Added UI to enable debugging features on CrOS

chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
index c959dd64e1e040da7d431cde6ce2e372ae04588f..c932864d2bbe44426db879d77dec95860feb3bbc 100644
--- a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
@@ -670,10 +670,13 @@ void GaiaScreenHandler::ShowGaiaScreenIfReady() {
   }
   signin_screen_handler_->UpdateState(ErrorScreenActor::ERROR_REASON_UPDATE);
 
-  PrefService* prefs = g_browser_process->local_state();
-  if (prefs->GetBoolean(prefs::kFactoryResetRequested)) {
-    if (core_oobe_actor_)
+  if (core_oobe_actor_) {
+    PrefService* prefs = g_browser_process->local_state();
+    if (prefs->GetBoolean(prefs::kFactoryResetRequested)) {
       core_oobe_actor_->ShowDeviceResetScreen();
+    } else if (prefs->GetBoolean(prefs::kDebuggingFeaturesRequested)) {
+      core_oobe_actor_->ShowEnableDebuggingScreen();
+    }
   }
 }