Enable keyboard accelerators while a menu is open

ui/views/controls/menu/menu_key_event_handler.h

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_VIEWS_CONTROLS_MENU_MENU_KEY_EVENT_HANDLER_H_
+#define UI_VIEWS_CONTROLS_MENU_MENU_KEY_EVENT_HANDLER_H_
+
+#include "base/macros.h"
+#include "ui/events/event_handler.h"
+#include "ui/views/views_export.h"
+
+namespace ui {
+class Accelerator;
+}
+
+namespace views {
+
+// Handles key events while the menu is open.
+class VIEWS_EXPORT MenuKeyEventHandler : public ui::EventHandler {
+ public:
+  MenuKeyEventHandler();
+  ~MenuKeyEventHandler() override;
+
+  // ui::EventHandler:
+  void OnKeyEvent(ui::KeyEvent* event) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MenuKeyEventHandler);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_CONTROLS_MENU_MENU_KEY_EVENT_HANDLER_H_