Make Hands-Off Zero-Touch Enrollment compatibile with tests

chrome/browser/chromeos/login/enrollment/enrollment_screen.cc

Index: chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
diff --git a/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc b/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
index ee08d9c854280f997194d4f073008023401461bf..b82f94da26b8b17e9030c04594cf1e447489d995 100644
--- a/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
+++ b/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
@@ -57,13 +57,6 @@ constexpr double kMultiplyFactor = 1.5;
 constexpr double kJitterFactor = 0.1;           // +/- 10% jitter
 constexpr int64_t kMaxDelayMS = 8 * 60 * 1000;  // 8 minutes
 
-// Helper function. Returns true if we are using Hands Off Enrollment.
-bool UsingHandsOffEnrollment() {
-  return policy::DeviceCloudPolicyManagerChromeOS::
-             GetZeroTouchEnrollmentMode() ==
-         policy::ZeroTouchEnrollmentMode::HANDS_OFF;
-}
-
 }  // namespace
 
 namespace chromeos {
@@ -284,7 +277,7 @@ void EnrollmentScreen::OnEnrollmentError(policy::EnrollmentStatus status) {
     Show();
   } else {
     view_->ShowEnrollmentStatus(status);
-    if (UsingHandsOffEnrollment())
+    if (WizardController::UsingHandsOffEnrollment())
       AutomaticRetry();
   }
 }
@@ -293,7 +286,7 @@ void EnrollmentScreen::OnOtherError(
     EnterpriseEnrollmentHelper::OtherError error) {
   RecordEnrollmentErrorMetrics();
   view_->ShowOtherError(error);
-  if (UsingHandsOffEnrollment())
+  if (WizardController::UsingHandsOffEnrollment())
     AutomaticRetry();
 }
 
@@ -368,7 +361,7 @@ void EnrollmentScreen::ShowEnrollmentStatusOnSuccess() {
   retry_backoff_->InformOfRequest(true);
   if (elapsed_timer_)
     UMA_ENROLLMENT_TIME(kMetricEnrollmentTimeSuccess, elapsed_timer_);
-  if (UsingHandsOffEnrollment()) {
+  if (WizardController::UsingHandsOffEnrollment()) {
     OnConfirmationClosed();
   } else {
     view_->ShowEnrollmentStatus(