Adding a unit test to verify the IPC channel between the network and desktop processes.

remoting/host/desktop_process_main.cc

 // 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.
 //
 // This file implements the Windows service controlling Me2Me host processes
 // running within user sessions.
 
 #include "remoting/host/desktop_process_main.h"
 
 #include "base/at_exit.h"
@@ skipping 104 matching lines @@
   std::string channel_name =
       command_line->GetSwitchValueASCII(kDaemonIpcSwitchName);
 
   if (channel_name.empty()) {
     Usage(command_line->GetProgram());
     return kUsageExitCode;
   }
 
   MessageLoop message_loop(MessageLoop::TYPE_UI);
   base::RunLoop run_loop;
-  base::Closure quit_ui_task_runner = base::Bind(
-      base::IgnoreResult(&base::SingleThreadTaskRunner::PostTask),
-      message_loop.message_loop_proxy(),
-      FROM_HERE, run_loop.QuitClosure());
   scoped_refptr<AutoThreadTaskRunner> ui_task_runner =
       new AutoThreadTaskRunner(message_loop.message_loop_proxy(),
-                               quit_ui_task_runner);
+                               run_loop.QuitClosure());
 
   DesktopProcess desktop_process(ui_task_runner, channel_name);
 
   // Create proper kind of desktop environment factory.
   scoped_ptr<DesktopEnvironmentFactory> desktop_environment_factory;
 #if defined(OS_WIN)
   desktop_environment_factory.reset(new SessionDesktopEnvironmentFactory(
       base::Bind(&DesktopProcess::InjectSas, desktop_process.AsWeakPtr())));
 #else  // !defined(OS_WIN)
   desktop_environment_factory.reset(new BasicDesktopEnvironmentFactory());
 #endif  // !defined(OS_WIN)
 
   if (!desktop_process.Start(desktop_environment_factory.Pass()))
     return kInitializationFailed;
 
   // Run the UI message loop.
   ui_task_runner = NULL;
   run_loop.Run();
 
   return kSuccessExitCode;
 }
 
 }  // namespace remoting
 
 #if !defined(OS_WIN)
 int main(int argc, char** argv) {
   return remoting::DesktopProcessMain(argc, argv);
 }
 #endif  // !defined(OS_WIN)