[Sync] Add ClearServerData support to Sync Scheduler

sync/engine/sync_scheduler_impl.h

 // Copyright 2012 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 SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_
 #define SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_
 
 #include <map>
 #include <string>
 
@@ skipping 35 matching lines @@
   SyncSchedulerImpl(const std::string& name,
                     BackoffDelayProvider* delay_provider,
                     sessions::SyncSessionContext* context,
                     Syncer* syncer);
 
   // Calls Stop().
   ~SyncSchedulerImpl() override;
 
   void Start(Mode mode, base::Time last_poll_time) override;
   void ScheduleConfiguration(const ConfigurationParams& params) override;
+  void ScheduleClearServerData(const ClearParams& params) override;
   void Stop() override;
   void ScheduleLocalNudge(
       ModelTypeSet types,
       const tracked_objects::Location& nudge_location) override;
   void ScheduleLocalRefreshRequest(
       ModelTypeSet types,
       const tracked_objects::Location& nudge_location) override;
   void ScheduleInvalidationNudge(
       syncer::ModelType type,
       scoped_ptr<InvalidationInterface> invalidation,
@@ skipping 78 matching lines @@
   static const char* GetModeString(Mode mode);
 
   void SetDefaultNudgeDelay(base::TimeDelta delay_ms);
 
   // Invoke the syncer to perform a nudge job.
   void DoNudgeSyncSessionJob(JobPriority priority);
 
   // Invoke the syncer to perform a configuration job.
   void DoConfigurationSyncSessionJob(JobPriority priority);
 
+  void DoClearServerDataSyncSessionJob(JobPriority priority);
+
   // Helper function for Do{Nudge,Configuration,Poll}SyncSessionJob.
   void HandleSuccess();
 
   // Helper function for Do{Nudge,Configuration,Poll}SyncSessionJob.
   void HandleFailure(
       const sessions::ModelNeutralState& model_neutral_state);
 
   // Invoke the Syncer to perform a poll job.
   void DoPollSyncSessionJob();
 
@@ skipping 101 matching lines @@
   // The event that will wake us up.
   base::OneShotTimer<SyncSchedulerImpl> pending_wakeup_timer_;
 
   // An event that fires when data type throttling expires.
   base::OneShotTimer<SyncSchedulerImpl> type_unthrottle_timer_;
 
   // Storage for variables related to an in-progress configure request.  Note
   // that (mode_ != CONFIGURATION_MODE) \implies !pending_configure_params_.
   scoped_ptr<ConfigurationParams> pending_configure_params_;
 
+  scoped_ptr<ClearParams> pending_clear_params_;
+
   // If we have a nudge pending to run soon, it will be listed here.
   base::TimeTicks scheduled_nudge_time_;
 
   // Keeps track of work that the syncer needs to handle.
   sessions::NudgeTracker nudge_tracker_;
 
   // Invoked to run through the sync cycle.
   scoped_ptr<Syncer> syncer_;
 
   sessions::SyncSessionContext* session_context_;
@@ skipping 32 matching lines @@
   // A second factory specially for weak_handle_this_, to allow the handle
   // to be const and alleviate threading concerns.
   base::WeakPtrFactory<SyncSchedulerImpl> weak_ptr_factory_for_weak_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSchedulerImpl);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_