[Sync] Add ProfileSyncService::GetModelTypeStoreFactory.

components/browser_sync/profile_sync_service.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 COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 #define COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 
 #include <memory>
 #include <set>
 #include <string>
@@ skipping 31 matching lines @@
 #include "components/sync/driver/sync_service_base.h"
 #include "components/sync/driver/sync_stopped_reporter.h"
 #include "components/sync/engine/events/protocol_event_observer.h"
 #include "components/sync/engine/model_safe_worker.h"
 #include "components/sync/engine/net/network_time_update_callback.h"
 #include "components/sync/engine/shutdown_reason.h"
 #include "components/sync/engine/sync_engine.h"
 #include "components/sync/engine/sync_engine_host.h"
 #include "components/sync/engine/sync_manager_factory.h"
 #include "components/sync/js/sync_js_controller.h"
+#include "components/sync/model/model_type_store.h"
 #include "components/sync/syncable/user_share.h"
 #include "components/version_info/version_info.h"
 #include "google_apis/gaia/google_service_auth_error.h"
 #include "google_apis/gaia/oauth2_token_service.h"
 #include "net/base/backoff_entry.h"
 #include "url/gurl.h"
 
 class Profile;
 class ProfileOAuth2TokenService;
 class SigninManagerWrapper;
@@ skipping 175 matching lines @@
     std::unique_ptr<syncer::SyncClient> sync_client;
     std::unique_ptr<SigninManagerWrapper> signin_wrapper;
     ProfileOAuth2TokenService* oauth2_token_service = nullptr;
     GaiaCookieManagerService* gaia_cookie_manager_service = nullptr;
     StartBehavior start_behavior = MANUAL_START;
     syncer::NetworkTimeUpdateCallback network_time_update_callback;
     base::FilePath base_directory;
     scoped_refptr<net::URLRequestContextGetter> url_request_context;
     std::string debug_identifier;
     version_info::Channel channel = version_info::Channel::UNKNOWN;
-    base::SequencedWorkerPool* blocking_pool = nullptr;
+    scoped_refptr<base::SequencedTaskRunner> blocking_task_runner;
     base::FilePath local_sync_backend_folder;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(InitParams);
   };
 
   explicit ProfileSyncService(InitParams init_params);
 
   ~ProfileSyncService() override;
 
@@ skipping 315 matching lines @@
   void FlushDirectory() const;
 
   // Returns a serialized NigoriKey proto generated from the bootstrap token in
   // SyncPrefs. Will return the empty string if no bootstrap token exists.
   std::string GetCustomPassphraseKey() const;
 
   // Set the provider for whether sync is currently allowed by the platform.
   void SetPlatformSyncAllowedProvider(
       const PlatformSyncAllowedProvider& platform_sync_allowed_provider);
 
+  // Returns a function for |type| that will create a ModelTypeStore that shares
+  // the sync LevelDB backend.
+  syncer::ModelTypeStoreFactory GetModelTypeStoreFactory(
+      syncer::ModelType type);
+
   // Needed to test whether the directory is deleted properly.
   base::FilePath GetDirectoryPathForTest() const;
 
   // Sometimes we need to wait for tasks on the sync thread in tests.
   base::MessageLoop* GetSyncLoopForTest() const;
 
   // Triggers sync cycle with request to update specified |types|.
   void RefreshTypesForTest(syncer::ModelTypeSet types);
 
  protected:
@@ skipping 193 matching lines @@
   // OnConfigureStart has not yet been called, and is reset to zero once
   // OnConfigureDone is called.
   base::Time sync_configure_start_time_;
 
   // Callback to update the network time; used for initializing the engine.
   syncer::NetworkTimeUpdateCallback network_time_update_callback_;
 
   // The request context in which sync should operate.
   scoped_refptr<net::URLRequestContextGetter> url_request_context_;
 
-  // Threading context.
-  base::SequencedWorkerPool* blocking_pool_;
+  // The task runner to use for blocking IO operations.
+  scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
 
   // Indicates if this is the first time sync is being configured.  This value
   // is equal to !IsFirstSetupComplete() at the time of OnEngineInitialized().
   bool is_first_time_sync_configure_;
 
   // Number of UIs currently configuring the Sync service. When this number
   // is decremented back to zero, Sync setup is marked no longer in progress.
   int outstanding_setup_in_progress_handles_ = 0;
 
   // List of available data type controllers.
@@ skipping 155 matching lines @@
   base::WeakPtrFactory<ProfileSyncService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(const syncer::SyncProtocolError& error);
 
 }  // namespace browser_sync
 
 #endif  // COMPONENTS_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_