[USS] Add SyncMetadataStore interface

components/autofill/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("//build/config/chrome_build.gni")
 
 static_library("browser") {
   sources = [
     "address.cc",
     "address.h",
@@ skipping 118 matching lines @@
     "webdata/autocomplete_sync_bridge.cc",
     "webdata/autocomplete_sync_bridge.h",
     "webdata/autocomplete_syncable_service.cc",
     "webdata/autocomplete_syncable_service.h",
     "webdata/autofill_change.cc",
     "webdata/autofill_change.h",
     "webdata/autofill_data_type_controller.cc",
     "webdata/autofill_data_type_controller.h",
     "webdata/autofill_entry.cc",
     "webdata/autofill_entry.h",
-    "webdata/autofill_metadata_change_list.cc",
-    "webdata/autofill_metadata_change_list.h",
     "webdata/autofill_profile_data_type_controller.cc",
     "webdata/autofill_profile_data_type_controller.h",
     "webdata/autofill_profile_syncable_service.cc",
     "webdata/autofill_profile_syncable_service.h",
     "webdata/autofill_table.cc",
     "webdata/autofill_table.h",
     "webdata/autofill_table_encryptor.h",
     "webdata/autofill_table_encryptor_factory.cc",
     "webdata/autofill_table_encryptor_factory.h",
     "webdata/autofill_wallet_metadata_syncable_service.cc",
@@ skipping 238 matching lines @@
     "//net:test_support",
     "//sql",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/libaddressinput:util",
     "//third_party/libphonenumber",
     "//ui/base",
     "//url",
   ]
 }