Setting the touch wrench menu as default menu for ChromeOS

ui/base/models/menu_model.h

Index: ui/base/models/menu_model.h
diff --git a/ui/base/models/menu_model.h b/ui/base/models/menu_model.h
index a684253ba83adaffdd6a84f61b3f44736078c4bc..fa9428c0f700497a8c840bed16d29e3432b0baab 100644
--- a/ui/base/models/menu_model.h
+++ b/ui/base/models/menu_model.h
@@ -7,6 +7,7 @@
 
 #include "base/string16.h"
 #include "ui/base/models/menu_model_delegate.h"
+#include "ui/base/models/menu_separator_types.h"
 #include "ui/base/ui_export.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/native_widget_types.h"
@@ -57,6 +58,9 @@ class UI_EXPORT MenuModel {
   // Returns the type of item at the specified index.
   virtual ItemType GetTypeAt(int index) const = 0;
 
+  // Returns the separator type at the specified index.
+  virtual ui::MenuSeparatorType GetSeparatorTypeAt(int index) const = 0;
+
   // Returns the command id of the item at the specified index.
   virtual int GetCommandIdAt(int index) const = 0;