Enable keyboard accelerators while a menu is open

ui/views/views_delegate.h

Index: ui/views/views_delegate.h
diff --git a/ui/views/views_delegate.h b/ui/views/views_delegate.h
index e2f33b05caa5e032b7575788c8e6b364d7b61e6d..081c32fc26a992017b5a9433077e3c58c6f2a130 100644
--- a/ui/views/views_delegate.h
+++ b/ui/views/views_delegate.h
@@ -102,6 +102,10 @@ class VIEWS_EXPORT ViewsDelegate {
                                      int item_count,
                                      bool has_submenu);
 
+  // Will perform accelerator handling when for accelerators pressed while a
+  // menu is open.
+  virtual void HandleKeyEventOnMenu(ui::KeyEvent* event);
+
 #if defined(OS_WIN)
   // Retrieves the default window icon to use for windows if none is specified.
   virtual HICON GetDefaultWindowIcon() const;