respect minimal wxTLW size in wxUniv

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14113 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/univ/frame.h

@@ -61,6 +61,9 @@ public:
     virtual void PositionToolBar();
 #endif // wxUSE_TOOLBAR
 
+    virtual int GetMinWidth() const;
+    virtual int GetMinHeight() const;
+
 protected:
     void OnSize(wxSizeEvent& event);