Don't start FRE from the login screen

chrome/browser/chromeos/login/wizard_controller.cc

Index: chrome/browser/chromeos/login/wizard_controller.cc
diff --git a/chrome/browser/chromeos/login/wizard_controller.cc b/chrome/browser/chromeos/login/wizard_controller.cc
index e8da5c9e97c1c303b41f6d951112f41b3d44ac63..89806379f57edabee2bc20b598bbe74f865834a8 100644
--- a/chrome/browser/chromeos/login/wizard_controller.cc
+++ b/chrome/browser/chromeos/login/wizard_controller.cc
@@ -32,6 +32,7 @@
 #include "chrome/browser/chromeos/arc/arc_util.h"
 #include "chrome/browser/chromeos/customization/customization_document.h"
 #include "chrome/browser/chromeos/login/enrollment/auto_enrollment_check_screen.h"
+#include "chrome/browser/chromeos/login/enrollment/auto_enrollment_controller.h"
 #include "chrome/browser/chromeos/login/enrollment/enrollment_screen.h"
 #include "chrome/browser/chromeos/login/existing_user_controller.h"
 #include "chrome/browser/chromeos/login/helper.h"
@@ -586,7 +587,7 @@ void WizardController::ShowAutoEnrollmentCheckScreen() {
       AutoEnrollmentCheckScreen::Get(screen_manager());
   if (retry_auto_enrollment_check_)
     screen->ClearState();
-  screen->set_auto_enrollment_controller(host_->GetAutoEnrollmentController());
+  screen->set_auto_enrollment_controller(GetAutoEnrollmentController());
   SetCurrentScreen(screen);
 }
 
@@ -930,7 +931,7 @@ void WizardController::PerformPostEulaActions() {
   // ChromiumOS builds would go though this code path too.
   NetworkHandler::Get()->network_state_handler()->SetCheckPortalList(
       NetworkStateHandler::kDefaultCheckPortalList);
-  host_->GetAutoEnrollmentController()->Start();
+  GetAutoEnrollmentController()->Start();
   host_->PrewarmAuthentication();
   network_portal_detector::GetInstance()->Enable(true);
 }
@@ -1539,4 +1540,10 @@ void WizardController::StartEnrollmentScreen(bool force_interactive) {
   SetCurrentScreen(screen);
 }
 
+AutoEnrollmentController* WizardController::GetAutoEnrollmentController() {
+  if (!auto_enrollment_controller_)
+    auto_enrollment_controller_ = base::MakeUnique<AutoEnrollmentController>();
+  return auto_enrollment_controller_.get();
+}
+
 }  // namespace chromeos