[Background Sync] Align exposed API with spec

third_party/WebKit/LayoutTests/http/tests/background_sync/oneshot.html

Index: third_party/WebKit/LayoutTests/http/tests/background_sync/oneshot.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/background_sync/oneshot.html b/third_party/WebKit/LayoutTests/http/tests/background_sync/oneshot.html
index 87663fa605934e6ff869de26d4fa917abeda20db..877732c29f6945c1dbee07737d5c1eb8f6372ac2 100644
--- a/third_party/WebKit/LayoutTests/http/tests/background_sync/oneshot.html
+++ b/third_party/WebKit/LayoutTests/http/tests/background_sync/oneshot.html
@@ -6,7 +6,6 @@
 <script src="../resources/testharness-helpers.js"></script>
 <script src="../resources/testharnessreport.js"></script>
 <script src="../serviceworker/resources/test-helpers.js"></script>
-<script src="resources/test-helpers.js"></script>
 <script>
 
 promise_test(function(t) {
@@ -31,21 +30,14 @@ promise_test(function(t) {
       })
     .then(function(sw_registration_frame) {
         sync_manager = sw_registration_frame.sync;
-        return clear_registered_syncs(sync_manager);
+        return sync_manager.getTags();
       })
-    .then(function() { return sync_manager.getRegistrations(); })
-    .then(function(registrations) {
-        assert_equals(registrations.length, 0, 'One-shot syncs should be ' +
+    .then(function(tags) {
+        assert_equals(tags.length, 0, 'One-shot syncs should be ' +
                       'cleared at the start of the test.');
-        return sync_manager.register({tag: 'abcde'});
+        return sync_manager.register('abcde');
       })
-    .then(function(registration) {
-        sync_registration = registration;
-        assert_class_string(sync_registration, 'SyncRegistration', 'One-' +
-                            'shot sync registrations should have the correct ' +
-                            'class name.');
-        assert_equals('abcde', registration.tag, 'Sync registration tag ' +
-                      'returned should match the tag registered.');
+    .then(function() {
         return service_worker_unregister(t, scope);
       });
   }, 'Background Sync API should allow one-shot syncs to be registered from ' +
@@ -65,23 +57,15 @@ promise_test(function(t) {
         sync_manager = sw_registration.sync;
         return wait_for_state(t, sw_registration.installing, 'activated');
       })
-    .then(function() { return clear_registered_syncs(sync_manager); })
-    .then(function() { return sync_manager.getRegistrations(); })
-    .then(function(registrations) {
-        assert_equals(registrations.length, 0, 'One-shot syncs should be ' +
+    .then(function() { return sync_manager.getTags(); })
+    .then(function(tags) {
+        assert_equals(tags.length, 0, 'One-shot syncs should be ' +
                       'cleared at the start of the test.');
-        return sync_manager.register({tag: 'abcde'});
+        return sync_manager.register('abcde');
       })
-    .then(function(registration) {
-        sync_registration = registration;
-        assert_class_string(sync_registration, 'SyncRegistration', 'One-' +
-                            'shot sync registrations should have the correct ' +
-                            'class name.');
-        assert_equals('abcde', registration.tag, 'Sync registration tag ' +
-                      'returned should match the tag registered.');
+    .then(function() {
         return service_worker_unregister(t, scope);
       })
-    .then(function() { return service_worker_unregister(t, scope); })
   }, 'Background Sync API should allow one-shot syncs to be registered ' +
      'with window clients not currently controlled by service worker');
 </script>