Revert of Introduce SchedulerSingleThreadTaskRunnerManager

base/task_scheduler/task_scheduler_impl_unittest.cc

Index: base/task_scheduler/task_scheduler_impl_unittest.cc
diff --git a/base/task_scheduler/task_scheduler_impl_unittest.cc b/base/task_scheduler/task_scheduler_impl_unittest.cc
index bacedb7cf98747e75dc9f8987fe25b8e5027b026..6aaf4af8753cd16976280e8c0af0f56cbaeb93e9 100644
--- a/base/task_scheduler/task_scheduler_impl_unittest.cc
+++ b/base/task_scheduler/task_scheduler_impl_unittest.cc
@@ -322,49 +322,5 @@
           TaskTraits().WithPriority(TaskPriority::USER_BLOCKING).MayBlock()));
 }
 
-// Verify that the RunsTasksOnCurrentThread() method of a SequencedTaskRunner
-// returns false when called from a task that isn't part of the sequence.
-TEST_F(TaskSchedulerImplTest, SequencedRunsTasksOnCurrentThread) {
-  auto single_thread_task_runner =
-      scheduler_->CreateSingleThreadTaskRunnerWithTraits(TaskTraits());
-  auto sequenced_task_runner =
-      scheduler_->CreateSequencedTaskRunnerWithTraits(TaskTraits());
-
-  WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL,
-                         WaitableEvent::InitialState::NOT_SIGNALED);
-  single_thread_task_runner->PostTask(
-      FROM_HERE,
-      Bind(
-          [](scoped_refptr<TaskRunner> sequenced_task_runner,
-             WaitableEvent* task_ran) {
-            EXPECT_FALSE(sequenced_task_runner->RunsTasksOnCurrentThread());
-            task_ran->Signal();
-          },
-          sequenced_task_runner, Unretained(&task_ran)));
-  task_ran.Wait();
-}
-
-// Verify that the RunsTasksOnCurrentThread() method of a SingleThreadTaskRunner
-// returns false when called from a task that isn't part of the sequence.
-TEST_F(TaskSchedulerImplTest, SingleThreadRunsTasksOnCurrentThread) {
-  auto sequenced_task_runner =
-      scheduler_->CreateSequencedTaskRunnerWithTraits(TaskTraits());
-  auto single_thread_task_runner =
-      scheduler_->CreateSingleThreadTaskRunnerWithTraits(TaskTraits());
-
-  WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL,
-                         WaitableEvent::InitialState::NOT_SIGNALED);
-  sequenced_task_runner->PostTask(
-      FROM_HERE,
-      Bind(
-          [](scoped_refptr<TaskRunner> single_thread_task_runner,
-             WaitableEvent* task_ran) {
-            EXPECT_FALSE(single_thread_task_runner->RunsTasksOnCurrentThread());
-            task_ran->Signal();
-          },
-          single_thread_task_runner, Unretained(&task_ran)));
-  task_ran.Wait();
-}
-
 }  // namespace internal
 }  // namespace base