Add more detailed UMA reporting on enrollment errors.

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 72332bd14aef0d3527624b519e8bf4a049fae587..7e0278a89439248020eeb8c3e466ca8a69dbc8e6 100644
--- a/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
+++ b/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
@@ -278,10 +278,16 @@ void EnrollmentScreen::ReportEnrollmentStatus(policy::EnrollmentStatus status) {
       UMAFailure(policy::kMetricEnrollmentWrongUserError);
       return;
     case policy::EnrollmentStatus::STATUS_NO_STATE_KEYS:
+      UMAFailure(policy::kMetricEnrollmentNoStateKeys);
+      return;
     case policy::EnrollmentStatus::STATUS_VALIDATION_FAILED:
+      UMAFailure(policy::kMetricEnrollmentPolicyValidationFailed);
+      return;
     case policy::EnrollmentStatus::STATUS_STORE_ERROR:
+      UMAFailure(policy::kMetricEnrollmentCloudPolicyStoreError);
+      return;
     case policy::EnrollmentStatus::STATUS_LOCK_ERROR:
-      UMAFailure(policy::kMetricEnrollmentOtherFailed);
+      UMAFailure(policy::kMetricEnrollmentLockBackendError);
       return;
     case policy::EnrollmentStatus::STATUS_ROBOT_AUTH_FETCH_FAILED:
       UMAFailure(policy::kMetricEnrollmentRobotAuthCodeFetchFailed);