Migrate WaitableEvent to enum-based constructor in base/

base/threading/sequenced_task_runner_handle_unittest.cc

Index: base/threading/sequenced_task_runner_handle_unittest.cc
diff --git a/base/threading/sequenced_task_runner_handle_unittest.cc b/base/threading/sequenced_task_runner_handle_unittest.cc
index 21969745515a0b7f8ca387d645c35060d1544d17..381aa51d77a3d273a9e69fe1a6d65b3a2ef6ce6d 100644
--- a/base/threading/sequenced_task_runner_handle_unittest.cc
+++ b/base/threading/sequenced_task_runner_handle_unittest.cc
@@ -63,7 +63,8 @@ TEST_F(SequencedTaskRunnerHandleTest, FromSequencedWorkerPoolTask) {
   // Wrap the SequencedWorkerPool to avoid leaks due to its asynchronous
   // destruction.
   SequencedWorkerPoolOwner owner(3, "Test");
-  WaitableEvent event(false, false);
+  WaitableEvent event(WaitableEvent::ResetPolicy::AUTOMATIC,
+                      WaitableEvent::InitialState::NOT_SIGNALED);
   owner.pool()->PostSequencedWorkerTask(
       owner.pool()->GetSequenceToken(), FROM_HERE,
       base::Bind(
@@ -77,7 +78,8 @@ TEST_F(SequencedTaskRunnerHandleTest, FromUnsequencedTask) {
   // Wrap the SequencedWorkerPool to avoid leaks due to its asynchronous
   // destruction.
   SequencedWorkerPoolOwner owner(3, "Test");
-  WaitableEvent event(false, false);
+  WaitableEvent event(WaitableEvent::ResetPolicy::AUTOMATIC,
+                      WaitableEvent::InitialState::NOT_SIGNALED);
   owner.pool()->PostWorkerTask(
       FROM_HERE,
       base::Bind(