Upstream service wrkr "respond with" tests to WPT

third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/fetch-event-respond-with-readable-stream.https.html

Index: third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/fetch-event-respond-with-readable-stream.https.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/respond-with-readable-stream.html b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/fetch-event-respond-with-readable-stream.https.html
similarity index 67%
rename from third_party/WebKit/LayoutTests/http/tests/serviceworker/respond-with-readable-stream.html
rename to third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/fetch-event-respond-with-readable-stream.https.html
index 19a83c78ea6d863eac25f41e546960db36c86491..05afb6bc0fe11e9ebcf6c464c17ea1089f0dc846 100644
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/respond-with-readable-stream.html
+++ b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/fetch-event-respond-with-readable-stream.https.html
@@ -3,16 +3,17 @@
 <title>respondWith with a response built from a ReadableStream</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
-<script src="resources/test-helpers.js"></script>
+<script src="resources/test-helpers.sub.js"></script>
 <script>
+'use strict';
+
 const WORKER =
-  'resources/respond-with-readable-stream-worker.js';
+  'resources/fetch-event-respond-with-readable-stream-worker.js';
 const SCOPE =
-  'resources/respond-with-readable-stream-iframe.html';
-var resolve_done;
-var done_was_called = new Promise(resolve => resolve_done = resolve);
+  'resources/fetch-event-respond-with-readable-stream-iframe.html';
 // Called by the iframe when done.
-function done(result) { resolve_done(result); }
+var done;
+var done_was_called = new Promise(resolve => done = resolve);
 
 promise_test(t => {
     return service_worker_unregister_and_register(t, WORKER, SCOPE)
@@ -21,6 +22,9 @@ promise_test(t => {
            return wait_for_state(t, reg.installing, 'activated');
          })
       .then(() => with_iframe(SCOPE))
+      .then(iframe => {
+          t.add_cleanup(() => iframe.remove())
+        })
       .then(() => done_was_called)
       .then(result => assert_equals(result, 'PASS'));
   }, 'Respond with a Response built from a ReadableStream');