Revert of ChromeOS login webui refactoring: split user selection/gaia login screens.

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 4136acdebfccd6fab1f2807d985d7d758eb53554..4922576831d529f308881db30214f6a21ef0dad4 100644
--- a/chrome/browser/chromeos/login/existing_user_controller.cc
+++ b/chrome/browser/chromeos/login/existing_user_controller.cc
@@ -609,6 +609,7 @@
 void ExistingUserController::ShowWrongHWIDScreen() {
   scoped_ptr<base::DictionaryValue> params;
   host_->StartWizard(WizardController::kWrongHWIDScreenName, params.Pass());
+  login_display_->OnFadeOut();
 }
 
 void ExistingUserController::Signout() {
@@ -653,22 +654,26 @@
   }
   host_->StartWizard(WizardController::kEnrollmentScreenName,
                      params.Pass());
+  login_display_->OnFadeOut();
 }
 
 void ExistingUserController::ShowResetScreen() {
   scoped_ptr<base::DictionaryValue> params;
   host_->StartWizard(WizardController::kResetScreenName, params.Pass());
+  login_display_->OnFadeOut();
 }
 
 void ExistingUserController::ShowKioskEnableScreen() {
   scoped_ptr<base::DictionaryValue> params;
   host_->StartWizard(WizardController::kKioskEnableScreenName, params.Pass());
+  login_display_->OnFadeOut();
 }
 
 void ExistingUserController::ShowKioskAutolaunchScreen() {
   scoped_ptr<base::DictionaryValue> params;
   host_->StartWizard(WizardController::kKioskAutolaunchScreenName,
                      params.Pass());
+  login_display_->OnFadeOut();
 }
 
 void ExistingUserController::ShowTPMError() {
@@ -779,6 +784,9 @@
                                     this);
 
   display_email_.clear();
+
+  // Notify LoginDisplay to allow it provide visual feedback to user.
+  login_display_->OnLoginSuccess(user_context.GetUserID());
 }
 
 void ExistingUserController::OnProfilePrepared(Profile* profile) {
@@ -819,6 +827,7 @@
   // Inform |login_status_consumer_| about successful login.
   if (login_status_consumer_)
     login_status_consumer_->OnLoginSuccess(UserContext());
+  login_display_->OnFadeOut();
 }
 
 void ExistingUserController::OnOffTheRecordLoginSuccess() {