--- /wxWidgets/trunk/include/wx/gtk/toplevel.h (revision 65373)
+++ /wxWidgets/trunk/include/wx/gtk/toplevel.h (revision 67496)
@@ -114,4 +114,6 @@
     // wxUSER_ATTENTION_ERROR difference, -2 for no hint, -1 for ERROR hint, rest for GtkTimeout handle.
     int m_urgency_hint;
+    // timer for detecting WM with broken _NET_REQUEST_FRAME_EXTENTS handling
+    unsigned m_netFrameExtentsTimerId;
 
     // return the size of the window without WM decorations