1 files changed, 1 insertions, 2 deletions
diff --git a/layout/forms/nsNumberControlFrame.h b/layout/forms/nsNumberControlFrame.h
index 47e32ad65..5396e7170 100644
--- a/layout/forms/nsNumberControlFrame.h
+++ b/layout/forms/nsNumberControlFrame.h
@@ -170,8 +170,7 @@ private:
   nsresult MakeAnonymousElement(Element** aResult,
                                 nsTArray<ContentInfo>& aElements,
                                 nsIAtom* aTagName,
-                                CSSPseudoElementType aPseudoType,
-                                nsStyleContext* aParentContext);
+                                CSSPseudoElementType aPseudoType);
 
   class SyncDisabledStateEvent;
   friend class SyncDisabledStateEvent;