Fix compile again

base/mac/libdispatch_task_runner.cc

 // 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.
 
 #include "base/mac/libdispatch_task_runner.h"
 
 #include <stdint.h>
 
 #include "base/callback.h"
 
 namespace base {
 namespace mac {
 
 LibDispatchTaskRunner::LibDispatchTaskRunner(const char* name)
     : queue_(dispatch_queue_create(name, NULL)),
-      queue_finalized_(false, false) {
+      queue_finalized_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
+                       base::WaitableEvent::InitialState::NOT_SIGNALED) {
   dispatch_set_context(queue_, this);
   dispatch_set_finalizer_f(queue_, &LibDispatchTaskRunner::Finalizer);
 }
 
 bool LibDispatchTaskRunner::PostDelayedTask(
     const tracked_objects::Location& from_here,
     const Closure& task,
     base::TimeDelta delay) {
   if (!queue_)
     return false;
@@ skipping 46 matching lines @@
   }
 }
 
 void LibDispatchTaskRunner::Finalizer(void* context) {
   LibDispatchTaskRunner* self = static_cast<LibDispatchTaskRunner*>(context);
   self->queue_finalized_.Signal();
 }
 
 }  // namespace mac
 }  // namespace base