Remove the isProgrammaticScroll argument to requestScroll() because no-one uses it
Created attachment 366691 [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
https://trac.webkit.org/r243847
<rdar://problem/49588811>