Enable keyboard accelerators while a menu is open

ui/views/controls/menu/menu_controller.h

Index: ui/views/controls/menu/menu_controller.h
diff --git a/ui/views/controls/menu/menu_controller.h b/ui/views/controls/menu/menu_controller.h
index a528e04c914c0f90df4384cad926ba326960ff21..9e1e3bb46b520c5780bba6e010116232864b8396 100644
--- a/ui/views/controls/menu/menu_controller.h
+++ b/ui/views/controls/menu/menu_controller.h
@@ -53,6 +53,7 @@ class MenuRunnerImpl;
 
 namespace test {
 class MenuControllerTest;
+class MenuControllerTestDeleter;
 }
 
 // MenuController -------------------------------------------------------------
@@ -188,6 +189,8 @@ class VIEWS_EXPORT MenuController : public WidgetObserver {
   friend class internal::MenuMessagePumpDispatcher;
   friend class internal::MenuRunnerImpl;
   friend class test::MenuControllerTest;
+  friend class test::MenuControllerTestDeleter;
+  friend class MenuEventFilter;
   friend class MenuHostRootView;
   friend class MenuItemView;
   friend class SubmenuView;