This signal was introduced in r54938, but it didn't come with any documentation.
Created attachment 51652 [details]
It would be nice if we had an autotest as well. Maybe the test from r54938 can be reasonably boiled down to a QWebFrame autotest.
Comment on attachment 51652 [details]
Clearing flags on attachment: 51652
Committed r56577: <http://trac.webkit.org/changeset/56577>
All reviewed patches have been landed. Closing bug.