[metacity] libmetacity: don't draw titlebar in fullscreen

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 45fe7729128c19531d7ce4748b8c6e51a9f1f299
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Feb 15 22:40:24 2016 +0200

    libmetacity: don't draw titlebar in fullscreen

 libmetacity/meta-theme-gtk.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/libmetacity/meta-theme-gtk.c b/libmetacity/meta-theme-gtk.c
index 25cb9ed..86714d8 100644
--- a/libmetacity/meta-theme-gtk.c
+++ b/libmetacity/meta-theme-gtk.c
@@ -866,6 +866,9 @@ meta_theme_gtk_draw_frame (MetaThemeImpl           *impl,
                     visible_rect.x, visible_rect.y,
                     visible_rect.width, visible_rect.height);
 
+  if (flags & META_FRAME_FULLSCREEN)
+    return;
+
   titlebar_rect.x = visible_rect.x + borders->visible.left;
   titlebar_rect.y = visible_rect.y + style->layout->gtk.frame_border.top;
   titlebar_rect.width = visible_rect.width - borders->visible.left - borders->visible.right;