No more pixel junk when resizing windows that

use the wxNO_FULL_REPAINT_ON_RESIZE flag
    and which have a border.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14695 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/univ/window.h

@@ -265,6 +265,9 @@ protected:
     wxBitmap  m_bitmapBg;
     int       m_alignBgBitmap;
     wxStretch m_stretchBgBitmap;
+    
+    // old size
+    wxSize m_oldSize;
 
     // is the mouse currently inside the window?
     bool m_isCurrent:1;