make access for virtuals match base

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@49446 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/vlbox.h

@@ -201,9 +201,9 @@ public:
     static wxVisualAttributes
     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
 
+protected:
 	virtual wxBorder GetDefaultBorder() const { return GetDefaultBorderForControl(); }
 
-protected:
     // the derived class must implement this function to actually draw the item
     // with the given index on the provided DC
     virtual void OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const = 0;