[Sync] Add ClearServerData support to Sync Scheduler

sync/test/engine/fake_sync_scheduler.h

 // Copyright (c) 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.
 //
 // A fake implementation of the SyncScheduler. If needed, we should add default
 // logic needed for tests (invoking callbacks, etc) here rather than in higher
 // level test classes.
 
 #ifndef SYNC_TEST_ENGINE_FAKE_SYNC_SCHEDULER_H_
 #define SYNC_TEST_ENGINE_FAKE_SYNC_SCHEDULER_H_
@@ skipping 14 matching lines @@
       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> interface,
       const tracked_objects::Location& nudge_location) override;
   void ScheduleConfiguration(const ConfigurationParams& params) override;
+  void ScheduleClearServerData(const ClearParams& params) override;
+
   void ScheduleInitialSyncNudge(syncer::ModelType model_type) override;
   void SetNotificationsEnabled(bool notifications_enabled) override;
 
   void OnCredentialsUpdated() override;
   void OnConnectionStatusChange() override;
 
   // SyncSession::Delegate implementation.
   void OnThrottled(const base::TimeDelta& throttle_duration) override;
   void OnTypesThrottled(ModelTypeSet types,
                         const base::TimeDelta& throttle_duration) override;
   bool IsCurrentlyThrottled() override;
   void OnReceivedShortPollIntervalUpdate(
       const base::TimeDelta& new_interval) override;
   void OnReceivedLongPollIntervalUpdate(
       const base::TimeDelta& new_interval) override;
   void OnReceivedCustomNudgeDelays(
       const std::map<ModelType, base::TimeDelta>& nudge_delays) override;
   void OnReceivedClientInvalidationHintBufferSize(int size) override;
   void OnSyncProtocolError(const SyncProtocolError& error) override;
   void OnReceivedGuRetryDelay(const base::TimeDelta& delay) override;
   void OnReceivedMigrationRequest(ModelTypeSet types) override;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_TEST_ENGINE_FAKE_SYNC_SCHEDULER_H_