Re-write many calls to WrapUnique() with MakeUnique()

chrome/browser/sync_file_system/drive_backend/sync_engine.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 "chrome/browser/sync_file_system/drive_backend/sync_engine.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 183 matching lines @@
   OAuth2TokenService* token_service =
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
   scoped_refptr<net::URLRequestContextGetter> request_context =
       content::BrowserContext::GetDefaultStoragePartition(context)->
             GetURLRequestContext();
 
   std::unique_ptr<drive_backend::SyncEngine> sync_engine(new SyncEngine(
       ui_task_runner.get(), worker_task_runner.get(), drive_task_runner.get(),
       worker_pool.get(), GetSyncFileSystemDir(context->GetPath()), task_logger,
       notification_manager, extension_service, signin_manager, token_service,
-      request_context.get(), base::WrapUnique(new DriveServiceFactory()),
+      request_context.get(), base::MakeUnique<DriveServiceFactory>(),
       nullptr /* env_override */));
 
   sync_engine->Initialize();
   return sync_engine;
 }
 
 void SyncEngine::AppendDependsOnFactories(
     std::set<BrowserContextKeyedServiceFactory*>* factories) {
   DCHECK(factories);
   factories->insert(drive::DriveNotificationManagerFactory::GetInstance());
@@ skipping 561 matching lines @@
 
 SyncStatusCallback SyncEngine::TrackCallback(
     const SyncStatusCallback& callback) {
   return callback_tracker_.Register(
       base::Bind(callback, SYNC_STATUS_ABORT),
       callback);
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system