| Index: Source/core/html/HTMLFieldSetElement.h | 
| diff --git a/Source/core/html/HTMLFieldSetElement.h b/Source/core/html/HTMLFieldSetElement.h | 
| index 7158af874563f3367287275442a90c8091411f49..ef727e779ead4288f4263f24a9a10417d2f67426 100644 | 
| --- a/Source/core/html/HTMLFieldSetElement.h | 
| +++ b/Source/core/html/HTMLFieldSetElement.h | 
| @@ -57,6 +57,7 @@ private: | 
| virtual bool isValidElement() override final; | 
| virtual void childrenChanged(const ChildrenChange&) override; | 
| virtual bool areAuthorShadowsAllowed() const override { return false; } | 
| +    virtual bool isSubmittableElement() override; | 
|  | 
| static void invalidateDisabledStateUnder(Element&); | 
| void refreshElementsIfNeeded() const; | 
|  |