Call the DisconnectWindow interface methods on the UI thread.

remoting/host/disconnect_window_linux.cc

 // Copyright (c) 2011 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/disconnect_window.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 
 namespace {
 class DisconnectWindowLinux : public remoting::DisconnectWindow {
  public:
   DisconnectWindowLinux() {}
   virtual void Show(remoting::ChromotingHost* host,
-                   const std::string& username) OVERRIDE;
+                    const std::string& username) OVERRIDE;
   virtual void Hide() OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DisconnectWindowLinux);
 };
 }  // namespace
 
 void DisconnectWindowLinux::Show(remoting::ChromotingHost* host,
                                  const std::string& username) {
   NOTIMPLEMENTED();
 }
 
 void DisconnectWindowLinux::Hide() {
   NOTIMPLEMENTED();
 }
 
 remoting::DisconnectWindow* remoting::DisconnectWindow::Create() {
   return new DisconnectWindowLinux;
 }