Rename fetch layout tests.

LayoutTests/http/tests/fetch/resources/thorough-worker.js

Index: LayoutTests/http/tests/fetch/resources/thorough-worker.js
diff --git a/LayoutTests/http/tests/fetch/resources/fetch-access-control-worker.js b/LayoutTests/http/tests/fetch/resources/thorough-worker.js
similarity index 89%
rename from LayoutTests/http/tests/fetch/resources/fetch-access-control-worker.js
rename to LayoutTests/http/tests/fetch/resources/thorough-worker.js
index b7be2810deebce36b8b215123c60781c5f91f251..8a4a3872b325541f21c98cf19f6d5bc12599c388 100644
--- a/LayoutTests/http/tests/fetch/resources/fetch-access-control-worker.js
+++ b/LayoutTests/http/tests/fetch/resources/thorough-worker.js
@@ -1,5 +1,5 @@
 importScripts('fetch-test-options.js');
-importScripts('fetch-access-control-util.js');
+importScripts('thorough-util.js');
 
 var port = undefined;
 var isTestTargetFetch = false;
@@ -27,7 +27,7 @@ self.addEventListener('fetch', function(event) {
         .then(function(message) {
             var response = message.response;
             message.response = undefined;
-            // Send the result to fetch-access-control-util.js.
+            // Send the result to thorough-control-util.js.
             port.postMessage(message);
             return response;
           })