cros: Replace WizardController string constants with OobeScreen values.

chrome/browser/chromeos/login/existing_user_controller.cc

Index: chrome/browser/chromeos/login/existing_user_controller.cc
diff --git a/chrome/browser/chromeos/login/existing_user_controller.cc b/chrome/browser/chromeos/login/existing_user_controller.cc
index 2808844b1bb75e8c3aaa0d3e071ebaab5bff6753..2df4994d51233e4fc5692c30d346ff2e5e5f7f3a 100644
--- a/chrome/browser/chromeos/login/existing_user_controller.cc
+++ b/chrome/browser/chromeos/login/existing_user_controller.cc
@@ -492,7 +492,7 @@ void ExistingUserController::SetDisplayEmail(const std::string& email) {
 }
 
 void ExistingUserController::ShowWrongHWIDScreen() {
-  host_->StartWizard(WizardController::kWrongHWIDScreenName);
+  host_->StartWizard(OobeScreen::SCREEN_WRONG_HWID);
 }
 
 void ExistingUserController::Signout() {
@@ -537,23 +537,23 @@ void ExistingUserController::OnEnrollmentOwnershipCheckCompleted(
 }
 
 void ExistingUserController::ShowEnrollmentScreen() {
-  host_->StartWizard(WizardController::kEnrollmentScreenName);
+  host_->StartWizard(OobeScreen::SCREEN_OOBE_ENROLLMENT);
 }
 
 void ExistingUserController::ShowResetScreen() {
-  host_->StartWizard(WizardController::kResetScreenName);
+  host_->StartWizard(OobeScreen::SCREEN_OOBE_RESET);
 }
 
 void ExistingUserController::ShowEnableDebuggingScreen() {
-  host_->StartWizard(WizardController::kEnableDebuggingScreenName);
+  host_->StartWizard(OobeScreen::SCREEN_OOBE_ENABLE_DEBUGGING);
 }
 
 void ExistingUserController::ShowKioskEnableScreen() {
-  host_->StartWizard(WizardController::kKioskEnableScreenName);
+  host_->StartWizard(OobeScreen::SCREEN_KIOSK_ENABLE);
 }
 
 void ExistingUserController::ShowKioskAutolaunchScreen() {
-  host_->StartWizard(WizardController::kKioskAutolaunchScreenName);
+  host_->StartWizard(OobeScreen::SCREEN_KIOSK_AUTOLAUNCH);
 }
 
 void ExistingUserController::ShowTPMError() {