Upstream service worker `fetch` test to WPT

third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-fallback-worker.js

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-fallback-worker.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-fallback-worker.js b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-fallback-worker.js
deleted file mode 100644
index aeb63eab8c70db6280b40f58e31bb5a3f7e7f263..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/fetch-request-fallback-worker.js
+++ /dev/null
@@ -1,15 +0,0 @@
-// TODO(horo): Service worker can be killed at some point during the test. So we
-// should use storage API instead of this global variable.
-var requests = [];
-
-self.addEventListener('message', function(event) {
-    event.data.port.postMessage({requests: requests});
-    requests = [];
-  });
-
-self.addEventListener('fetch', function(event) {
-    requests.push({
-        url: event.request.url,
-        mode: event.request.mode
-      });
-  });