Add the ability to show a demo app on OOBE if a machine is derelict.

chrome/chrome_browser_chromeos.gypi

Index: chrome/chrome_browser_chromeos.gypi
diff --git a/chrome/chrome_browser_chromeos.gypi b/chrome/chrome_browser_chromeos.gypi
index bea3f82e87fcb9ef4ec6bd1afe27d10cba852e72..ad90a0e90816e12c925db4fd2ff51ebc8ebe6249 100644
--- a/chrome/chrome_browser_chromeos.gypi
+++ b/chrome/chrome_browser_chromeos.gypi
@@ -391,6 +391,8 @@
         'browser/chromeos/first_run/steps/tray_step.cc',
         'browser/chromeos/first_run/steps/tray_step.h',
         'browser/chromeos/genius_app/app_id.h',
+        'browser/chromeos/idle_detector.cc',
+        'browser/chromeos/idle_detector.h',
         'browser/chromeos/imageburner/burn_controller.cc',
         'browser/chromeos/imageburner/burn_controller.h',
         'browser/chromeos/imageburner/burn_device_handler.cc',
@@ -462,6 +464,8 @@
         'browser/chromeos/login/default_pinned_apps_field_trial.h',
         'browser/chromeos/login/default_user_images.cc',
         'browser/chromeos/login/default_user_images.h',
+        'browser/chromeos/login/demo_mode/demo_app_launcher.cc',
+        'browser/chromeos/login/demo_mode/demo_app_launcher.h',
         'browser/chromeos/login/enrollment/enrollment_screen.cc',
         'browser/chromeos/login/enrollment/enrollment_screen.h',
         'browser/chromeos/login/enrollment/enrollment_screen_actor.h',