Migrate WaitableEvent to enum-based constructor in base/

base/task_scheduler/task_scheduler_impl_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/task_scheduler/task_scheduler_impl.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 140 matching lines @@
 
   return params;
 }
 
 }  // namespace
 
 // Verifies that a Task posted via PostTaskWithTraits with parameterized
 // TaskTraits runs on a thread with the expected priority and I/O restrictions.
 // The ExecutionMode parameter is ignored by this test.
 TEST_P(TaskSchedulerImplTest, PostTaskWithTraits) {
-  WaitableEvent task_ran(true, false);
+  WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL,
+                         WaitableEvent::InitialState::NOT_SIGNALED);
   scheduler_->PostTaskWithTraits(
       FROM_HERE, GetParam().traits,
       Bind(&VerifyTaskEnvironementAndSignalEvent, GetParam().traits,
            Unretained(&task_ran)));
   task_ran.Wait();
 }
 
 // Verifies that Tasks posted via a TaskRunner with parameterized TaskTraits and
 // ExecutionMode run on a thread with the expected priority and I/O restrictions
 // and respect the characteristics of their ExecutionMode.
@@ skipping 38 matching lines @@
   }
 
   scheduler->JoinForTesting();
 }
 
 // TODO(fdoray): Add tests with Sequences that move around thread pools once
 // child TaskRunners are supported.
 
 }  // namespace internal
 }  // namespace base