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

components/sync/driver/glue/sync_backend_host_core.cc

 // 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.
 
 #include "components/sync/driver/glue/sync_backend_host_core.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
@@ skipping 48 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)
     : sync_loop(sync_loop),
       registrar(registrar),
       workers(workers),
       extensions_activity(extensions_activity),
       event_handler(event_handler),
       service_url(service_url),
       sync_user_agent(sync_user_agent),
       http_bridge_factory(std::move(http_bridge_factory)),
       credentials(credentials),
       invalidator_client_id(invalidator_client_id),
       sync_manager_factory(std::move(sync_manager_factory)),
       delete_sync_data_folder(delete_sync_data_folder),
+      enable_local_sync_backend(enable_local_sync_backend),
+      local_sync_backend_folder(local_sync_backend_folder),
       restored_key_for_bootstrapping(restored_key_for_bootstrapping),
       restored_keystore_key_for_bootstrapping(
           restored_keystore_key_for_bootstrapping),
       engine_components_factory(std::move(engine_components_factory)),
       unrecoverable_error_handler(unrecoverable_error_handler),
       report_unrecoverable_error_function(report_unrecoverable_error_function),
       saved_nigori_state(std::move(saved_nigori_state)),
       invalidation_versions(invalidation_versions) {}
 
 DoInitializeOptions::~DoInitializeOptions() {}
@@ skipping 302 matching lines @@
   registrar_ = options->registrar;
   DCHECK(registrar_);
 
   sync_manager_ = options->sync_manager_factory->CreateSyncManager(name_);
   sync_manager_->AddObserver(this);
 
   SyncManager::InitArgs args;
   args.database_location = sync_data_folder_path_;
   args.event_handler = options->event_handler;
   args.service_url = options->service_url;
+  args.enable_local_sync_backend = options->enable_local_sync_backend;
+  args.local_sync_backend_folder = options->local_sync_backend_folder;
   args.post_factory = std::move(options->http_bridge_factory);
   args.workers = options->workers;
   args.extensions_activity = options->extensions_activity.get();
   args.change_delegate = options->registrar;  // as SyncManager::ChangeDelegate
   args.credentials = options->credentials;
   args.invalidator_client_id = options->invalidator_client_id;
   args.restored_key_for_bootstrapping = options->restored_key_for_bootstrapping;
   args.restored_keystore_key_for_bootstrapping =
       options->restored_keystore_key_for_bootstrapping;
   args.engine_components_factory =
@@ skipping 262 matching lines @@
 }
 
 void SyncBackendHostCore::ClearServerDataDone(
     const base::Closure& frontend_callback) {
   DCHECK(sync_loop_->task_runner()->BelongsToCurrentThread());
   host_.Call(FROM_HERE, &SyncBackendHostImpl::ClearServerDataDoneOnFrontendLoop,
              frontend_callback);
 }
 
 }  // namespace syncer