Add TaskTraits::MayBlock and TaskTraits::WithSyncPrimitives.

base/threading/sequenced_worker_pool.cc

Index: base/threading/sequenced_worker_pool.cc
diff --git a/base/threading/sequenced_worker_pool.cc b/base/threading/sequenced_worker_pool.cc
index 56bbb62dd09f58bb92f05340598a109e715c5aee..91ae69b5dbff0fa85f56b6ff59c778185148500d 100644
--- a/base/threading/sequenced_worker_pool.cc
+++ b/base/threading/sequenced_worker_pool.cc
@@ -812,8 +812,8 @@ bool SequencedWorkerPool::Inner::PostTaskToTaskScheduler(
   const TaskShutdownBehavior task_shutdown_behavior =
       static_cast<TaskShutdownBehavior>(sequenced.shutdown_behavior);
   const TaskTraits traits = TaskTraits()
-                                .WithFileIO()
-                                .WithWait()
+                                .MayBlock()
+                                .WithSyncPrimitives()
                                 .WithPriority(task_priority_)
                                 .WithShutdownBehavior(task_shutdown_behavior);
   return GetTaskSchedulerTaskRunner(sequenced.sequence_token_id, traits)
@@ -864,7 +864,8 @@ bool SequencedWorkerPool::Inner::RunsTasksOnCurrentThread() const {
   if (g_all_pools_state == AllPoolsState::REDIRECTED_TO_TASK_SCHEDULER) {
     if (!runs_tasks_on_verifier_) {
       runs_tasks_on_verifier_ = CreateTaskRunnerWithTraits(
-          TaskTraits().WithFileIO().WithWait().WithPriority(task_priority_));
+          TaskTraits().MayBlock().WithSyncPrimitives().WithPriority(
+              task_priority_));
     }
     return runs_tasks_on_verifier_->RunsTasksOnCurrentThread();
   } else {