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/ReadableStreamDefaultReader.webidl

@@ -0,0 +1,48 @@
+/* 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://streams.spec.whatwg.org/#generic-reader-mixin-definition
+// https://streams.spec.whatwg.org/#default-reader-class-definition
+
+typedef (ReadableStreamDefaultReader or ReadableStreamBYOBReader) ReadableStreamReader;
+
+interface mixin ReadableStreamGenericReader {
+  readonly attribute Promise<undefined> closed;
+
+  [NewObject]
+  Promise<undefined> cancel(optional any reason);
+};
+
+[Exposed=*]
+interface ReadableStreamDefaultReader {
+  [Throws]
+  constructor(ReadableStream stream);
+
+  [NewObject]
+  Promise<ReadableStreamReadResult> read();
+
+  [Throws]
+  undefined releaseLock();
+};
+ReadableStreamDefaultReader includes ReadableStreamGenericReader;
+
+
+dictionary ReadableStreamReadResult {
+ any value;
+ boolean done;
+};
+
+// The DefaultTeeReadRequest interface is entirely internal to Servo, and should not be accessible to
+// web pages.
+[LegacyNoInterfaceObject, Exposed=(Window,Worker)]
+// Need to escape "DefaultTeeReadRequest" so it's treated as an identifier.
+interface _DefaultTeeReadRequest {
+};
+
+// The DefaultTeeUnderlyingSource interface is entirely internal to Servo, and should not be accessible to
+// web pages.
+[LegacyNoInterfaceObject, Exposed=(Window,Worker)]
+// Need to escape "DefaultTeeUnderlyingSource" so it's treated as an identifier.
+interface _DefaultTeeUnderlyingSource {
+};