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/Request.webidl

@@ -0,0 +1,104 @@
+/* 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://fetch.spec.whatwg.org/#request-class
+
+typedef (Request or USVString) RequestInfo;
+
+[Exposed=(Window,Worker)]
+interface Request {
+  [Throws] constructor(RequestInfo input, optional RequestInit init = {});
+  readonly attribute ByteString method;
+  readonly attribute USVString url;
+  [SameObject] readonly attribute Headers headers;
+
+  readonly attribute RequestDestination destination;
+  readonly attribute USVString referrer;
+  readonly attribute ReferrerPolicy referrerPolicy;
+  readonly attribute RequestMode mode;
+  readonly attribute RequestCredentials credentials;
+  readonly attribute RequestCache cache;
+  readonly attribute RequestRedirect redirect;
+  readonly attribute DOMString integrity;
+
+  [NewObject, Throws] Request clone();
+};
+
+Request includes Body;
+
+dictionary RequestInit {
+  ByteString method;
+  HeadersInit headers;
+  BodyInit? body;
+  USVString referrer;
+  ReferrerPolicy referrerPolicy;
+  RequestMode mode;
+  RequestCredentials credentials;
+  RequestCache cache;
+  RequestRedirect redirect;
+  DOMString integrity;
+  any window; // can only be set to null
+};
+
+enum RequestDestination {
+  "",
+  "audio",
+  "document",
+  "embed",
+  "font",
+  "frame",
+  "iframe",
+  "image",
+  "json",
+  "manifest",
+  "object",
+  "report",
+  "script",
+  "sharedworker",
+  "style",
+  "track",
+  "video",
+  "worker",
+  "xslt"
+};
+
+enum RequestMode {
+  "navigate",
+  "same-origin",
+  "no-cors",
+  "cors"
+};
+
+enum RequestCredentials {
+  "omit",
+  "same-origin",
+  "include"
+};
+
+enum RequestCache {
+  "default",
+  "no-store",
+  "reload",
+  "no-cache",
+  "force-cache",
+  "only-if-cached"
+};
+
+enum RequestRedirect {
+  "follow",
+  "error",
+  "manual"
+};
+
+enum ReferrerPolicy {
+  "",
+  "no-referrer",
+  "no-referrer-when-downgrade",
+  "origin",
+  "origin-when-cross-origin",
+  "unsafe-url",
+  "same-origin",
+  "strict-origin",
+  "strict-origin-when-cross-origin"
+};