There is currently no way for the browser to deliver a Web Intent to a specific frame once the an intent has been dispatched and once it has been matched to a particular service.
Created attachment 147530 [details]
Created attachment 147759 [details]
Rebase on master.
Comment on attachment 147759 [details]
Clearing flags on attachment: 147759
Committed r120831: <http://trac.webkit.org/changeset/120831>
All reviewed patches have been landed. Closing bug.