[Sync] Convert DTCs to be not RefCounted and NonThreadSafe.

components/browser_sync/browser/profile_sync_components_factory_impl.h

 // 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.
 
 #ifndef COMPONENTS_BROWSER_SYNC_BROWSER_PROFILE_SYNC_COMPONENTS_FACTORY_IMPL_H__
 #define COMPONENTS_BROWSER_SYNC_BROWSER_PROFILE_SYNC_COMPONENTS_FACTORY_IMPL_H__
 
+#include <memory>
 #include <string>
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "components/sync/base/model_type.h"
 #include "components/sync/driver/sync_api_component_factory.h"
 #include "components/version_info/version_info.h"
 #include "url/gurl.h"
@@ skipping 60 matching lines @@
   CreateLocalDeviceInfoProvider() override;
   std::unique_ptr<syncer::AttachmentService> CreateAttachmentService(
       std::unique_ptr<syncer::AttachmentStoreForSync> attachment_store,
       const syncer::UserShare& user_share,
       const std::string& store_birthday,
       syncer::ModelType model_type,
       syncer::AttachmentService::Delegate* delegate) override;
   sync_driver::SyncApiComponentFactory::SyncComponents
   CreateBookmarkSyncComponents(
       sync_driver::SyncService* sync_service,
-      syncer::DataTypeErrorHandler* error_handler) override;
+      std::unique_ptr<syncer::DataTypeErrorHandler> error_handler) override;
 
  private:
   // Register data types which are enabled on both desktop and mobile.
   // |disabled_types| and |enabled_types| correspond only to those types
   // being explicitly enabled/disabled by the command line.
   void RegisterCommonDataTypes(sync_driver::SyncService* sync_service,
                                syncer::ModelTypeSet disabled_types,
                                syncer::ModelTypeSet enabled_types);
 
   void DisableBrokenType(syncer::ModelType type,
@@ skipping 14 matching lines @@
   net::URLRequestContextGetter* const url_request_context_getter_;
   const scoped_refptr<autofill::AutofillWebDataService> web_data_service_;
   const scoped_refptr<password_manager::PasswordStore> password_store_;
 
   base::WeakPtrFactory<ProfileSyncComponentsFactoryImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncComponentsFactoryImpl);
 };
 
 #endif  // COMPONENTS_BROWSER_SYNC_BROWSER_PROFILE_SYNC_COMPONENTS_FACTORY_IMPL_H__