Migrate WaitableEvent to enum-based constructor in ipc/

ipc/ipc_sync_message_filter.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 "ipc/ipc_sync_message_filter.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 12 matching lines @@
         pending_messages_.push_back(message);
         return true;
       }
     }
     io_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&SyncMessageFilter::SendOnIOThread, this, message));
     return true;
   }
 
-  base::WaitableEvent done_event(true, false);
+  base::WaitableEvent done_event(
+      base::WaitableEvent::ResetPolicy::MANUAL,
+      base::WaitableEvent::InitialState::NOT_SIGNALED);
   PendingSyncMsg pending_message(
       SyncMessage::GetMessageId(*message),
       static_cast<SyncMessage*>(message)->GetReplyDeserializer(),
       &done_event);
 
   {
     base::AutoLock auto_lock(lock_);
     // Can't use this class on the main thread or else it can lead to deadlocks.
     // Also by definition, can't use this on IO thread since we're blocking it.
     if (base::ThreadTaskRunnerHandle::IsSet()) {
@@ skipping 115 matching lines @@
   for (PendingSyncMessages::iterator iter = pending_sync_messages_.begin();
        iter != pending_sync_messages_.end(); ++iter) {
     TRACE_EVENT_FLOW_BEGIN0(TRACE_DISABLED_BY_DEFAULT("ipc.flow"),
                             "SyncMessageFilter::SignalAllEvents",
                             (*iter)->done_event);
     (*iter)->done_event->Signal();
   }
 }
 
 }  // namespace IPC