Migrate WaitableEvent to enum-based constructor in services/

services/shell/standalone/tracer.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 "services/shell/standalone/tracer.h"
 
 #include <stddef.h>
 #include <stdio.h>
 #include <string.h>
 #include <utility>
@@ skipping 68 matching lines @@
   // collected in process to it.
   if (coordinator_) {
     coordinator_->StopAndFlush();
   } else {
     // Or we might not be connected. If we aren't connected to the tracing
     // service we want to collect the tracing data gathered ourselves and flush
     // it to disk. We do this in a blocking fashion (for this thread) so we can
     // gather as much data as possible on shutdown.
     base::trace_event::TraceLog::GetInstance()->SetDisabled();
     {
-      base::WaitableEvent flush_complete_event(false, false);
+      base::WaitableEvent flush_complete_event(
+          base::WaitableEvent::ResetPolicy::AUTOMATIC,
+          base::WaitableEvent::InitialState::NOT_SIGNALED);
       // TraceLog::Flush requires a message loop but we've already shut ours
       // down.
       // Spin up a new thread to flush things out.
       base::Thread flush_thread("mojo_runner_trace_event_flush");
       flush_thread.Start();
       flush_thread.message_loop()->PostTask(
           FROM_HERE,
           base::Bind(&Tracer::EndTraceAndFlush, base::Unretained(this),
                      trace_filename_,
                      base::Bind(&base::WaitableEvent::Signal,
@@ skipping 53 matching lines @@
   WriteFooterAndClose();
 }
 
 void Tracer::WriteCommaIfNeeded() {
   if (first_chunk_written_)
     PCHECK(fwrite(",", 1, 1, trace_file_) == 1);
   first_chunk_written_ = true;
 }
 
 }  // namespace shell