Show realm in device owner notice

ash/common/system/tray/system_tray_delegate.h

Index: ash/common/system/tray/system_tray_delegate.h
diff --git a/ash/common/system/tray/system_tray_delegate.h b/ash/common/system/tray/system_tray_delegate.h
index 5e8cf41b48aad5a2d63c363dec8f40c904db36a8..98d1aacc32c74692a1a5447817cb87bed95348af 100644
--- a/ash/common/system/tray/system_tray_delegate.h
+++ b/ash/common/system/tray/system_tray_delegate.h
@@ -104,6 +104,10 @@ class ASH_EXPORT SystemTrayDelegate {
   // Returns the domain that manages the device, if it is enterprise-enrolled.
   virtual std::string GetEnterpriseDomain() const;
 
+  // Returns the realm that manages the device, if it is enterprise enrolled
+  // with Active Directory and joined the realm (Active Directory domain).
+  virtual std::string GetEnterpriseRealm() const;
+
   // Returns notification for enterprise enrolled devices.
   virtual base::string16 GetEnterpriseMessage() const;