Revert 56423 - Added classes to enable session sync functionality....

chrome/browser/sync/glue/session_data_type_controller.h

Index: chrome/browser/sync/glue/session_data_type_controller.h
===================================================================
--- chrome/browser/sync/glue/session_data_type_controller.h	(revision 56425)
+++ chrome/browser/sync/glue/session_data_type_controller.h	(working copy)
@@ -1,85 +0,0 @@
-// 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_
-