Remove hard-coded origins in layout tests.

LayoutTests/http/tests/serviceworker/chromium/service-worker-allowed.html

Index: LayoutTests/http/tests/serviceworker/chromium/service-worker-allowed.html
diff --git a/LayoutTests/http/tests/serviceworker/chromium/service-worker-allowed.html b/LayoutTests/http/tests/serviceworker/chromium/service-worker-allowed.html
index 25dda4af0daf22eb3ea5d40e9c849eaee4edcff1..1ab415256ed115ae40451091895f5ac141382a2e 100644
--- a/LayoutTests/http/tests/serviceworker/chromium/service-worker-allowed.html
+++ b/LayoutTests/http/tests/serviceworker/chromium/service-worker-allowed.html
@@ -6,9 +6,12 @@
 <script src="../../resources/testharness.js"></script>
 <script src="../../resources/testharness-helpers.js"></script>
 <script src="../../resources/testharnessreport.js"></script>
+<script src="../../resources/get-host-info.js"></script>
 <script src="../resources/test-helpers.js"></script>
 <script>
 
+var host_info = get_host_info();
+
 promise_test(function(t) {
     var script = 'resources/service-worker-allowed-worker.php' +
       '?ServiceWorkerAllowed=/allowed-path';
@@ -66,9 +69,11 @@ promise_test(function(t) {
   }, 'Registering outside Service-Worker-Allowed path with parent reference');
 
 promise_test(function(t) {
-    var script = 'https://localhost:8443/serviceworker/chromium/resources/' +
+    var script = host_info.HTTPS_REMOTE_ORIGIN +
+      '/serviceworker/chromium/resources/' +
       'service-worker-allowed-worker.php' +
-      '?ServiceWorkerAllowed=http://localhost:8000/cross-origin/';
+      '?ServiceWorkerAllowed=' +
+      host_info.HTTP_REMOTE_ORIGIN + '/cross-origin/';
     var scope = '/cross-origin/';
     return assert_promise_rejects(
         navigator.serviceWorker.register(script, {scope: scope}),