[sysprof] capture: update stats for marks

[Christian Hergert <chergert src gnome org>]

commit c6260ad1774057568f6215053db15f31a96c7697
Author: Christian Hergert <chergert redhat com>
Date:   Mon May 14 17:51:51 2018 +0100

    capture: update stats for marks

 lib/capture/sp-capture-writer.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/lib/capture/sp-capture-writer.c b/lib/capture/sp-capture-writer.c
index c9097bb..893b712 100644
--- a/lib/capture/sp-capture-writer.c
+++ b/lib/capture/sp-capture-writer.c
@@ -572,6 +572,8 @@ sp_capture_writer_add_mark (SpCaptureWriter *self,
   memcpy (ev->name, name, sizeof ev->name);
   memcpy (ev->message, message, message_len);
 
+  self->stat.frame_count[SP_CAPTURE_FRAME_MARK]++;
+
   return TRUE;
 }