1 files changed, 2 insertions, 3 deletions
diff --git a/dom/base/CustomElementRegistry.cpp b/dom/base/CustomElementRegistry.cpp
index 47601aabb..99452df65 100644
--- a/dom/base/CustomElementRegistry.cpp
+++ b/dom/base/CustomElementRegistry.cpp
@@ -243,12 +243,11 @@ CustomElementRegistry::~CustomElementRegistry()
 }
 
 CustomElementDefinition*
-CustomElementRegistry::LookupCustomElementDefinition(const nsAString& aLocalName,
+CustomElementRegistry::LookupCustomElementDefinition(nsIAtom* aNameAtom,
                                                      nsIAtom* aTypeAtom) const
 {
-  nsCOMPtr<nsIAtom> localNameAtom = NS_Atomize(aLocalName);
   CustomElementDefinition* data = mCustomDefinitions.GetWeak(aTypeAtom);
-  if (data && data->mLocalName == localNameAtom) {
+  if (data && data->mLocalName == aNameAtom) {
     return data;
   }