Migrate WaitableEvent to enum-based constructor in remoting/

remoting/base/auto_thread.cc

Index: remoting/base/auto_thread.cc
diff --git a/remoting/base/auto_thread.cc b/remoting/base/auto_thread.cc
index 963bd6b864da653468b2674856fa484dd21bb544..7931bc0b7957ced3100b760856f5ae42725d1ccb 100644
--- a/remoting/base/auto_thread.cc
+++ b/remoting/base/auto_thread.cc
@@ -50,7 +50,9 @@ struct AutoThread::StartupData {
   base::WaitableEvent event;
 
   explicit StartupData(base::MessageLoop::Type type)
-      : loop_type(type), event(false, false) {}
+      : loop_type(type),
+        event(base::WaitableEvent::ResetPolicy::AUTOMATIC,
+              base::WaitableEvent::InitialState::NOT_SIGNALED) {}
 };
 
 // static