Setting the touch wrench menu as default menu for ChromeOS

ui/base/models/simple_menu_model.h

Index: ui/base/models/simple_menu_model.h
diff --git a/ui/base/models/simple_menu_model.h b/ui/base/models/simple_menu_model.h
index 126d44bc4b6d84f25ef4fe0b487e933477ea2c86..06ca3d3504f16a7ca2ec223c01541fde7ce99e53 100644
--- a/ui/base/models/simple_menu_model.h
+++ b/ui/base/models/simple_menu_model.h
@@ -74,7 +74,7 @@ class UI_EXPORT SimpleMenuModel : public MenuModel {
   // Methods for adding items to the model.
   void AddItem(int command_id, const string16& label);
   void AddItemWithStringId(int command_id, int string_id);
-  void AddSeparator();
+  void AddSeparator(const string16& separator_type);
   void AddCheckItem(int command_id, const string16& label);
   void AddCheckItemWithStringId(int command_id, int string_id);
   void AddRadioItem(int command_id, const string16& label, int group_id);
@@ -89,7 +89,7 @@ class UI_EXPORT SimpleMenuModel : public MenuModel {
   // Methods for inserting items into the model.
   void InsertItemAt(int index, int command_id, const string16& label);
   void InsertItemWithStringIdAt(int index, int command_id, int string_id);
-  void InsertSeparatorAt(int index);
+  void InsertSeparatorAt(int index, const string16& separator_type);
   void InsertCheckItemAt(int index, int command_id, const string16& label);
   void InsertCheckItemWithStringIdAt(int index, int command_id, int string_id);
   void InsertRadioItemAt(