[Draft] Fix canceling pin prompt causes host overload

remoting/protocol/connection_to_host.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 "remoting/protocol/connection_to_host.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "remoting/base/constants.h"
@@ skipping 134 matching lines @@
 void ConnectionToHost::OnSessionStateChange(
     Session::State state) {
   DCHECK(CalledOnValidThread());
   DCHECK(event_callback_);
 
   switch (state) {
     case Session::INITIALIZING:
     case Session::CONNECTING:
     case Session::ACCEPTING:
     case Session::CONNECTED:
+    case Session::AUTHENTICATING:
       // Don't care about these events.
       break;
 
     case Session::AUTHENTICATED:
       SetState(AUTHENTICATED, OK);
 
       control_dispatcher_.reset(new ClientControlDispatcher());
       control_dispatcher_->Init(
           session_.get(), session_->config().control_config(),
           base::Bind(&ConnectionToHost::OnChannelInitialized,
@@ skipping 116 matching lines @@
 
   if (state != state_) {
     state_ = state;
     error_ = error;
     event_callback_->OnConnectionState(state_, error_);
   }
 }
 
 }  // namespace protocol
 }  // namespace remoting