[sync] skeleton implementation of AutocompleteSyncBridge

components/webdata_services/web_data_service_wrapper.cc

 // 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.
 
 #include "components/webdata_services/web_data_service_wrapper.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
+#include "base/feature_list.h"
 #include "base/files/file_path.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "build/build_config.h"
+#include "components/autofill/core/browser/webdata/autocomplete_sync_bridge.h"
 #include "components/autofill/core/browser/webdata/autocomplete_syncable_service.h"
 #include "components/autofill/core/browser/webdata/autofill_profile_syncable_service.h"
 #include "components/autofill/core/browser/webdata/autofill_table.h"
 #include "components/autofill/core/browser/webdata/autofill_wallet_metadata_syncable_service.h"
 #include "components/autofill/core/browser/webdata/autofill_wallet_syncable_service.h"
 #include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
 #include "components/password_manager/core/browser/webdata/logins_table.h"
 #include "components/search_engines/keyword_table.h"
 #include "components/search_engines/keyword_web_data_service.h"
 #include "components/signin/core/browser/webdata/token_service_table.h"
 #include "components/signin/core/browser/webdata/token_web_data.h"
+#include "components/sync/driver/sync_driver_switches.h"
 #include "components/webdata/common/web_database_service.h"
 #include "components/webdata/common/webdata_constants.h"
 
 #if defined(OS_WIN)
 #include "components/password_manager/core/browser/webdata/password_web_data_service_win.h"
 #endif
 
 namespace {
 
 void InitSyncableServicesOnDBThread(
     scoped_refptr<base::SingleThreadTaskRunner> db_thread,
     const syncer::SyncableService::StartSyncFlare& sync_flare,
     const scoped_refptr<autofill::AutofillWebDataService>& autofill_web_data,
     const base::FilePath& context_path,
     const std::string& app_locale,
     autofill::AutofillWebDataBackend* autofill_backend) {
   DCHECK(db_thread->BelongsToCurrentThread());
 
   // Currently only Autocomplete and Autofill profiles use the new Sync API, but
   // all the database data should migrate to this API over time.
-  autofill::AutocompleteSyncableService::CreateForWebDataServiceAndBackend(
-      autofill_web_data.get(), autofill_backend);
-  autofill::AutocompleteSyncableService::FromWebDataService(
-      autofill_web_data.get())->InjectStartSyncFlare(sync_flare);
+  if (base::FeatureList::IsEnabled(switches::kSyncUSSAutocomplete)) {
+    autofill::AutocompleteSyncBridge::CreateForWebDataServiceAndBackend(
+        autofill_web_data.get(), autofill_backend);
+  } else {
+    autofill::AutocompleteSyncableService::CreateForWebDataServiceAndBackend(
+        autofill_web_data.get(), autofill_backend);
+    autofill::AutocompleteSyncableService::FromWebDataService(
+        autofill_web_data.get())
+        ->InjectStartSyncFlare(sync_flare);
+  }
 
   autofill::AutofillProfileSyncableService::CreateForWebDataServiceAndBackend(
       autofill_web_data.get(), autofill_backend, app_locale);
   autofill::AutofillWalletSyncableService::CreateForWebDataServiceAndBackend(
       autofill_web_data.get(), autofill_backend, app_locale);
   autofill::AutofillWalletMetadataSyncableService::
       CreateForWebDataServiceAndBackend(autofill_web_data.get(),
                                         autofill_backend, app_locale);
 
   autofill::AutofillProfileSyncableService::FromWebDataService(
@@ skipping 83 matching lines @@
 scoped_refptr<TokenWebData> WebDataServiceWrapper::GetTokenWebData() {
   return token_web_data_.get();
 }
 
 #if defined(OS_WIN)
 scoped_refptr<PasswordWebDataService>
 WebDataServiceWrapper::GetPasswordWebData() {
   return password_web_data_.get();
 }
 #endif