[Sync] SyncEngine refactor part 2: SyncServiceBase.

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 13 matching lines @@
 #include "components/sync/driver/glue/sync_backend_host_impl.h"
 #include "components/sync/engine/cycle/type_debug_info_observer.h"
 #include "components/sync/engine/shutdown_reason.h"
 #include "components/sync/engine/sync_encryption_handler.h"
 #include "url/gurl.h"
 
 namespace syncer {
 
 class SyncBackendHostImpl;
 
-// Utility struct for holding initialization options.
-struct DoInitializeOptions {
-  DoInitializeOptions(
-      scoped_refptr<base::SingleThreadTaskRunner> sync_task_runner,
-      SyncBackendRegistrar* registrar,
-      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();
-
-  scoped_refptr<base::SingleThreadTaskRunner> sync_task_runner;
-  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;
-};
-
 class SyncBackendHostCore
     : public base::RefCountedThreadSafe<SyncBackendHostCore>,
       public base::trace_event::MemoryDumpProvider,
       public SyncEncryptionHandler::Observer,
       public SyncManager::Observer,
       public TypeDebugInfoObserver {
  public:
   SyncBackendHostCore(const std::string& name,
                       const base::FilePath& sync_data_folder_path,
                       const base::WeakPtr<SyncBackendHostImpl>& backend);
@@ skipping 48 matching lines @@
       const ObjectIdInvalidationMap& invalidation_map);
 
   // Note:
   //
   // The Do* methods are the various entry points from our SyncBackendHostImpl.
   // They are all called on the sync thread to actually perform synchronous (and
   // potentially blocking) syncapi operations.
   //
   // Called to perform initialization of the syncapi on behalf of
   // SyncEngine::Initialize.
-  void DoInitialize(std::unique_ptr<DoInitializeOptions> options);
+  void DoInitialize(SyncEngine::InitParams params);
 
   // Called to perform credential update on behalf of
   // SyncEngine::UpdateCredentials.
   void DoUpdateCredentials(const SyncCredentials& credentials);
 
   // Called to tell the syncapi to start syncing (generally after
   // initialization and authentication).
   void DoStartSyncing(const ModelSafeRoutingInfo& routing_info,
                       base::Time last_poll_time);
 
@@ skipping 58 matching lines @@
   void EnableDirectoryTypeDebugInfoForwarding();
 
   // Disables forwarding of directory type debug counters.
   void DisableDirectoryTypeDebugInfoForwarding();
 
   // Delete the sync data folder to cleanup backend data.  Happens the first
   // time sync is enabled for a user (to prevent accidentally reusing old
   // sync databases), as well as shutdown when you're no longer syncing.
   void DeleteSyncDataFolder();
 
-  // We expose this member because it's required in the construction of the
-  // HttpBridgeFactory.
-  CancelationSignal* GetRequestContextCancelationSignal() {
-    return &release_request_context_signal_;
-  }
-
   // Tell the sync manager to persist its state by writing to disk.
   // Called on the sync thread, both by a timer and, on Android, when the
   // application is backgrounded.
   void SaveChanges();
 
   void DoClearServerData(
       const SyncManager::ClearServerDataCallback& frontend_callback);
 
   // Notify the syncer that the cookie jar has changed.
   void DoOnCookieJarChanged(bool account_mismatch, bool empty_jar);
@@ skipping 13 matching lines @@
 
   // Name used for debugging.
   const std::string name_;
 
   // Path of the folder that stores the sync data files.
   const base::FilePath sync_data_folder_path_;
 
   // Our parent SyncBackendHostImpl.
   WeakHandle<SyncBackendHostImpl> host_;
 
-  // Our parent's registrar (not owned).  Non-null only between
-  // calls to DoInitialize() and DoShutdown().
-  SyncBackendRegistrar* registrar_ = nullptr;
+  // Non-null only between calls to DoInitialize() and DoShutdown().
+  std::unique_ptr<SyncBackendRegistrar> registrar_;
 
   // The timer used to periodically call SaveChanges.
   std::unique_ptr<base::RepeatingTimer> save_changes_timer_;
 
   // Our encryptor, which uses Chrome's encryption functions.
   SystemEncryptor encryptor_;
 
   // The top-level syncapi entry point.  Lives on the sync thread.
   std::unique_ptr<SyncManager> sync_manager_;
 
@@ skipping 27 matching lines @@
   base::ThreadChecker thread_checker_;
 
   base::WeakPtrFactory<SyncBackendHostCore> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncBackendHostCore);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_DRIVER_GLUE_SYNC_BACKEND_HOST_CORE_H_