Enable keyboard accelerators while a menu is open

ui/views/controls/menu/menu_message_loop_aura.h

Index: ui/views/controls/menu/menu_message_loop_aura.h
diff --git a/ui/views/controls/menu/menu_message_loop_aura.h b/ui/views/controls/menu/menu_message_loop_aura.h
index 80485e945a6525cfc86c191a1592bdd6ff12723a..968aa5f24923675e8ebd9cda4f8da3f462700698 100644
--- a/ui/views/controls/menu/menu_message_loop_aura.h
+++ b/ui/views/controls/menu/menu_message_loop_aura.h
@@ -5,9 +5,13 @@
 #ifndef UI_VIEWS_CONTROLS_MENU_MENU_MESSAGE_LOOP_AURA_H_
 #define UI_VIEWS_CONTROLS_MENU_MENU_MESSAGE_LOOP_AURA_H_
 
+#include <map>
+#include <stack>
+
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
+#include "ui/views/controls/menu/menu_event_filter.h"
 #include "ui/views/controls/menu/menu_message_loop.h"
 
 namespace base {
@@ -40,6 +44,16 @@ class MenuMessageLoopAura : public MenuMessageLoop {
   // WARNING: this may be NULL.
   Widget* owner_;
 
+  scoped_ptr<MenuEventFilter> menu_event_filter_;
+
+  // Maps the IDs of the created nested RunLoops to whether their corresponding
+  // QuitNow() functions have been called or not. This is needed to avoid
+  // calling QuitNow() multiple times while the same Runloop is running until it
+  // actually exits.
+  using RunLoopId = int;
+  std::stack<RunLoopId> run_loop_ids_stack_;
+  std::map<RunLoopId, bool> run_loops_status_;
+
   base::Closure message_loop_quit_;
 
   DISALLOW_COPY_AND_ASSIGN(MenuMessageLoopAura);