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 4e4f710169aa03d41cefe9c432a8c15374e1ff22..cdb90d6f2d12e28ea5f5344ecddb0cc3a1b75be3 100644
--- a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
@@ -646,10 +646,13 @@ 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();
+    }
   }
 }