| // Copyright 2021 The Chromium Authors | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #include "components/value_store/value_store_task_runner.h" | 
 |  | 
 | #include "base/task/lazy_thread_pool_task_runner.h" | 
 | #include "base/task/sequenced_task_runner.h" | 
 | #include "base/task/task_traits.h" | 
 |  | 
 | namespace value_store { | 
 |  | 
 | namespace { | 
 |  | 
 | // Note: All tasks posted to a single task runner have the same priority. This | 
 | // is unfortunate, since some file-related tasks are high priority, and others | 
 | // are low priority (like garbage collection). Split the difference and use | 
 | // USER_VISIBLE, which is the default priority and what a task posted to a | 
 | // named thread (like the FILE thread) would receive. | 
 | base::LazyThreadPoolSequencedTaskRunner g_task_runner = | 
 |     LAZY_THREAD_POOL_SEQUENCED_TASK_RUNNER_INITIALIZER( | 
 |         base::TaskTraits(base::MayBlock(), | 
 |                          base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN, | 
 |                          base::TaskPriority::USER_VISIBLE)); | 
 |  | 
 | }  // namespace | 
 |  | 
 | scoped_refptr<base::SequencedTaskRunner> GetValueStoreTaskRunner() { | 
 |   return g_task_runner.Get(); | 
 | } | 
 |  | 
 | }  // namespace value_store |