| Index: Source/core/html/HTMLFieldSetElement.cpp | 
| diff --git a/Source/core/html/HTMLFieldSetElement.cpp b/Source/core/html/HTMLFieldSetElement.cpp | 
| index f5422591ef3be4d4673db514ae2d0812591b5ea4..dc5accdde9a6aacb503ef1182ec0e3cb340acaa0 100644 | 
| --- a/Source/core/html/HTMLFieldSetElement.cpp | 
| +++ b/Source/core/html/HTMLFieldSetElement.cpp | 
| @@ -76,6 +76,11 @@ bool HTMLFieldSetElement::isValidElement() | 
| return true; | 
| } | 
|  | 
| +bool HTMLFieldSetElement::isSubmittableElement() | 
| +{ | 
| +    return false; | 
| +} | 
| + | 
| void HTMLFieldSetElement::invalidateDisabledStateUnder(Element& base) | 
| { | 
| for (HTMLFormControlElement& element : Traversal<HTMLFormControlElement>::descendantsOf(base)) | 
|  |