[Sync] Add support for performing a GetKey on startup.

sync/internal_api/sync_manager_impl.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.
 
 #ifndef SYNC_INTERNAL_API_SYNC_MANAGER_H_
 #define SYNC_INTERNAL_API_SYNC_MANAGER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 28 matching lines @@
       bool use_ssl,
       const scoped_refptr<base::TaskRunner>& blocking_task_runner,
       scoped_ptr<HttpPostProviderFactory> post_factory,
       const syncer::ModelSafeRoutingInfo& model_safe_routing_info,
       const std::vector<syncer::ModelSafeWorker*>& workers,
       syncer::ExtensionsActivityMonitor* extensions_activity_monitor,
       SyncManager::ChangeDelegate* change_delegate,
       const SyncCredentials& credentials,
       scoped_ptr<syncer::SyncNotifier> sync_notifier,
       const std::string& restored_key_for_bootstrapping,
+      bool keystore_encryption_enabled,
       TestingMode testing_mode,
       syncer::Encryptor* encryptor,
       syncer::UnrecoverableErrorHandler* unrecoverable_error_handler,
       syncer::ReportUnrecoverableErrorFunction
           report_unrecoverable_error_function) OVERRIDE;
   virtual void ThrowUnrecoverableError() OVERRIDE;
   virtual syncer::ModelTypeSet InitialSyncEndedTypes() OVERRIDE;
   virtual syncer::ModelTypeSet GetTypesWithEmptyProgressMarkerToken(
       syncer::ModelTypeSet types) OVERRIDE;
   virtual bool PurgePartiallySyncedTypes() OVERRIDE;
@@ skipping 60 matching lines @@
 
   // An opaque pointer to the nested private class.
   SyncInternal* data_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncManagerImpl);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_SYNC_MANAGER_H_