make access specifiers for the virtual functions match their access in the base class (patch 1400131)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@37393 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/datectlg.cpp

@@ -128,9 +128,8 @@ public:
                 long style = 0,
                 const wxValidator& validator = wxDefaultValidator);
 
-    virtual void DoMoveWindow(int x, int y, int w, int h);
-
 protected:
+    virtual void DoMoveWindow(int x, int y, int w, int h);
 
     void OnSize(wxSizeEvent& event);
     void OnMouseEnter(wxMouseEvent& event);