sync: Support non-blocking initial sync in proto

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 18 matching lines @@
       const base::TimeDelta& desired_delay,
       ModelTypeSet types,
       const tracked_objects::Location& nudge_location) OVERRIDE;
   virtual void ScheduleInvalidationNudge(
       const base::TimeDelta& desired_delay,
       syncer::ModelType type,
       scoped_ptr<InvalidationInterface> interface,
       const tracked_objects::Location& nudge_location) OVERRIDE;
   virtual void ScheduleConfiguration(
       const ConfigurationParams& params) OVERRIDE;
+  virtual void ScheduleInitialSyncNudge(syncer::ModelType model_type) OVERRIDE;
   virtual void SetNotificationsEnabled(bool notifications_enabled) OVERRIDE;
 
   virtual base::TimeDelta GetSessionsCommitDelay() const OVERRIDE;
   virtual void OnCredentialsUpdated() OVERRIDE;
   virtual void OnConnectionStatusChange() OVERRIDE;
 
   // SyncSession::Delegate implementation.
   virtual void OnThrottled(
       const base::TimeDelta& throttle_duration) OVERRIDE;
   virtual void OnTypesThrottled(
@@ skipping 10 matching lines @@
   virtual void OnSyncProtocolError(
       const SyncProtocolError& error) OVERRIDE;
   virtual void OnReceivedGuRetryDelay(
       const base::TimeDelta& delay) OVERRIDE;
   virtual void OnReceivedMigrationRequest(ModelTypeSet types) OVERRIDE;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_TEST_ENGINE_FAKE_SYNC_SCHEDULER_H_