[Sync] Refactor non-frontend DTC to handle new API properly.

chrome/browser/sync/glue/new_non_frontend_data_type_controller.h

+// Copyright (c) 2011 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 CHROME_BROWSER_SYNC_GLUE_NEW_NON_FRONTEND_DATA_TYPE_CONTROLLER_H_
+#define CHROME_BROWSER_SYNC_GLUE_NEW_NON_FRONTEND_DATA_TYPE_CONTROLLER_H_
+#pragma once
+
+#include "base/compiler_specific.h"
+#include "chrome/browser/sync/glue/generic_change_processor.h"
+#include "chrome/browser/sync/glue/non_frontend_data_type_controller.h"
+
+class SyncableService;
+
+namespace sync_api {
+struct UserShare;
+}
+
+namespace browser_sync {
+
+class GenericChangeProcessor;
+
+class NewNonFrontendDataTypeController : public NonFrontendDataTypeController {
+ public:
+  NewNonFrontendDataTypeController(
+      ProfileSyncFactory* profile_sync_factory,
+      Profile* profile);
+  virtual ~NewNonFrontendDataTypeController();
+
+  virtual void Start(StartCallback* start_callback) OVERRIDE;
+  virtual void Stop() OVERRIDE;
+
+ protected:
+  NewNonFrontendDataTypeController();
+  virtual void StartAssociation() OVERRIDE;
+
+  // Extract/create the syncable service from the profile.
+  virtual SyncableService* GetSyncableService() const = 0;
+
+  // We make this static because it's possible the thread it gets posted to is
+  // blocked on I/O or similar and we don't want to block sync shutdown.
+  static void StopLocalService(
+    SyncableService* service, syncable::ModelType type);
+  // Posts StopLocalService to appropriate thread.
+  virtual bool StopLocalServiceAsync() = 0;
+
+  // Return this datatype's syncable service.
+  virtual SyncableService* local_service() const;
+
+ private:
+  // Deprecated.
+  virtual bool StopAssociationAsync() OVERRIDE;
+  virtual void CreateSyncComponents() OVERRIDE;
+
+  sync_api::UserShare* user_share_;
+
+  // A pointer to the actual local syncable service, which performs all the
+  // real work. We do not own the object.
+  SyncableService* local_service_;
+
+  scoped_refptr<GenericChangeProcessor> generic_change_processor_;
+};
+
+}  // namespace browser_sync
+
+#endif  // CHROME_BROWSER_SYNC_GLUE_NEW_NON_FRONTEND_DATA_TYPE_CONTROLLER_H_