1 files changed, 25 insertions, 0 deletions
diff --git a/layout/base/ArenaObjectID.h b/layout/base/ArenaObjectID.h
new file mode 100644
index 0000000000..6177afcc2d
--- /dev/null
+++ b/layout/base/ArenaObjectID.h
@@ -0,0 +1,25 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* enum type for objects that can be allocated by an nsPresArena */
+
+#ifndef mozilla_ArenaObjectID_h
+#define mozilla_ArenaObjectID_h
+
+#include "nsQueryFrame.h"
+
+namespace mozilla {
+
+enum ArenaObjectID {
+#define PRES_ARENA_OBJECT(name_) eArenaObjectID_##name_,
+#include "nsPresArenaObjectList.h"
+#undef PRES_ARENA_OBJECT
+  eArenaObjectID_COUNT
+};
+
+};  // namespace mozilla
+
+#endif