1 files changed, 3 insertions, 1 deletions
diff --git a/dom/base/nsContentCreatorFunctions.h b/dom/base/nsContentCreatorFunctions.h
index 9576d9ba8..a5c210500 100644
--- a/dom/base/nsContentCreatorFunctions.h
+++ b/dom/base/nsContentCreatorFunctions.h
@@ -24,6 +24,7 @@ namespace mozilla {
 namespace dom {
 class Element;
 class NodeInfo;
+struct CustomElementDefinition;
 } // namespace dom
 } // namespace mozilla
 
@@ -41,7 +42,8 @@ nsresult
 NS_NewHTMLElement(mozilla::dom::Element** aResult,
                   already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
                   mozilla::dom::FromParser aFromParser,
-                  const nsAString* aIs = nullptr);
+                  const nsAString* aIs = nullptr,
+                  mozilla::dom::CustomElementDefinition* aDefinition = nullptr);
 
 // First argument should be nsHTMLTag, but that adds dependency to parser
 // for a bunch of files.