1 files changed, 5 insertions, 1 deletions
diff --git a/dom/base/Element.h b/dom/base/Element.h
index aa917bffc..6b55cf8cd 100644
--- a/dom/base/Element.h
+++ b/dom/base/Element.h
@@ -41,6 +41,7 @@
 #include "Units.h"
 #include "DOMIntersectionObserver.h"
 
+class mozAutoDocUpdate;
 class nsIFrame;
 class nsIDOMMozNamedAttrMap;
 class nsIURI;
@@ -1269,6 +1270,7 @@ protected:
    * @param aFireMutation should mutation-events be fired?
    * @param aNotify       should we notify document-observers?
    * @param aCallAfterSetAttr should we call AfterSetAttr?
+   * @param aComposedDocument The current composed document of the element.
    */
   nsresult SetAttrAndNotify(int32_t aNamespaceID,
                             nsIAtom* aName,
@@ -1278,7 +1280,9 @@ protected:
                             uint8_t aModType,
                             bool aFireMutation,
                             bool aNotify,
-                            bool aCallAfterSetAttr);
+                            bool aCallAfterSetAttr,
+                            nsIDocument* aComposedDocument,
+                            const mozAutoDocUpdate& aGuard);
 
   /**
    * Scroll to a new position using behavior evaluated from CSS and