Drop outstanding cairo surfaces when window is made native

Any old cairo_surface referencing the old impl window will be wrong
when we make a window native, so drop it.

This fixes bug #599511

diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index b05d5fa19d032a45d3a0fffe71bab5a8bd17bb8f..4510ddd47e9b5a9206916ed22373bc778ba8f451 100644 (file)
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -1851,6 +1851,8 @@ gdk_window_ensure_native (GdkWindow *window)
   if (impl_window->input_window)
     disabled_extension_events = temporary_disable_extension_events (private);
 
+  gdk_window_drop_cairo_surface (private);
+
   screen = gdk_drawable_get_screen (window);
   visual = gdk_drawable_get_visual (window);