ServiceWorker: Call SyncMatchingRegistration when document_url is changed

third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/update-claim-worker.php

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/update-claim-worker.php
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/update-claim-worker.php b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/update-claim-worker.php
new file mode 100644
index 0000000000000000000000000000000000000000..bd75fc1345f8499cedbae120976eeeb3513885c6
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/update-claim-worker.php
@@ -0,0 +1,21 @@
+<?php
+header("Cache-Control: no-cache, must-revalidate");
+header("Pragma: no-cache");
+header('Content-Type:application/javascript');
+
+echo '// ', microtime();
+?>
+
+// This no-op fetch handler is necessary to bypass explicitly the no fetch
+// handler optimization by which this service worker script can be skipped.
+addEventListener('fetch', event => {
+    return;
+  });
+
+addEventListener('install', event => {
+    event.waitUntil(self.skipWaiting());
+  });
+
+addEventListener('activate', event => {
+    event.waitUntil(self.clients.claim());
+  });