[gtk] builder: Add profiler marks for parsing

[Matthias Clasen <matthiasc src gnome org>]

commit cb60c1b83d6c79244a64de84bbc4789c71b67861
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jan 29 15:49:56 2020 +0100

    builder: Add profiler marks for parsing
    
    This is useful to understand what ui files take
    long to load.

 gtk/gtkbuilderparser.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/gtk/gtkbuilderparser.c b/gtk/gtkbuilderparser.c
index ff38c49405..7b781c17d1 100644
--- a/gtk/gtkbuilderparser.c
+++ b/gtk/gtkbuilderparser.c
@@ -26,6 +26,7 @@
 #include "gtkintl.h"
 #include "gtktypebuiltins.h"
 #include "gtkversion.h"
+#include "gdkprofilerprivate.h"
 
 #include <gio/gio.h>
 #include <string.h>
@@ -1548,6 +1549,7 @@ _gtk_builder_parser_parse_buffer (GtkBuilder   *builder,
   const gchar* domain;
   ParserData data;
   GSList *l;
+  gint64 before = g_get_monotonic_time ();
 
   /* Store the original domain so that interface domain attribute can be
    * applied for the builder and the original domain can be restored after
@@ -1622,4 +1624,6 @@ _gtk_builder_parser_parse_buffer (GtkBuilder   *builder,
 
   /* restore the original domain */
   gtk_builder_set_translation_domain (builder, domain);
+
+  gdk_profiler_add_mark (before * 1000, (g_get_monotonic_time () - before) * 1000, "builder load", filename);
 }