mash: Add touch-hud app.

ash/touch_hud/mus/main.cc

Index: ash/touch_hud/mus/main.cc
diff --git a/services/ui/demo/main.cc b/ash/touch_hud/mus/main.cc
similarity index 75%
copy from services/ui/demo/main.cc
copy to ash/touch_hud/mus/main.cc
index 2341096dcf0e9103b1547026f30e1527689b81c1..f76871a083752d5d5b5f231469fba173641aef3f 100644
--- a/services/ui/demo/main.cc
+++ b/ash/touch_hud/mus/main.cc
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "ash/touch_hud/mus/touch_hud_application.h"
 #include "mojo/public/c/system/main.h"
 #include "services/shell/public/cpp/application_runner.h"
-#include "services/ui/demo/mus_demo.h"
 
 MojoResult MojoMain(MojoHandle shell_handle) {
-  shell::ApplicationRunner runner(new ui::demo::MusDemo);
+  shell::ApplicationRunner runner(new ash::touch_hud::TouchHudApplication);
   runner.set_message_loop_type(base::MessageLoop::TYPE_UI);
   return runner.Run(shell_handle);
 }