_user_mediation_task.cc',
         'password_manager/core/browser/credential_manager_pending_require_user_mediation_task.h',
         'password_manager/core/browser/export/csv_writer.cc',
         'password_manager/core/browser/export/csv_writer.h',
         'password_manager/core/browser/facet_manager.cc',
         'password_manager/core/browser/facet_manager.h',
         'password_manager/core/browser/facet_manager_host.h',
         'password_manager/core/browser/import/csv_reader.cc',
         'password_manager/core/browser/import/csv_reader.h',
+        'password_manager/core/browser/keychain_migration_status_mac.h',
         'password_manager/core/browser/log_receiver.h',
         'password_manager/core/browser/log_router.cc',
         'password_manager/core/browser/log_router.h',
         'password_manager/core/browser/login_database.cc',
         'password_manager/core/browser/login_database.h',
         'password_manager/core/browser/login_database_mac.cc',
         'password_manager/core/browser/login_database_posix.cc',
         'password_manager/core/browser/login_database_win.cc',
         'password_manager/core/browser/login_model.h',
         'password_manager/core/browser/password_autofill_manager.cc',
@@ skipping 193 matching lines @@
             'password_manager/content/browser/credential_manager_dispatcher.cc',
             'password_manager/content/browser/credential_manager_dispatcher.h',
             'password_manager/content/browser/password_manager_internals_service_factory.cc',
             'password_manager/content/browser/password_manager_internals_service_factory.h',
           ],
         },
       ],
     }],
   ],
 }