This change adds the appropriate prototypes so that the object passed to
the 'crossoriginconnect' event handler has a 'client' field that
contains a proper CrossOriginServiceWorkerClient object to match the spec.
This client object is not yet set as the source for 'crossoriginmessage'
events.
This change adds the appropriate prototypes so that the object passed to the 'crossoriginconnect' event handler has a 'client' field that contains a proper CrossOriginServiceWorkerClient object to match the spec.
This client object is not yet set as the source for 'crossoriginmessage' events.