Update GnubbyAuthHandler to use the current session ID

remoting/host/security_key/fake_remote_security_key_ipc_client.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 "remoting/host/security_key/fake_remote_security_key_ipc_client.h"
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/macros.h"
@@ skipping 88 matching lines @@
     IPC_MESSAGE_HANDLER(ChromotingNetworkToRemoteSecurityKeyMsg_Response,
                         OnSecurityKeyResponse)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   CHECK(handled) << "Received unexpected IPC type: " << message.type();
   return handled;
 }
 
 void FakeRemoteSecurityKeyIpcClient::OnChannelConnected(int32_t peer_pid) {
+  ipc_channel_connected_ = true;
   channel_event_callback_.Run();
 }
 
 void FakeRemoteSecurityKeyIpcClient::OnChannelError() {
+  ipc_channel_connected_ = false;
   channel_event_callback_.Run();
 }
 
 void FakeRemoteSecurityKeyIpcClient::OnConnectionDetails(
     const std::string& channel_name) {
   last_message_received_ = channel_name;
   channel_event_callback_.Run();
 }
 
 void FakeRemoteSecurityKeyIpcClient::OnSecurityKeyResponse(
     const std::string& request_data) {
   last_message_received_ = request_data;
   channel_event_callback_.Run();
 }
 
 }  // namespace remoting