[Draft] Fix canceling pin prompt causes host overload

remoting/host/pam_authorization_factory_posix.cc

Index: remoting/host/pam_authorization_factory_posix.cc
diff --git a/remoting/host/pam_authorization_factory_posix.cc b/remoting/host/pam_authorization_factory_posix.cc
index c89c71fbed954b470437e6e8ca2650b0218e764f..eef0c485e564b0b9f7c0c6cedad28e1ebd836810 100644
--- a/remoting/host/pam_authorization_factory_posix.cc
+++ b/remoting/host/pam_authorization_factory_posix.cc
@@ -24,6 +24,7 @@ class PamAuthorizer : public protocol::Authenticator {
 
   // protocol::Authenticator interface.
   virtual State state() const OVERRIDE;
+  virtual bool started() const OVERRIDE;
   virtual RejectionReason rejection_reason() const OVERRIDE;
   virtual void ProcessMessage(const buzz::XmlElement* message,
                               const base::Closure& resume_callback) OVERRIDE;
@@ -62,6 +63,10 @@ protocol::Authenticator::State PamAuthorizer::state() const {
   }
 }
 
+bool PamAuthorizer::started() const {
+  return underlying_->started();
+}
+
 protocol::Authenticator::RejectionReason
 PamAuthorizer::rejection_reason() const {
   if (local_login_status_ == DISALLOWED) {