Add CheckAndroidManagement to ARC sign-in flow.

chrome/browser/chromeos/arc/arc_optin_uma.h

Index: chrome/browser/chromeos/arc/arc_optin_uma.h
diff --git a/chrome/browser/chromeos/arc/arc_optin_uma.h b/chrome/browser/chromeos/arc/arc_optin_uma.h
index 11eabe148618a85c6e15859a192365b4ca2ac600..99bec1bfd87b9ab911ff382504bb7425afd3a2ca 100644
--- a/chrome/browser/chromeos/arc/arc_optin_uma.h
+++ b/chrome/browser/chromeos/arc/arc_optin_uma.h
@@ -20,14 +20,15 @@ enum class OptInActionType : int {
 };
 
 enum class OptInCancelReason {
-  USER_CANCEL = 0,                // Canceled by user.
-  UNKNOWN_ERROR = 1,              // Unclassified failure.
-  NETWORK_ERROR = 2,              // Network failure.
-  SERVICE_UNAVAILABLE = 3,        // GMS Services are not available.
-  BAD_AUTHENTICATION = 4,         // Bad authentication returned by server.
-  GMS_CORE_NOT_AVAILABLE = 5,     // GMS Core is not available.
-  CLOUD_PROVISION_FLOW_FAIL = 6,  // Cloud provision flow failed.
-  SIZE,                           // The size of this enum; keep last.
+  USER_CANCEL = 0,                 // Canceled by user.
+  UNKNOWN_ERROR = 1,               // Unclassified failure.
+  NETWORK_ERROR = 2,               // Network failure.
+  SERVICE_UNAVAILABLE = 3,         // GMS Services are not available.
+  BAD_AUTHENTICATION = 4,          // Bad authentication returned by server.
+  GMS_CORE_NOT_AVAILABLE = 5,      // GMS Core is not available.
+  CLOUD_PROVISION_FLOW_FAIL = 6,   // Cloud provision flow failed.
+  ANDROID_MANAGEMENT_ENABLED = 7,  // Android management is enabled for user.

[bartfab (slow), 2016/04/18 15:06:15]

Nit 1: s/enabled/required/
Nit 2: consider s/ENABLED/REQUIRED/

[Polina Bondarenko, 2016/04/20 13:37:45]

Done.

+  SIZE,                            // The size of this enum; keep last.
 };
 
 void UpdateOptInActionUMA(OptInActionType type);