Introduce Origin-Trial for Service Worker Navigation Preload

third_party/WebKit/LayoutTests/http/tests/serviceworker/chromium/resources/navigation-preload-origin-trial-interfaces-worker.php

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/chromium/resources/navigation-preload-origin-trial-interfaces-worker.php
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/chromium/resources/navigation-preload-origin-trial-interfaces-worker.php b/third_party/WebKit/LayoutTests/http/tests/serviceworker/chromium/resources/navigation-preload-origin-trial-interfaces-worker.php
new file mode 100644
index 0000000000000000000000000000000000000000..6b8032d747e1cfb4d0b03945c4067515dc4c409e
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/serviceworker/chromium/resources/navigation-preload-origin-trial-interfaces-worker.php
@@ -0,0 +1,17 @@
+<?php
+if (isset($_GET["origintrial"])) {
+  // generate_token.py  http://127.0.0.1:8000 ServiceWorkerNavigationPreload -expire-timestamp=2000000000
+  header("Origin-Trial: AsAA4dg2Rm+GSgnpyxxnpVk1Bk8CcE+qVBTDpPbIFNscyNRJOdqw1l0vkC4dtsGm1tmP4ZDAKwycQDzsc9xr7gMAAABmeyJvcmlnaW4iOiAiaHR0cDovLzEyNy4wLjAuMTo4MDAwIiwgImZlYXR1cmUiOiAiU2VydmljZVdvcmtlck5hdmlnYXRpb25QcmVsb2FkIiwgImV4cGlyeSI6IDIwMDAwMDAwMDB9");
+}
+header('Content-Type: application/javascript');
+?>
+importScripts('./get-interface-names.js');
+
+self.addEventListener('message', event => {
+    event.source.postMessage(
+        get_interface_names(
+            this,
+            ['NavigationPreloadManager',
+             'FetchEvent',
+             'ServiceWorkerRegistration']));
+  });