Start the migration of passwords from the Keychain.

components/password_manager/core/browser/BUILD.gn

 # 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.
 
 import("//third_party/protobuf/proto_library.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
 }
 
@@ skipping 23 matching lines @@
     "credential_manager_pending_request_task.h",
     "credential_manager_pending_require_user_mediation_task.cc",
     "credential_manager_pending_require_user_mediation_task.h",
     "export/csv_writer.cc",
     "export/csv_writer.h",
     "facet_manager.cc",
     "facet_manager.h",
     "facet_manager_host.h",
     "import/csv_reader.cc",
     "import/csv_reader.h",
+    "keychain_migration_status_mac.h",
     "log_receiver.h",
     "log_router.cc",
     "log_router.h",
     "login_database.cc",
     "login_database.h",
     "login_database_mac.cc",
     "login_database_posix.cc",
     "login_database_win.cc",
     "login_model.h",
     "password_autofill_manager.cc",
@@ skipping 94 matching lines @@
   public_deps = [
     ":browser",
   ]
   deps = [
     "//base",
     "//components/autofill/core/common",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }