[gtk+/gtk-3-20] window: Unfreeze window on unmap

[Matthias Clasen <matthiasc src gnome org>]

commit c51e97c15ecbcc693a9d7c084ab97314b1e03784
Author: Benjamin Otte <otte redhat com>
Date:   Wed May 25 01:16:52 2016 +0200

    window: Unfreeze window on unmap
    
    Make sure to keep parity with the number of times we froze the window
    when we unmap it.
    Otherwise it will permanently stay frozen after being remapped.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=766643
    https://bugzilla.mozilla.org/show_bug.cgi?id=1225044

 gtk/gtkwindow.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 6eac456..ee91ec8 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -6350,7 +6350,11 @@ gtk_window_unmap (GtkWidget *widget)
   gtk_widget_set_mapped (widget, FALSE);
   gdk_window_withdraw (gdk_window);
 
-  priv->configure_request_count = 0;
+  while (priv->configure_request_count > 0)
+    {
+      priv->configure_request_count--;
+      GDK_PRIVATE_CALL (gdk_window_thaw_toplevel_updates) (_gtk_widget_get_window (widget));
+    }
   priv->configure_notify_received = FALSE;
 
   /* on unmap, we reset the default positioning of the window,