[sync] Add typed url sync metadata to the history db

components/history/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.
 
 static_library("browser") {
   sources = [
     "delete_directive_handler.cc",
     "delete_directive_handler.h",
     "download_constants.h",
     "download_database.cc",
@@ skipping 48 matching lines @@
     "top_sites_backend.h",
     "top_sites_cache.cc",
     "top_sites_cache.h",
     "top_sites_database.cc",
     "top_sites_database.h",
     "top_sites_impl.cc",
     "top_sites_impl.h",
     "top_sites_observer.h",
     "typed_url_data_type_controller.cc",
     "typed_url_data_type_controller.h",
+    "typed_url_sync_metadata_database.cc",
+    "typed_url_sync_metadata_database.h",
     "typed_url_syncable_service.cc",
     "typed_url_syncable_service.h",
     "url_database.cc",
     "url_database.h",
     "url_row.cc",
     "url_row.h",
     "url_utils.cc",
     "url_utils.h",
     "visit_database.cc",
     "visit_database.h",
     "visit_delegate.cc",
     "visit_delegate.h",
     "visit_tracker.cc",
     "visit_tracker.h",
     "visitsegment_database.cc",
     "visitsegment_database.h",
     "web_history_service.cc",
     "web_history_service.h",
     "web_history_service_observer.h",
   ]
 
   public_deps = [
+    "//components/sync/protocol",
     "//skia",
   ]
 
   deps = [
     "//base",
     "//base:i18n",
     "//components/data_use_measurement/core",
     "//components/favicon_base",
     "//components/history/core/common",
     "//components/keyed_service/core",
@@ skipping 86 matching lines @@
     "history_backend_db_unittest.cc",
     "history_backend_unittest.cc",
     "history_database_unittest.cc",
     "history_querying_unittest.cc",
     "history_service_unittest.cc",
     "history_types_unittest.cc",
     "thumbnail_database_unittest.cc",
     "top_sites_cache_unittest.cc",
     "top_sites_database_unittest.cc",
     "top_sites_impl_unittest.cc",
+    "typed_url_sync_metadata_database_unittest.cc",
     "typed_url_syncable_service_unittest.cc",
     "url_database_unittest.cc",
     "url_utils_unittest.cc",
     "visit_database_unittest.cc",
     "visit_tracker_unittest.cc",
     "web_history_service_unittest.cc",
   ]
   deps = [
     ":browser",
     ":unit_tests_bundle_data",
@@ skipping 11 matching lines @@
     "//sql:test_support",
     "//testing/gtest",
     "//ui/gfx",
     "//ui/gfx:test_support",
     "//url",
   ]
   if (is_android) {
     sources += [ "android/android_history_types_unittest.cc" ]
   }
 }