Fix the mime sniffing test

svn path=/trunk/; revision=21038

ChangeLog

+2008-08-07  Matthias Clasen  <mclasen@redhat.com>
+
+	* configure.in: Its g_content_type_from_mime_type, not 
+	g_content_type_for_mime_type. Noticed by Roger Brown
+
 2008-08-07 16:19:16  Tim Janik  <timj@imendio.com>
 
 	* gdk/gdkrgb.c (gdk_rgb_select_conv): use g_error() instead of a

configure.in

@@ -1052,7 +1052,7 @@ if test x$gio_can_sniff = x; then
     char *content_type;
     char *image_png;
     content_type = g_content_type_guess (NULL, data, data_size, NULL);  
-    image_png = g_content_type_for_mime_type ("image/png");
+    image_png = g_content_type_from_mime_type ("image/png");
     return !!strcmp (content_type, image_png);
   }]])],
     [gio_can_sniff=yes