Migrate WaitableEvent to enum-based constructor in components/

components/scheduler/child/webthread_impl_for_worker_scheduler.cc

 // Copyright 2015 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 "components/scheduler/child/webthread_impl_for_worker_scheduler.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 15 matching lines @@
 WebThreadImplForWorkerScheduler::WebThreadImplForWorkerScheduler(
     const char* name,
     base::Thread::Options options)
     : thread_(new base::Thread(name ? name : std::string())) {
   bool started = thread_->StartWithOptions(options);
   CHECK(started);
   thread_task_runner_ = thread_->task_runner();
 }
 
 void WebThreadImplForWorkerScheduler::Init() {
-  base::WaitableEvent completion(false, false);
+  base::WaitableEvent completion(
+      base::WaitableEvent::ResetPolicy::AUTOMATIC,
+      base::WaitableEvent::InitialState::NOT_SIGNALED);
   thread_task_runner_->PostTask(
       FROM_HERE, base::Bind(&WebThreadImplForWorkerScheduler::InitOnThread,
                             base::Unretained(this), &completion));
   completion.Wait();
 }
 
 WebThreadImplForWorkerScheduler::~WebThreadImplForWorkerScheduler() {
   if (task_runner_delegate_) {
-    base::WaitableEvent completion(false, false);
+    base::WaitableEvent completion(
+        base::WaitableEvent::ResetPolicy::AUTOMATIC,
+        base::WaitableEvent::InitialState::NOT_SIGNALED);
     // Restore the original task runner so that the thread can tear itself down.
     thread_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&WebThreadImplForWorkerScheduler::RestoreTaskRunnerOnThread,
                    base::Unretained(this), &completion));
     completion.Wait();
   }
   thread_->Stop();
 }
 
@@ skipping 60 matching lines @@
     base::MessageLoop::TaskObserver* observer) {
   worker_scheduler_->AddTaskObserver(observer);
 }
 
 void WebThreadImplForWorkerScheduler::RemoveTaskObserverInternal(
     base::MessageLoop::TaskObserver* observer) {
   worker_scheduler_->RemoveTaskObserver(observer);
 }
 
 }  // namespace scheduler