Create the desktop environment before any of the channel were connected.

remoting/host/chromoting_host.cc

Index: remoting/host/chromoting_host.cc
diff --git a/remoting/host/chromoting_host.cc b/remoting/host/chromoting_host.cc
index 9f7de5613804b7f97250d119805a05965f50761a..653110bd58c07eb944f03919781ab2e603d54f5c 100644
--- a/remoting/host/chromoting_host.cc
+++ b/remoting/host/chromoting_host.cc
@@ -181,7 +181,7 @@ void ChromotingHost::SetMaximumSessionDuration(
 
 ////////////////////////////////////////////////////////////////////////////
 // protocol::ClientSession::EventHandler implementation.
-void ChromotingHost::OnSessionAuthenticated(ClientSession* client) {
+bool ChromotingHost::OnSessionAuthenticated(ClientSession* client) {
   DCHECK(network_task_runner_->BelongsToCurrentThread());
 
   login_backoff_.Reset();
@@ -209,9 +209,7 @@ void ChromotingHost::OnSessionAuthenticated(ClientSession* client) {
                     OnClientAuthenticated(jid));
   authenticating_client_ = false;
 
-  if (reject_authenticating_client_) {
-    client->DisconnectSession();
-  }
+  return !reject_authenticating_client_;
 }
 
 void ChromotingHost::OnSessionChannelsConnected(ClientSession* client) {