MacViews: Intercept events for Menus (after AppKit has interpreted keystrokes)

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 92ea8c4a29f0c5a811019a81cd9107e181e76ad5..49437d8ca94bf452bb5ac3cb1db77204e9e5fe4b 100644
--- a/ui/views/controls/menu/menu_controller.h
+++ b/ui/views/controls/menu/menu_controller.h
@@ -160,6 +160,10 @@ class VIEWS_EXPORT MenuController : public WidgetObserver {
   // corresponds to whether or not the menu should close.
   void OnDragComplete(bool should_close);
 
+  // Called while dispatching messages inside a menu run loop to intercept key
+  // events.
+  ui::PostDispatchAction OnWillDispatchEvent(const ui::Event& event);
+
   // Update the submenu's selection based on the current mouse location
   void UpdateSubmenuSelection(SubmenuView* source);