[gtk+] GtkImage: Add cairo surface api to the docs

[Matthias Clasen <matthiasc src gnome org>]

commit d49d592316edb6ebec0972664003a11fd28fedd0
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jul 7 22:36:56 2014 -0400

    GtkImage: Add cairo surface api to the docs
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732861

 docs/reference/gtk/gtk3-sections.txt |    2 ++
 gtk/gtkimage.c                       |    2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtk/gtk3-sections.txt b/docs/reference/gtk/gtk3-sections.txt
index 056e67d..4386ffe 100644
--- a/docs/reference/gtk/gtk3-sections.txt
+++ b/docs/reference/gtk/gtk3-sections.txt
@@ -1923,6 +1923,7 @@ gtk_image_new_from_animation
 gtk_image_new_from_icon_name
 gtk_image_new_from_gicon
 gtk_image_new_from_resource
+gtk_image_new_from_surface
 gtk_image_set_from_file
 gtk_image_set_from_icon_set
 gtk_image_set_from_pixbuf
@@ -1931,6 +1932,7 @@ gtk_image_set_from_animation
 gtk_image_set_from_icon_name
 gtk_image_set_from_gicon
 gtk_image_set_from_resource
+gtk_image_set_from_surface
 gtk_image_clear
 gtk_image_new
 gtk_image_set_pixel_size
diff --git a/gtk/gtkimage.c b/gtk/gtkimage.c
index 4ea326b..bd19cd2 100644
--- a/gtk/gtkimage.c
+++ b/gtk/gtkimage.c
@@ -649,6 +649,8 @@ gtk_image_new_from_pixbuf (GdkPixbuf *pixbuf)
  * #GtkImage will add its own reference rather than adopting yours.
  * 
  * Returns: a new #GtkImage
+ *
+ * Since: 3.10
  **/
 GtkWidget*
 gtk_image_new_from_surface (cairo_surface_t *surface)