DO NOT COMMIT (will be split in sub-components) - clang-tidy WaitableEvent refactor

components/prefs/pref_member_unittest.cc

 // Copyright (c) 2011 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/prefs/pref_member.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
@@ skipping 28 matching lines @@
   void Init(const std::string& pref_name, PrefService* prefs) {
     pref_.Init(pref_name, prefs);
     pref_.MoveToThread(pref_thread_.task_runner());
   }
 
   void Destroy() {
     pref_.Destroy();
   }
 
   void FetchValue() {
-    base::WaitableEvent event(true, false);
+    base::WaitableEvent event(base::WaitableEvent::ResetPolicy::MANUAL,
+                              base::WaitableEvent::InitialState::NOT_SIGNALED);
     ASSERT_TRUE(pref_thread_.task_runner()->PostTask(
         FROM_HERE,
         base::Bind(&GetPrefValueHelper::GetPrefValue, this, &event)));
     event.Wait();
   }
 
   // The thread must be stopped on the main thread. GetPrefValueHelper being
   // ref-counted, the destructor can be called from any thread.
   void StopThread() {
     pref_thread_.Stop();
@@ skipping 256 matching lines @@
   helper->FetchValue();
   EXPECT_TRUE(helper->value());
 
   helper->Destroy();
 
   helper->FetchValue();
   EXPECT_TRUE(helper->value());
 
   helper->StopThread();
 }