1 files changed, 4 insertions, 8 deletions
diff --git a/dom/xbl/XBLChildrenElement.h b/dom/xbl/XBLChildrenElement.h
index 4714da4a84..c010854742 100644
--- a/dom/xbl/XBLChildrenElement.h
+++ b/dom/xbl/XBLChildrenElement.h
@@ -37,14 +37,6 @@ public:
 
   virtual nsIDOMNode* AsDOMNode() override { return this; }
 
-  // nsIContent interface methods
-  virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
-                             bool aNotify) override;
-  virtual bool ParseAttribute(int32_t aNamespaceID,
-                              nsIAtom* aAttribute,
-                              const nsAString& aValue,
-                              nsAttrValue& aResult) override;
-
   void AppendInsertedChild(nsIContent* aChild)
   {
     mInsertedChildren.AppendElement(aChild);
@@ -147,6 +139,10 @@ public:
 protected:
   ~XBLChildrenElement();
 
+  virtual nsresult BeforeSetAttr(int32_t aNamespaceID, nsIAtom* aName,
+                                 const nsAttrValueOrString* aValue,
+                                 bool aNotify) override;
+
 private:
   nsTArray<nsIContent*> mInsertedChildren; // WEAK
   nsTArray<nsCOMPtr<nsIAtom> > mIncludes;