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

remoting/host/client_session.h

 // 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.
 
 #ifndef REMOTING_HOST_CLIENT_SESSION_H_
 #define REMOTING_HOST_CLIENT_SESSION_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 35 matching lines @@
 // per-client state.
 class ClientSession
     : public base::NonThreadSafe,
       public protocol::HostStub,
       public protocol::ConnectionToClient::EventHandler,
       public ClientSessionControl {
  public:
   // Callback interface for passing events to the ChromotingHost.
   class EventHandler {
    public:
-    // Called after authentication has finished successfully.
-    virtual void OnSessionAuthenticated(ClientSession* client) = 0;
+    // Called after authentication has finished successfully. Returns true if
+    // the connection is allowed, or false otherwise.
+    virtual bool OnSessionAuthenticated(ClientSession* client) = 0;
 
     // Called after we've finished connecting all channels.
     virtual void OnSessionChannelsConnected(ClientSession* client) = 0;
 
     // Called after authentication has failed. Must not tear down this
     // object. OnSessionClosed() is notified after this handler
     // returns.
     virtual void OnSessionAuthenticationFailed(ClientSession* client) = 0;
 
     // Called after connection has failed or after the client closed it.
@@ skipping 154 matching lines @@
 
   // Used to apply client-requested changes in screen resolution.
   scoped_ptr<ScreenControls> screen_controls_;
 
   DISALLOW_COPY_AND_ASSIGN(ClientSession);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_CLIENT_SESSION_H_