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

remoting/host/desktop_process_main.cc

Index: remoting/host/desktop_process_main.cc
diff --git a/remoting/host/desktop_process_main.cc b/remoting/host/desktop_process_main.cc
index 141d747fb4f74f5865bb1501851be99455107fd6..b1a7433ed0fe19cb2720ada15f74af7d2ec75f08 100644
--- a/remoting/host/desktop_process_main.cc
+++ b/remoting/host/desktop_process_main.cc
@@ -123,13 +123,9 @@ int DesktopProcessMain(int argc, char** argv) {
 
   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);