Migrate WaitableEvent to enum-based constructor in content/

content/browser/browser_shutdown_profile_dumper.cc

Index: content/browser/browser_shutdown_profile_dumper.cc
diff --git a/content/browser/browser_shutdown_profile_dumper.cc b/content/browser/browser_shutdown_profile_dumper.cc
index 4330c6141ca755f1005e74d9c55b9fef7aa03e76..a1a57bdc6e14b8e3531c5593e0db66f49b762bf7 100644
--- a/content/browser/browser_shutdown_profile_dumper.cc
+++ b/content/browser/browser_shutdown_profile_dumper.cc
@@ -57,7 +57,9 @@ void BrowserShutdownProfileDumper::WriteTracesToDisc() {
   // TraceLog::Flush() requires the calling thread to have a message loop.
   // As the message loop of the current thread may have quit, start another
   // thread for flushing the trace.
-  base::WaitableEvent flush_complete_event(false, false);
+  base::WaitableEvent flush_complete_event(
+      base::WaitableEvent::ResetPolicy::AUTOMATIC,
+      base::WaitableEvent::InitialState::NOT_SIGNALED);
   base::Thread flush_thread("browser_shutdown_trace_event_flush");
   flush_thread.Start();
   flush_thread.task_runner()->PostTask(