Upstream service worker opaque-response-preloaded.https.html test to WPT

third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/opaque-response-preloaded-iframe.html

Index: third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/opaque-response-preloaded-iframe.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/opaque-response-in-memorycache-iframe.html b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/opaque-response-preloaded-iframe.html
similarity index 81%
rename from third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/opaque-response-in-memorycache-iframe.html
rename to third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/opaque-response-preloaded-iframe.html
index 5214b91d66ee189ba35c69c5d11b804dd0d6042a..9c0eed1d720dc3e05263f789f45f5ebe7eaa70f9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/opaque-response-in-memorycache-iframe.html
+++ b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/opaque-response-preloaded-iframe.html
@@ -4,6 +4,8 @@
 <script>
 function runTest() {
   var l = document.createElement('link');
+  // Use link rel=preload to try to get the browser to cache the opaque
+  // response.
   l.setAttribute('rel', 'preload');
   l.setAttribute('href', 'opaque-response');
   l.onload = function() {
@@ -12,8 +14,8 @@ function runTest() {
     xhr.open('GET', 'opaque-response');
     // opaque-response returns an opaque response from serviceworker and thus
     // the XHR must fail because it is not no-cors request.
-    // Particularly, the XHR must not reuse preloaded the opaque response on
-    // MemoryCache.
+    // Particularly, the XHR must not reuse the opaque response from the
+    // preload request.
     xhr.onerror = function() {
       parent.done('PASS');
     };