[Sync] Adds a new switch for enabling the new local server backend.

components/sync/driver/glue/sync_backend_host_core.h

 // Copyright 2013 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 COMPONENTS_SYNC_DRIVER_GLUE_SYNC_BACKEND_HOST_CORE_H_
 #define COMPONENTS_SYNC_DRIVER_GLUE_SYNC_BACKEND_HOST_CORE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 25 matching lines @@
       const std::vector<scoped_refptr<ModelSafeWorker>>& workers,
       const scoped_refptr<ExtensionsActivity>& extensions_activity,
       const WeakHandle<JsEventHandler>& event_handler,
       const GURL& service_url,
       const std::string& sync_user_agent,
       std::unique_ptr<HttpPostProviderFactory> http_bridge_factory,
       const SyncCredentials& credentials,
       const std::string& invalidator_client_id,
       std::unique_ptr<SyncManagerFactory> sync_manager_factory,
       bool delete_sync_data_folder,
+      bool enable_local_sync_backend,
+      const base::FilePath& local_sync_backend_folder,
       const std::string& restored_key_for_bootstrapping,
       const std::string& restored_keystore_key_for_bootstrapping,
       std::unique_ptr<EngineComponentsFactory> engine_components_factory,
       const WeakHandle<UnrecoverableErrorHandler>& unrecoverable_error_handler,
       const base::Closure& report_unrecoverable_error_function,
       std::unique_ptr<SyncEncryptionHandler::NigoriState> saved_nigori_state,
       const std::map<ModelType, int64_t>& invalidation_versions);
   ~DoInitializeOptions();
 
   base::MessageLoop* sync_loop;
   SyncBackendRegistrar* registrar;
   std::vector<scoped_refptr<ModelSafeWorker>> workers;
   scoped_refptr<ExtensionsActivity> extensions_activity;
   WeakHandle<JsEventHandler> event_handler;
   GURL service_url;
   std::string sync_user_agent;
   // Overridden by tests.
   std::unique_ptr<HttpPostProviderFactory> http_bridge_factory;
   SyncCredentials credentials;
   const std::string invalidator_client_id;
   std::unique_ptr<SyncManagerFactory> sync_manager_factory;
   std::string lsid;
   bool delete_sync_data_folder;
+  bool enable_local_sync_backend;
+  const base::FilePath local_sync_backend_folder;
   std::string restored_key_for_bootstrapping;
   std::string restored_keystore_key_for_bootstrapping;
   std::unique_ptr<EngineComponentsFactory> engine_components_factory;
   const WeakHandle<UnrecoverableErrorHandler> unrecoverable_error_handler;
   base::Closure report_unrecoverable_error_function;
   std::unique_ptr<SyncEncryptionHandler::NigoriState> saved_nigori_state;
   const std::map<ModelType, int64_t> invalidation_versions;
 };
 
 // Helper struct to handle currying params to
@@ skipping 236 matching lines @@
   std::map<ModelType, int64_t> last_invalidation_versions_;
 
   base::WeakPtrFactory<SyncBackendHostCore> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncBackendHostCore);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_DRIVER_GLUE_SYNC_BACKEND_HOST_CORE_H_