Let SyncManagerFactory create different types of sync managers according to

chrome/browser/sync/profile_sync_service.cc

 // Copyright (c) 2012 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 "chrome/browser/sync/profile_sync_service.h"
 
 #include <cstddef>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 505 matching lines @@
               MakeWeakHandle(weak_factory_.GetWeakPtr())));
 
   backend_->Initialize(
       this,
       sync_thread_.Pass(),
       GetJsEventHandler(),
       sync_service_url_,
       credentials,
       delete_stale_data,
       scoped_ptr<syncer::SyncManagerFactory>(
-          new syncer::SyncManagerFactory).Pass(),
+          new syncer::SyncManagerFactory(
+              syncer::SyncManagerFactory::NORMAL)).Pass(),
       backend_unrecoverable_error_handler.Pass(),
       &browser_sync::ChromeReportUnrecoverableError,
       network_resources_.get());
 }
 
 bool ProfileSyncService::IsEncryptedDatatypeEnabled() const {
   if (encryption_pending())
     return true;
   const syncer::ModelTypeSet preferred_types = GetPreferredDataTypes();
   const syncer::ModelTypeSet encrypted_types = GetEncryptedDataTypes();
@@ skipping 1803 matching lines @@
   status.last_get_token_error = last_get_token_error_;
   if (request_access_token_retry_timer_.IsRunning())
     status.next_token_request_time = next_token_request_time_;
   return status;
 }
 
 void ProfileSyncService::OverrideNetworkResourcesForTest(
     scoped_ptr<syncer::NetworkResources> network_resources) {
   network_resources_ = network_resources.Pass();
 }