Add UI components for license type selection in ChromeOS login UI.

components/policy/core/common/cloud/enterprise_metrics.h

Index: components/policy/core/common/cloud/enterprise_metrics.h
diff --git a/components/policy/core/common/cloud/enterprise_metrics.h b/components/policy/core/common/cloud/enterprise_metrics.h
index b61fe35fb6308f3a12f7908a8a30fc4a885a6acf..1750dd19651571d54b150a3fd6afd2c4fbb9888e 100644
--- a/components/policy/core/common/cloud/enterprise_metrics.h
+++ b/components/policy/core/common/cloud/enterprise_metrics.h
@@ -229,6 +229,8 @@ enum MetricEnrollment {
   kMetricEnrollmentActiveDirectoryPolicyFetchFailed = 55,
   // Failed to store DM token into the local state.
   kMetricEnrollmentStoreDMTokenFailed = 56,
+  // Failed to get available licenses.
+  kEnrollmentLicenseRequestFailed = 57,

[emaxx, 2017/07/07 14:32:34]

nit: s/kEnrollmentLicenseRequestFailed/kMetricEnrollmentLicenseRequestFailed/
(following the style of the previous 56 items of the enum)

[Denis Kuznetsov (DE-MUC), 2017/07/13 18:44:03]

Done.

 };
 
 // Events related to policy refresh.