1 files changed, 0 insertions, 29 deletions
diff --git a/dom/base/nsContentUtils.cpp b/dom/base/nsContentUtils.cpp
index 96f9065803..3d23bedea5 100644
--- a/dom/base/nsContentUtils.cpp
+++ b/dom/base/nsContentUtils.cpp
@@ -9673,35 +9673,6 @@ nsContentUtils::EnqueueLifecycleCallback(nsIDocument::ElementCallbackType aType,
                                                   aDefinition);
 }
 
-/* static */ void
-nsContentUtils::GetCustomPrototype(nsIDocument* aDoc,
-                                   int32_t aNamespaceID,
-                                   nsIAtom* aAtom,
-                                   JS::MutableHandle<JSObject*> aPrototype)
-{
-  MOZ_ASSERT(aDoc);
-
-  // To support imported document.
-  nsCOMPtr<nsIDocument> doc = aDoc->MasterDocument();
-
-  if (aNamespaceID != kNameSpaceID_XHTML ||
-      !doc->GetDocShell()) {
-    return;
-  }
-
-  nsCOMPtr<nsPIDOMWindowInner> window(doc->GetInnerWindow());
-  if (!window) {
-    return;
-  }
-
-  RefPtr<CustomElementRegistry> registry(window->CustomElements());
-  if (!registry) {
-    return;
-  }
-
-  return registry->GetCustomPrototype(aAtom, aPrototype);
-}
-
 /* static */ bool
 nsContentUtils::AttemptLargeAllocationLoad(nsIHttpChannel* aChannel)
 {