[Draft] Fix canceling pin prompt causes host overload

remoting/protocol/negotiating_authenticator_base.cc

Index: remoting/protocol/negotiating_authenticator_base.cc
diff --git a/remoting/protocol/negotiating_authenticator_base.cc b/remoting/protocol/negotiating_authenticator_base.cc
index 30bd8ba750d54e2fd59fc1f987e6ba6ea6aef896..5c61d307d16b62fd72f915f1cea036059524ea69 100644
--- a/remoting/protocol/negotiating_authenticator_base.cc
+++ b/remoting/protocol/negotiating_authenticator_base.cc
@@ -40,6 +40,13 @@ Authenticator::State NegotiatingAuthenticatorBase::state() const {
   return state_;
 }
 
+bool NegotiatingAuthenticatorBase::started() const {
+  if (!current_authenticator_) {
+    return false;
+  }
+  return current_authenticator_->started();
+}
+
 Authenticator::RejectionReason
 NegotiatingAuthenticatorBase::rejection_reason() const {
   return rejection_reason_;