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 0a365e170612f2eca2e85e3a5e61537afbc291f8..9cd6abc0c4ed6c95aeff07953d4a2e784e3afac3 100644
--- a/remoting/host/chromoting_host.cc
+++ b/remoting/host/chromoting_host.cc
@@ -148,7 +148,7 @@ void ChromotingHost::SetMaximumSessionDuration(
 
 ////////////////////////////////////////////////////////////////////////////
 // protocol::ClientSession::EventHandler implementation.
-void ChromotingHost::OnSessionAuthenticated(ClientSession* client) {
+bool ChromotingHost::OnSessionAuthenticated(ClientSession* client) {
   DCHECK(CalledOnValidThread());
 
   login_backoff_.Reset();
@@ -176,9 +176,7 @@ 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) {