[gnome-subtitles/gtk3] Bugfixing

[Pedro Daniel da Rocha Melo e Castro <pcastro src gnome org>]

commit 9af51d78f8f75f7f41e71d2bfbc7696978fa245a
Author: Pedro Castro <pedro gnomesubtitles org>
Date:   Sun May 6 10:31:48 2018 +0100

    Bugfixing

 src/GnomeSubtitles/Dialog/VideoOpenDialog.cs |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/src/GnomeSubtitles/Dialog/VideoOpenDialog.cs b/src/GnomeSubtitles/Dialog/VideoOpenDialog.cs
index 5169e77..53025f3 100644
--- a/src/GnomeSubtitles/Dialog/VideoOpenDialog.cs
+++ b/src/GnomeSubtitles/Dialog/VideoOpenDialog.cs
@@ -51,13 +51,12 @@ public class VideoOpenDialog : BaseDialog {
                        
dialog.SetCurrentFolder(Environment.GetFolderPath(Environment.SpecialFolder.Personal));
                }
 
-               SetFilters();
+               SetFilters(dialog);
 
                return dialog;
        }
 
-       private void SetFilters () {
-               FileChooserDialog dialog = Dialog as FileChooserDialog;
+       private void SetFilters (FileChooserDialog dialog) {
 
                /* Video files */
                FileFilter videoFilesFilter = new FileFilter();