kiosk: Support update url for enterprise.

chrome/browser/chromeos/ownership/owner_settings_service_chromeos.cc

Index: chrome/browser/chromeos/ownership/owner_settings_service_chromeos.cc
diff --git a/chrome/browser/chromeos/ownership/owner_settings_service_chromeos.cc b/chrome/browser/chromeos/ownership/owner_settings_service_chromeos.cc
index 3609c7f7736f804515219768e0e7f868cda4ba0c..f7a3e44a9223970da826ad805aba417f70652ec5 100644
--- a/chrome/browser/chromeos/ownership/owner_settings_service_chromeos.cc
+++ b/chrome/browser/chromeos/ownership/owner_settings_service_chromeos.cc
@@ -398,6 +398,12 @@ void OwnerSettingsServiceChromeOS::UpdateDeviceSettings(
                   &kiosk_app_id)) {
             account->mutable_kiosk_app()->set_app_id(kiosk_app_id);
           }
+          std::string kiosk_app_update_url;
+          if (entry_dict->GetStringWithoutPathExpansion(
+                  kAccountsPrefDeviceLocalAccountsKeyKioskAppUpdateURL,
+                  &kiosk_app_update_url)) {
+            account->mutable_kiosk_app()->set_update_url(kiosk_app_update_url);
+          }
         } else {
           NOTREACHED();
         }