[gtk+] Fix up s/gtk_frame_clock/gdk_frame_clock/ in docs

[Alexander Larsson <alexl src gnome org>]

commit c6c33c5cd7a6b5b805f8667a5bca1d4afb7cef04
Author: Alexander Larsson <alexl redhat com>
Date:   Fri Feb 15 14:02:02 2013 +0100

    Fix up s/gtk_frame_clock/gdk_frame_clock/ in docs

 gtk/gtkwidget.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 48f9960..58c6d90 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -4623,9 +4623,9 @@ static guint tick_callback_id;
  * then you will have to call gtk_widget_queue_resize() or
  * gtk_widget_queue_draw_area() yourself.
  *
- * gtk_frame_clock_get_frame_time() should generally be used for timing
+ * gdk_frame_clock_get_frame_time() should generally be used for timing
  * continuous animations and
- * gtk_frame_timings_get_predicted_presentation_time() if you are
+ * gdk_frame_timings_get_predicted_presentation_time() if you are
  * trying to display isolated frames particular times.
  *
  * This is a more convenient alternative to connecting directly to the