Manual refactor to enum-based WaitableEvent for remaining mac/ios files

components/cronet/ios/cronet_environment.cc

 // Copyright 2016 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 "components/cronet/ios/cronet_environment.h"
 
 #include <utility>
 
 #include "base/at_exit.h"
 #include "base/atomicops.h"
@@ skipping 151 matching lines @@
                 : net::NetLogCaptureMode::Default();
 
   net_log_observer_.reset(new net::WriteToFileNetLogObserver());
   net_log_observer_->set_capture_mode(capture_mode);
   net_log_observer_->StartObserving(main_context_->net_log(), std::move(file),
                                     nullptr, main_context_.get());
   LOG(WARNING) << "Started NetLog to " << full_path.value();
 }
 
 void CronetEnvironment::StopNetLog() {
-  base::WaitableEvent log_stopped_event(true, false);
+  base::WaitableEvent log_stopped_event(
+      base::WaitableEvent::ResetPolicy::MANUAL,
+      base::WaitableEvent::InitialState::NOT_SIGNALED);
   PostToNetworkThread(FROM_HERE,
                       base::Bind(&CronetEnvironment::StopNetLogOnNetworkThread,
                                  base::Unretained(this), &log_stopped_event));
   log_stopped_event.Wait();
 }
 
 void CronetEnvironment::StopNetLogOnNetworkThread(
     base::WaitableEvent* log_stopped_event) {
   if (net_log_observer_) {
     DLOG(WARNING) << "Stopped NetLog.";
@@ skipping 180 matching lines @@
   const net::HttpUserAgentSettings* user_agent_settings =
       main_context_->http_user_agent_settings();
   if (!user_agent_settings) {
     return nullptr;
   }
 
   return user_agent_settings->GetUserAgent();
 }
 
 }  // namespace cronet