import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

layout/xul/MenuBoxObject.h

@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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/. */
+
+#ifndef mozilla_dom_MenuBoxObject_h
+#define mozilla_dom_MenuBoxObject_h
+
+#include "mozilla/dom/BoxObject.h"
+
+namespace mozilla {
+namespace dom {
+
+class KeyboardEvent;
+
+class MenuBoxObject final : public BoxObject
+{
+public:
+
+  MenuBoxObject();
+
+  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+  void OpenMenu(bool aOpenFlag);
+  already_AddRefed<Element> GetActiveChild();
+  void SetActiveChild(Element* arg);
+  bool HandleKeyPress(KeyboardEvent& keyEvent);
+  bool OpenedWithKey();
+
+private:
+  ~MenuBoxObject();
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_MenuBoxObject_h