Enable keyboard accelerators while a menu is open

ash/shell.h

Index: ash/shell.h
diff --git a/ash/shell.h b/ash/shell.h
index d2480a873c95cd8a5d93af6522bd5ae173709eb0..6af0ef1ff4eb11ecbfa5036b4d1c21d08c0c95bd 100644
--- a/ash/shell.h
+++ b/ash/shell.h
@@ -75,6 +75,7 @@ namespace ash {
 
 class AcceleratorController;
 class AccessibilityDelegate;
+class AshMenuEventFilterDelegate;
 class AppListController;
 class AshNativeCursorManager;
 class AutoclickController;
@@ -639,6 +640,7 @@ class ASH_EXPORT Shell : public SystemModalContainerEventFilterDelegate,
   scoped_ptr<UserMetricsRecorder> user_metrics_recorder_;
   scoped_ptr< ::wm::NestedAcceleratorController> nested_accelerator_controller_;
   scoped_ptr<AcceleratorController> accelerator_controller_;
+  scoped_ptr<AshMenuEventFilterDelegate> menu_event_filter_delegate_;
   scoped_ptr<ShellDelegate> delegate_;
   scoped_ptr<SystemTrayDelegate> system_tray_delegate_;
   scoped_ptr<SystemTrayNotifier> system_tray_notifier_;