More WaitableEvent stragglers migrated to enum-based constructor

chrome/browser/android/provider/run_on_ui_thread_blocking.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_ANDROID_PROVIDER_RUN_ON_UI_THREAD_BLOCKING_H_
 #define CHROME_BROWSER_ANDROID_PROVIDER_RUN_ON_UI_THREAD_BLOCKING_H_
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/synchronization/waitable_event.h"
 #include "content/public/browser/browser_thread.h"
 
 // Runs code synchronously on the UI thread. Should never be called directly
 // from the UI thread. To be used only within the provider classes.
 class RunOnUIThreadBlocking {
  public:
   // Runs the provided runnable in the UI thread synchronously.
   // The runnable argument can be defined using base::Bind.
   template <typename Signature>
   static void Run(base::Callback<Signature> runnable) {
     DCHECK(!content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-    base::WaitableEvent finished(false, false);
+    base::WaitableEvent finished(
+        base::WaitableEvent::ResetPolicy::AUTOMATIC,
+        base::WaitableEvent::InitialState::NOT_SIGNALED);
     content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
           base::Bind(&RunOnUIThreadBlocking::RunOnUIThread<Signature>,
                      runnable, &finished));
     finished.Wait();
   }
 
  private:
   template <typename Signature>
   static void RunOnUIThread(base::Callback<Signature> runnable,
                             base::WaitableEvent* finished) {
     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
     runnable.Run();
     finished->Signal();
   }
 };
 
 #endif  // CHROME_BROWSER_ANDROID_PROVIDER_RUN_ON_UI_THREAD_BLOCKING_H_