ServiceWorker: Enable ServiceWorkerRegistration and update layout tests

LayoutTests/http/tests/serviceworker/serviceworkerglobalscope-scope.html

Index: LayoutTests/http/tests/serviceworker/serviceworkerglobalscope-scope.html
diff --git a/LayoutTests/http/tests/serviceworker/serviceworkerglobalscope-scope.html b/LayoutTests/http/tests/serviceworker/serviceworkerglobalscope-scope.html
index 397e2f52d0236b5d0bafa2613a98973b90b5ad03..f2d9f1fab5129555d414b3b5e4b9b49846f05978 100644
--- a/LayoutTests/http/tests/serviceworker/serviceworkerglobalscope-scope.html
+++ b/LayoutTests/http/tests/serviceworker/serviceworkerglobalscope-scope.html
@@ -4,32 +4,51 @@
 <script src="../resources/testharnessreport.js"></script>
 <script src="resources/test-helpers.js"></script>
 <script>
-
 function scope_test(name, scope) {
-    var t = async_test('Verify the scope property: ' + name);
-
-    t.step(function() {
-        var expectedScope, options;
-        if (scope) {
-            expectedScope = new URL(scope, document.location).toString();
-        } else {
-            expectedScope = new URL('/', document.location).toString();
-        }
+  var t = async_test('Verify the scope property: ' + name);
+  t.step(function() {
+      var expectedScope, options;
+      if (scope) {
+        expectedScope = new URL(scope, document.location).toString();
+      } else {
+        expectedScope = new URL('/', document.location).toString();
+      }
 
-        service_worker_unregister_and_register(
-            t, 'resources/serviceworkerglobalscope-scope-worker.js', scope
-        ).then(
-            t.step_func(function(worker) {
+      var registration;
+      service_worker_unregister_and_register(
+          t, 'resources/serviceworkerglobalscope-scope-worker.js', scope)
+        .then(function(r) {
+            registration = r;
+            assert_equals(registration.waiting, null,
+                          'registration.waiting should be null');
+            assert_equals(registration.active, null,
+                          'registration.active should be null');
+            assert_equals(registration.installing, null,
+                          'registration.installing should be null');
+            return wait_for_update(t, registration);
+          })
+        .then(function(worker) {
+            assert_equals(registration.waiting, null,
+                          'registration.waiting should be null');
+            assert_equals(registration.active, null,
+                          'registration.active should be null');
+            assert_equals(registration.installing, worker,
+                          'registration.installing should not be null');
+            return new Promise(function(resolve) {
                 var messageChannel = new MessageChannel();
-                messageChannel.port1.onmessage = t.step_func(function(e) {
-                    message = e.data;
-                    assert_equals(message.initialScope, expectedScope, 'Worker should see the scope on eval.');
-                    assert_equals(message.currentScope, expectedScope, 'Worker scope should not change.');
-                    service_worker_unregister_and_done(t, scope);
-                });
+                messageChannel.port1.onmessage = resolve;
                 worker.postMessage('', [messageChannel.port2]);
-            })
-        );
+              });
+          })
+        .then(function(e) {
+            var message = e.data;
+            assert_equals(message.initialScope, expectedScope,
+                          'Worker should see the scope on eval.');
+            assert_equals(message.currentScope, expectedScope,
+                          'Worker scope should not change.');
+            service_worker_unregister_and_done(t, scope);
+          })
+        .catch(unreached_rejection(t));
     });
 }