This hasn't been noticed by the bots because the test is already skipped (see bug #82868). The thing is that something has changed and now when webkit_web_view_reload is used, the icon resource is not loaded because it's in the cache. It's related to bug #78510. We could simply use webkit_web_view_reload_bypass_cache() to make sure resources are not loaded from the cache.
Created attachment 141150 [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 r116654: <http://trac.webkit.org/changeset/116654>