sync: take two for: "Added classes to enable session sync...

chrome/browser/sync/glue/session_data_type_controller.h

+// Copyright (c) 2010 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_SESSION_DATA_TYPE_CONTROLLER_H_
+#define CHROME_BROWSER_SYNC_GLUE_SESSION_DATA_TYPE_CONTROLLER_H_
+#pragma once
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/scoped_ptr.h"
+#include "chrome/browser/sync/glue/data_type_controller.h"
+
+class ProfileSyncFactory;
+class ProfileSyncService;
+
+namespace browser_sync {
+
+class AssociatorInterface;
+class ChangeProcessor;
+
+class SessionDataTypeController : public DataTypeController {
+ public:
+  SessionDataTypeController(
+      ProfileSyncFactory* profile_sync_factory,
+      ProfileSyncService* sync_service);
+  virtual ~SessionDataTypeController();
+
+  // DataTypeController implementation.
+  virtual void Start(StartCallback* start_callback);
+
+  virtual void Stop();
+
+  virtual bool enabled() {
+    return true;
+  }
+
+  virtual syncable::ModelType type() {
+    return syncable::SESSIONS;
+  }
+
+  virtual browser_sync::ModelSafeGroup model_safe_group() {
+    return browser_sync::GROUP_UI;
+  }
+
+  virtual const char* name() const {
+    // For logging only.
+    return "session";
+  }
+
+  virtual State state() {
+    return state_;
+  }
+
+  // UnrecoverableErrorHandler interface.
+  virtual void OnUnrecoverableError(
+      const tracked_objects::Location& from_here,
+      const std::string& message);
+
+SessionModelAssociator* GetModelAssociator();
+
+ private:
+  // Helper method to run the stashed start callback with a given result.
+  void FinishStart(StartResult result);
+
+  // Cleans up state and calls callback when start fails.
+  void StartFailed(StartResult result);
+
+  ProfileSyncFactory* profile_sync_factory_;
+  ProfileSyncService* sync_service_;
+
+  State state_;
+
+  scoped_ptr<StartCallback> start_callback_;
+  scoped_ptr<AssociatorInterface> model_associator_;
+  scoped_ptr<ChangeProcessor> change_processor_;
+
+  DISALLOW_COPY_AND_ASSIGN(SessionDataTypeController);
+};
+
+}  // namespace browser_sync
+
+#endif  // CHROME_BROWSER_SYNC_GLUE_SESSION_DATA_TYPE_CONTROLLER_H_
+