It seems I forgot to add the new section in the docs.sgml file
Created attachment 211976 [details] Patch
Thanks for the patch. If this patch contains new public API please make sure it follows the guidelines for new WebKit2 GTK+ API. See http://trac.webkit.org/wiki/WebKitGTK/AddingNewWebKit2API
Committed r156028: <http://trac.webkit.org/changeset/156028>