script: Move code generation and webidl files to new script_bindings crate. (#35157)

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

components/script_bindings/webidls/ServiceWorker.webidl

@@ -0,0 +1,25 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// https://w3c.github.io/ServiceWorker/#serviceworker-interface
+[Pref="dom_serviceworker_enabled", SecureContext, Exposed=(Window,Worker)]
+interface ServiceWorker : EventTarget {
+  readonly attribute USVString scriptURL;
+  readonly attribute ServiceWorkerState state;
+  [Throws] undefined postMessage(any message, sequence<object> transfer);
+  [Throws] undefined postMessage(any message, optional StructuredSerializeOptions options = {});
+
+  // event
+  attribute EventHandler onstatechange;
+};
+
+ServiceWorker includes AbstractWorker;
+
+enum ServiceWorkerState {
+  "installing",
+  "installed",
+  "activating",
+  "activated",
+  "redundant"
+};