[gtk+/wip/blur] Update also the function name

[Andrea Cimitan <acimitan src gnome org>]

commit e4c26c8dab80b98db4ae4b039ed47f2a2f768c36
Author: Andrea Cimitan <andrea cimitan canonical com>
Date:   Fri Apr 13 12:20:05 2012 +0200

    Update also the function name

 gtk/gtkcairoblur.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkcairoblur.c b/gtk/gtkcairoblur.c
index 9fca751..b690ed9 100644
--- a/gtk/gtkcairoblur.c
+++ b/gtk/gtkcairoblur.c
@@ -33,8 +33,8 @@
  *
  */
 void
-_gtk_cairo_blur_apply (cairo_surface_t* surface,
-                       guint            radius)
+_gtk_cairo_blur_surface (cairo_surface_t* surface,
+                         guint            radius)
 {
   cairo_format_t format;