Update navigator.services API to use the new services.onconnect event [1/3].

LayoutTests/http/tests/navigatorconnect/resources/reply-client-info-worker.js

 var client;
 self.addEventListener('crossoriginconnect', function(event) {
   client = event.client;
   event.acceptConnection(true);
   client.postMessage({origin: client.origin, targetUrl: client.targetUrl});
 });
 
-
 self.addEventListener('crossoriginmessage', function(event) {
   client.postMessage({origin: event.origin});
 });
+
+navigator.services.addEventListener('connect', function(event) {
+  event.respondWith({accept: true, data: {origin: event.origin}})
+    .then(function(port) {
+        client = port;
+        client.postMessage({origin: event.origin, targetUrl: event.targetURL});
+      });
+});