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extension_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_EXTENSION_DATA_TYPE_CONTROLLER_H_
#define CHROME_BROWSER_SYNC_GLUE_EXTENSION_DATA_TYPE_CONTROLLER_H_

#include <string>

#include "base/basictypes.h"
#include "base/scoped_ptr.h"
#include "chrome/browser/sync/glue/data_type_controller.h"

class Profile;
class ProfileSyncFactory;
class ProfileSyncService;

namespace browser_sync {

class AssociatorInterface;
class ChangeProcessor;

class ExtensionDataTypeController : public DataTypeController {
 public:
  ExtensionDataTypeController(
      ProfileSyncFactory* profile_sync_factory,
      Profile* profile,
      ProfileSyncService* sync_service);
  virtual ~ExtensionDataTypeController();

  // DataTypeController implementation.
  virtual void Start(StartCallback* start_callback);

  virtual void Stop();

  virtual bool enabled() {
    return true;
  }

  virtual syncable::ModelType type() {
    return syncable::EXTENSIONS;
  }

  virtual browser_sync::ModelSafeGroup model_safe_group() {
    return browser_sync::GROUP_UI;
  }

  virtual const char* name() const {
    // For logging only.
    return "extension";
  }

  virtual State state() {
    return state_;
  }

  // UnrecoverableErrorHandler interface.
  virtual void OnUnrecoverableError(
      const tracked_objects::Location& from_here,
      const std::string& message);

 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_;
  Profile* profile_;
  ProfileSyncService* sync_service_;

  State state_;

  scoped_ptr<StartCallback> start_callback_;
  scoped_ptr<AssociatorInterface> model_associator_;
  scoped_ptr<ChangeProcessor> change_processor_;

  DISALLOW_COPY_AND_ASSIGN(ExtensionDataTypeController);
};

}  // namespace browser_sync

#endif  // CHROME_BROWSER_SYNC_GLUE_EXTENSION_DATA_TYPE_CONTROLLER_H_

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