Rewrite of the EnrollEnterpriseDevice PyAuto automation hook for WebUI.

chrome/browser/ui/webui/chromeos/login/enterprise_oauth_enrollment_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/enterprise_oauth_enrollment_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/enterprise_oauth_enrollment_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/enterprise_oauth_enrollment_screen_handler.cc
index 99bc8fc30eaee2ec493d82aa5c66a57d54bfc39d..3e923086087e8d94b940638db74e7017899d6270 100644
--- a/chrome/browser/ui/webui/chromeos/login/enterprise_oauth_enrollment_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/enterprise_oauth_enrollment_screen_handler.cc
@@ -152,7 +152,7 @@ void EnterpriseOAuthEnrollmentScreenHandler::ShowConfirmationScreen() {
   ShowStep(kEnrollmentStepSuccess);
   if (!is_auto_enrollment_ || enrollment_failed_once_)
     ResetAuth();
-  NotifyObservers(true);
+  NotifyObservers(true, "");
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::ShowAuthError(
@@ -186,31 +186,26 @@ void EnterpriseOAuthEnrollmentScreenHandler::ShowAuthError(
 void EnterpriseOAuthEnrollmentScreenHandler::ShowAccountError() {
   UMAFailure(policy::kMetricEnrollmentNotSupported);
   ShowError(IDS_ENTERPRISE_ENROLLMENT_ACCOUNT_ERROR, true);
-  NotifyObservers(false);
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::ShowSerialNumberError() {
   UMAFailure(policy::kMetricEnrollmentInvalidSerialNumber);
   ShowError(IDS_ENTERPRISE_ENROLLMENT_SERIAL_NUMBER_ERROR, true);
-  NotifyObservers(false);
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::ShowEnrollmentModeError() {
   UMAFailure(policy::kMetricEnrollmentInvalidEnrollmentMode);
   ShowError(IDS_ENTERPRISE_ENROLLMENT_MODE_ERROR, false);
-  NotifyObservers(false);
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::ShowFatalAuthError() {
   UMAFailure(policy::kMetricEnrollmentLoginFailed);
   ShowError(IDS_ENTERPRISE_ENROLLMENT_FATAL_AUTH_ERROR, false);
-  NotifyObservers(false);
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::ShowFatalEnrollmentError() {
   UMAFailure(policy::kMetricEnrollmentOtherFailed);
   ShowError(IDS_ENTERPRISE_ENROLLMENT_FATAL_ENROLLMENT_ERROR, false);
-  NotifyObservers(false);
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::ShowAutoEnrollmentError() {
@@ -226,13 +221,11 @@ void EnterpriseOAuthEnrollmentScreenHandler::ShowAutoEnrollmentError() {
       "oobe.OAuthEnrollmentScreen.setIsAutoEnrollment", value);
 
   ShowError(IDS_ENTERPRISE_AUTO_ENROLLMENT_ERROR, false);
-  NotifyObservers(false);
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::ShowNetworkEnrollmentError() {
   UMAFailure(policy::kMetricEnrollmentNetworkFailed);
   ShowError(IDS_ENTERPRISE_ENROLLMENT_NETWORK_ENROLLMENT_ERROR, true);
-  NotifyObservers(false);
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::SubmitTestCredentials(
@@ -399,6 +392,8 @@ void EnterpriseOAuthEnrollmentScreenHandler::HandleClose(
     // In that case, keep the profile data.
     DoClose(false);
   }
+
+  NotifyObservers(false, "Oauth enrollment cancelled");
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::HandleCompleteLogin(
@@ -467,6 +462,7 @@ void EnterpriseOAuthEnrollmentScreenHandler::ShowError(int message_id,
   web_ui()->CallJavascriptFunction("oobe.OAuthEnrollmentScreen.showError",
                                    message_value,
                                    retry_value);
+  NotifyObservers(false, message);
 }
 
 void EnterpriseOAuthEnrollmentScreenHandler::ShowWorking(int message_id) {