1 files changed, 5 insertions, 5 deletions
diff --git a/components/script/dom/webidls/HTMLOutputElement.webidl b/components/script/dom/webidls/HTMLOutputElement.webidl
index 28d853a0bbf..c44f2a7f44c 100644
--- a/components/script/dom/webidls/HTMLOutputElement.webidl
+++ b/components/script/dom/webidls/HTMLOutputElement.webidl
@@ -18,12 +18,12 @@ interface HTMLOutputElement : HTMLElement {
   [CEReactions]
            attribute DOMString value;
 
-  // readonly attribute boolean willValidate;
+  readonly attribute boolean willValidate;
   readonly attribute ValidityState validity;
-  // readonly attribute DOMString validationMessage;
-  // boolean checkValidity();
-  // boolean reportValidity();
-  // void setCustomValidity(DOMString error);
+  readonly attribute DOMString validationMessage;
+  boolean checkValidity();
+  boolean reportValidity();
+  void setCustomValidity(DOMString error);
 
   readonly attribute NodeList labels;
 };