Settings: Users: Make isCurrentUserOwner async

chrome/browser/chromeos/extensions/users_private/users_private_api.h

Index: chrome/browser/chromeos/extensions/users_private/users_private_api.h
diff --git a/chrome/browser/chromeos/extensions/users_private/users_private_api.h b/chrome/browser/chromeos/extensions/users_private/users_private_api.h
index 78f141faa738fd69d72b8eea37f684dfb7518c40..7a09f3cde695127dd8abb53c88bbf48a036a91d5 100644
--- a/chrome/browser/chromeos/extensions/users_private/users_private_api.h
+++ b/chrome/browser/chromeos/extensions/users_private/users_private_api.h
@@ -89,6 +89,8 @@ class UsersPrivateIsCurrentUserOwnerFunction
   ResponseAction Run() override;
 
  private:
+  void IsOwnerCallback(bool is_owner);
+
   ChromeExtensionFunctionDetails chrome_details_;
 
   DISALLOW_COPY_AND_ASSIGN(UsersPrivateIsCurrentUserOwnerFunction);