Upstream foreign fetch tests.

third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/foreign-fetch-cors-worker.js

Index: third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/foreign-fetch-cors-worker.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/foreign-fetch-cors-worker.js b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/foreign-fetch-cors-worker.js
similarity index 83%
rename from third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/foreign-fetch-cors-worker.js
rename to third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/foreign-fetch-cors-worker.js
index 1b819ceed2a09fb046f14968a6b080f55e749a6d..36c7b9de52d7ff8deaa1ff562488261a837d801c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/foreign-fetch-cors-worker.js
+++ b/third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/foreign-fetch-cors-worker.js
@@ -1,4 +1,4 @@
-importScripts('../../resources/get-host-info.js');
+importScripts('get-host-info.sub.js');
 var host_info = get_host_info();
 
 self.addEventListener('install', function(event) {
@@ -9,10 +9,10 @@ self.addEventListener('foreignfetch', function(event) {
     var response = JSON.parse(decodeURIComponent(location.search.substring(1)));
     var url = new URL(event.request.url);
     var params = JSON.parse(decodeURIComponent(url.search.substring(1)));
-    var url_to_fetch = 'fetch-access-control.php?';
+    var url_to_fetch = 'fetch-access-control.py?';
     if (params.cross_origin) {
       url_to_fetch =
-          host_info.HTTPS_ORIGIN + '/serviceworker/resources/' + url_to_fetch;
+          host_info.HTTPS_ORIGIN + new URL('./', location).pathname + url_to_fetch;
     }
     if (params.with_aceheaders)
       url_to_fetch += 'ACEHeaders=X-ServiceWorker-ServerHeader&';