[gtk+] Add gtk_test_widget_wait_for_draw to docs

[Matthias Clasen <matthiasc src gnome org>]

commit 540c665117264e55bff61329b66369dc1fd5c8aa
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 27 14:49:43 2013 -0400

    Add gtk_test_widget_wait_for_draw to docs

 docs/reference/gtk/gtk3-sections.txt |    1 +
 gtk/gtktestutils.c                   |    2 ++
 2 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtk/gtk3-sections.txt b/docs/reference/gtk/gtk3-sections.txt
index 0e16c95..a4db1d7 100644
--- a/docs/reference/gtk/gtk3-sections.txt
+++ b/docs/reference/gtk/gtk3-sections.txt
@@ -7142,6 +7142,7 @@ gtk_test_text_get
 gtk_test_text_set
 gtk_test_widget_click
 gtk_test_widget_send_key
+gtk_test_widget_wait_for_draw
 </SECTION>
 
 <SECTION>
diff --git a/gtk/gtktestutils.c b/gtk/gtktestutils.c
index 0b3831d..205f728 100644
--- a/gtk/gtktestutils.c
+++ b/gtk/gtktestutils.c
@@ -137,6 +137,8 @@ quit_main_loop_callback (GtkWidget     *widget,
  * This function is intended to be used for syncing with actions that
  * depend on @widget relayouting or on interaction with the display
  * server.
+ *
+ * Since: 3.10
  **/
 void
 gtk_test_widget_wait_for_draw (GtkWidget *widget)