Remove TaskScheduler::CreateAndSetDefaultTaskScheduler().

base/test/scoped_async_task_scheduler.cc

Index: base/test/scoped_async_task_scheduler.cc
diff --git a/base/test/scoped_async_task_scheduler.cc b/base/test/scoped_async_task_scheduler.cc
index 0b5736a6e5cc72d079418bf1998b014a96883021..f556d9beb23cf5fb3361e009457a195409af9ed5 100644
--- a/base/test/scoped_async_task_scheduler.cc
+++ b/base/test/scoped_async_task_scheduler.cc
@@ -21,10 +21,10 @@ ScopedAsyncTaskScheduler::ScopedAsyncTaskScheduler() {
   const SchedulerWorkerPoolParams worker_pool_params(
       SchedulerWorkerPoolParams::StandbyThreadPolicy::ONE, kMaxThreads,
       kSuggestedReclaimTime);
-  TaskScheduler::CreateAndSetDefaultTaskScheduler(
-      "ScopedAsync", {worker_pool_params, worker_pool_params,
-                      worker_pool_params, worker_pool_params});
+  TaskScheduler::Create("ScopedAsync");
   task_scheduler_ = TaskScheduler::GetInstance();
+  TaskScheduler::GetInstance()->Start({worker_pool_params, worker_pool_params,
+                                       worker_pool_params, worker_pool_params});
 }
 
 ScopedAsyncTaskScheduler::~ScopedAsyncTaskScheduler() {