diff --git a/mozilla/content/shared/public/nsLayoutAtomList.h b/mozilla/content/shared/public/nsLayoutAtomList.h
index f2bc980e6ee..99605f22bc2 100644
--- a/mozilla/content/shared/public/nsLayoutAtomList.h
+++ b/mozilla/content/shared/public/nsLayoutAtomList.h
@@ -169,6 +169,8 @@ LAYOUT_ATOM(ondraggesture, "ondraggesture")
 LAYOUT_ATOM(ondragover, "ondragover")
 LAYOUT_ATOM(onerror, "onerror")
 LAYOUT_ATOM(onfocus, "onfocus")
+LAYOUT_ATOM(onformchange, "onformchange")
+LAYOUT_ATOM(onforminput, "onforminput")
 LAYOUT_ATOM(oninput, "oninput")
 LAYOUT_ATOM(onkeydown, "onkeydown")
 LAYOUT_ATOM(onkeypress, "onkeypress")