ServiceWorker: Fix messed registration attributes on ServiceWorkerGlobalScope

third_party/WebKit/LayoutTests/http/tests/serviceworker/ServiceWorkerGlobalScope/resources/registration-attribute-worker.js

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/ServiceWorkerGlobalScope/resources/registration-attribute-worker.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/ServiceWorkerGlobalScope/resources/registration-attribute-worker.js b/third_party/WebKit/LayoutTests/http/tests/serviceworker/ServiceWorkerGlobalScope/resources/registration-attribute-worker.js
index 38651374fac8be8c4be4ac7d963f1a5e7dd0dca6..1f64b56ad5c9633507f913f70f484f3e1b9c8a22 100644
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/ServiceWorkerGlobalScope/resources/registration-attribute-worker.js
+++ b/third_party/WebKit/LayoutTests/http/tests/serviceworker/ServiceWorkerGlobalScope/resources/registration-attribute-worker.js
@@ -1,8 +1,15 @@
 importScripts('../../resources/test-helpers.js');
 importScripts('../../resources/worker-testharness.js');
 
+// TODO(nhiroki): stop using global states because service workers can be killed
+// at any point. Instead, we could post a message to the page on each event via
+// Client object (http://crbug.com/558244).
 var events_seen = [];
 
+// TODO(nhiroki): Move these assertions to registration-attribute.html because
+// an assertion failure on the worker is not shown on the result page and
+// handled as timeout. See registration-attribute-newer-worker.js for example.
+
 assert_equals(
   self.registration.scope,
   normalizeURL('scope/registration-attribute'),