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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_SYNC_GLUE_HISTORY_DELETE_DIRECTIVES_DATA_TYPE_CONTROLLER_H_
      6 #define CHROME_BROWSER_SYNC_GLUE_HISTORY_DELETE_DIRECTIVES_DATA_TYPE_CONTROLLER_H_
      7 
      8 #include "chrome/browser/sync/profile_sync_service_observer.h"
      9 #include "components/sync_driver/local_device_info_provider.h"
     10 #include "components/sync_driver/ui_data_type_controller.h"
     11 
     12 class Profile;
     13 class ProfileSyncService;
     14 
     15 namespace browser_sync {
     16 
     17 // A controller for delete directives, which cannot sync when full encryption
     18 // is enabled.
     19 class HistoryDeleteDirectivesDataTypeController
     20     : public sync_driver::UIDataTypeController,
     21       public ProfileSyncServiceObserver {
     22  public:
     23   HistoryDeleteDirectivesDataTypeController(
     24       sync_driver::SyncApiComponentFactory* factory,
     25       ProfileSyncService* sync_service);
     26 
     27   // UIDataTypeController override.
     28   virtual bool ReadyForStart() const OVERRIDE;
     29   virtual bool StartModels() OVERRIDE;
     30   virtual void StopModels() OVERRIDE;
     31 
     32   // ProfileSyncServiceBaseObserver implementation.
     33   virtual void OnStateChanged() OVERRIDE;
     34 
     35  private:
     36   // Refcounted.
     37   virtual ~HistoryDeleteDirectivesDataTypeController();
     38 
     39   // Triggers a SingleDataTypeUnrecoverable error and returns true if the
     40   // type is no longer ready, else does nothing and returns false.
     41   bool DisableTypeIfNecessary();
     42 
     43   ProfileSyncService* sync_service_;
     44 
     45   DISALLOW_COPY_AND_ASSIGN(HistoryDeleteDirectivesDataTypeController);
     46 };
     47 
     48 }  // namespace browser_sync
     49 
     50 #endif  // CHROME_BROWSER_SYNC_GLUE_HISTORY_DELETE_DIRECTIVES_DATA_TYPE_CONTROLLER_H_
     51