Allow printing/saving a plugin through right click menu, even if it's in a fr...

app/menus/simple_menu_model.h

Index: app/menus/simple_menu_model.h
===================================================================
--- app/menus/simple_menu_model.h	(revision 70859)
+++ app/menus/simple_menu_model.h	(working copy)
@@ -48,6 +48,9 @@
     // Performs the action associated with the specified command id.
     virtual void ExecuteCommand(int command_id) = 0;
 
+    // Notifies the delegate that the menu has closed.
+    virtual void MenuClosed();
+
    protected:
     virtual ~Delegate() {}
   };
@@ -115,6 +118,7 @@
   virtual void HighlightChangedTo(int index);
   virtual void ActivatedAt(int index);
   virtual MenuModel* GetSubmenuModelAt(int index) const;
+  virtual void MenuClosed();
 
  protected:
   // Some variants of this model (SystemMenuModel) relies on items to be