[metacity] libmetacity: add comment to MetaFrameBorders struct

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 617b9a072dc18b3bde634af96de65666187a7daf
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Jun 9 19:46:05 2016 +0300

    libmetacity: add comment to MetaFrameBorders struct

 libmetacity/meta-frame-borders.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/libmetacity/meta-frame-borders.h b/libmetacity/meta-frame-borders.h
index 599ceb7..baf8417 100644
--- a/libmetacity/meta-frame-borders.h
+++ b/libmetacity/meta-frame-borders.h
@@ -23,6 +23,14 @@
 
 G_BEGIN_DECLS
 
+/**
+ * MetaFrameBorders:
+ * @visible: Visible border
+ * @shadow: Extra size needed for box-shadow (GTK+ theme only)
+ * @resize: Extra size used for resize cursor area
+ * @invisible: Extra size around visible border (max of resize and shadow)
+ * @total: Sum of visible and invisible borders
+ */
 typedef struct
 {
   GtkBorder visible;