[gtkmm] Gtk::AppChooserDialog, FontChooserDialog: Add _UNMANAGEABLE

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 654ca7fff766a46b7a426f301a8506e77ba35af3
Author: Kjell Ahlstedt <kjell ahlstedt bredband net>
Date:   Wed Jun 22 17:20:25 2016 +0200

    Gtk::AppChooserDialog, FontChooserDialog: Add _UNMANAGEABLE
    
    Add _UNMANAGEABLE to top-level windows that lack it.
    https://mail.gnome.org/archives/gtkmm-list/2016-June/msg00017.html

 gtk/src/appchooserdialog.hg  |    1 +
 gtk/src/fontchooserdialog.hg |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/src/appchooserdialog.hg b/gtk/src/appchooserdialog.hg
index 0452e24..6079978 100644
--- a/gtk/src/appchooserdialog.hg
+++ b/gtk/src/appchooserdialog.hg
@@ -51,6 +51,7 @@ class AppChooserDialog
 {
   _CLASS_GTKOBJECT(AppChooserDialog, GtkAppChooserDialog, GTK_APP_CHOOSER_DIALOG, Dialog, GtkDialog)
   _IMPLEMENTS_INTERFACE(AppChooser)
+  _UNMANAGEABLE
 public:
 
   explicit AppChooserDialog(const Glib::ustring& content_type);
diff --git a/gtk/src/fontchooserdialog.hg b/gtk/src/fontchooserdialog.hg
index 2e57df1..4b4c824 100644
--- a/gtk/src/fontchooserdialog.hg
+++ b/gtk/src/fontchooserdialog.hg
@@ -44,6 +44,7 @@ class FontChooserDialog
 {
   _CLASS_GTKOBJECT(FontChooserDialog, GtkFontChooserDialog, GTK_FONT_CHOOSER_DIALOG, Gtk::Dialog, GtkDialog)
   _IMPLEMENTS_INTERFACE(FontChooser)
+  _UNMANAGEABLE
 public:
   _CTOR_DEFAULT()
   explicit FontChooserDialog(const Glib::ustring& title);