[gtk/matthiasc/for-master: 12/17] gtk-demo: Add a missing source file

[Matthias Clasen <matthiasc src gnome org>]

commit 74899599a6816d868480cf5228f59ce8fb844abf
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jun 17 13:48:40 2020 -0400

    gtk-demo: Add a missing source file

 demos/gtk-demo/demo.gresource.xml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/demos/gtk-demo/demo.gresource.xml b/demos/gtk-demo/demo.gresource.xml
index 400ecbf208..a1500f0b80 100644
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -296,6 +296,7 @@
   </gresource>
   <gresource prefix="/transparent">
     <file>portland-rose.jpg</file>
+    <file>bluroverlay.h</file>
     <file>bluroverlay.c</file>
   </gresource>
   <gresource prefix="/markup">