1 files changed, 17 insertions, 0 deletions
diff --git a/components/script_bindings/webidls/ReadableStreamDefaultController.webidl b/components/script_bindings/webidls/ReadableStreamDefaultController.webidl
new file mode 100644
index 00000000000..6e3e1546dc8
--- /dev/null
+++ b/components/script_bindings/webidls/ReadableStreamDefaultController.webidl
@@ -0,0 +1,17 @@
+/* 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/#rs-default-controller-class-definition
+
+[Exposed=*]
+interface ReadableStreamDefaultController {
+  readonly attribute unrestricted double? desiredSize;
+
+  [Throws]
+  undefined close();
+  [Throws]
+  undefined enqueue(optional any chunk);
+  [Throws]
+  undefined error(optional any e);
+};