Standardize usage of virtual/override/final in sync/

sync/internal_api/public/test/test_internal_components_factory.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_PUBLIC_TEST_TEST_INTERNAL_COMPONENTS_FACTORY_H_
 #define SYNC_INTERNAL_API_PUBLIC_TEST_TEST_INTERNAL_COMPONENTS_FACTORY_H_
 
 #include "sync/internal_api/public/internal_components_factory.h"
 
 namespace syncer {
 
 class TestInternalComponentsFactory : public InternalComponentsFactory {
  public:
   explicit TestInternalComponentsFactory(const Switches& switches,
                                          StorageOption option,
                                          StorageOption* storage_used);
-  virtual ~TestInternalComponentsFactory();
+  ~TestInternalComponentsFactory() override;
 
-  virtual scoped_ptr<SyncScheduler> BuildScheduler(
+  scoped_ptr<SyncScheduler> BuildScheduler(
       const std::string& name,
       sessions::SyncSessionContext* context,
       syncer::CancelationSignal* cancelation_signal) override;
 
-  virtual scoped_ptr<sessions::SyncSessionContext> BuildContext(
+  scoped_ptr<sessions::SyncSessionContext> BuildContext(
       ServerConnectionManager* connection_manager,
       syncable::Directory* directory,
       ExtensionsActivity* monitor,
       const std::vector<SyncEngineEventListener*>& listeners,
       sessions::DebugInfoGetter* debug_info_getter,
       ModelTypeRegistry* model_type_registry,
       const std::string& invalidator_client_id) override;
 
-  virtual scoped_ptr<syncable::DirectoryBackingStore>
-  BuildDirectoryBackingStore(
+  scoped_ptr<syncable::DirectoryBackingStore> BuildDirectoryBackingStore(
       StorageOption storage,
       const std::string& dir_name,
       const base::FilePath& backing_filepath) override;
 
-  virtual Switches GetSwitches() const override;
+  Switches GetSwitches() const override;
 
  private:
   const Switches switches_;
   const StorageOption storage_override_;
   StorageOption* storage_used_;
 
   DISALLOW_COPY_AND_ASSIGN(TestInternalComponentsFactory);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_TEST_TEST_INTERNAL_COMPONENTS_FACTORY_H_