Import w3c tests for the service workers

third_party/WebKit/LayoutTests/imported/wpt/service-workers/service-worker/resources/fetch-response-xhr-iframe.https.html

Index: third_party/WebKit/LayoutTests/imported/wpt/service-workers/service-worker/resources/fetch-response-xhr-iframe.https.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-response-xhr-iframe.html b/third_party/WebKit/LayoutTests/imported/wpt/service-workers/service-worker/resources/fetch-response-xhr-iframe.https.html
similarity index 73%
copy from third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-response-xhr-iframe.html
copy to third_party/WebKit/LayoutTests/imported/wpt/service-workers/service-worker/resources/fetch-response-xhr-iframe.https.html
index b0aa582a3b98f468126dbec886d494fd9fe76bdf..3391381e38af1cf3ed969fcfa4741a78fb3ab5a7 100644
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-response-xhr-iframe.html
+++ b/third_party/WebKit/LayoutTests/imported/wpt/service-workers/service-worker/resources/fetch-response-xhr-iframe.https.html
@@ -1,6 +1,7 @@
-<script src="../../resources/testharness.js"></script>
-<script src="test-helpers.js"></script>
+<script src="../resources/get-host-info.sub.js"></script>
+<script src="test-helpers.sub.js?pipe=sub"></script>
 <script>
+var host_info = get_host_info();
 
 function xhr_send(method, data) {
   return new Promise(function(resolve, reject) {
@@ -20,7 +21,8 @@ function xhr_send(method, data) {
 function coalesce_headers_test() {
   return xhr_send('POST', 'test string')
   .then(function(xhr) {
-      assert_equals(xhr.getResponseHeader('foo'), 'foo, bar');
+      window.parent.postMessage({results: xhr.getResponseHeader('foo')},
+                                host_info['HTTPS_ORIGIN']);
     });
 }