Add StructuredSerializeOptions enqueue variant

Author: youennf

index.bs

@@ -1470,7 +1470,8 @@ interface ReadableStreamDefaultController {
   readonly attribute unrestricted double? desiredSize;
 
   undefined close();
-  undefined enqueue(optional any chunk, optional sequence<object> transfer = []);
+  undefined enqueue(any chunk, sequence<object> transfer);
+  undefined enqueue(optional any chunk, optional StructuredSerializeOptions options = { });
   undefined error(optional any e);
 };
 </xmp>
@@ -1580,12 +1581,23 @@ the following table:
 </div>
 
 <div algorithm>
- The <dfn id="rs-default-controller-enqueue" method
- for="ReadableStreamDefaultController">enqueue(|chunk|, |transferList|)</dfn> method steps are:
+ The <dfn id="ref-for-rs-default-controller-enqueue①" method
+ for="ReadableStreamDefaultController">enqueue(|chunk|, |transfer|)</dfn> method steps are:
 
  1. If ! [$ReadableStreamDefaultControllerCanCloseOrEnqueue$]([=this=]) is false, throw a
     {{TypeError}} exception.
- 1. Perform ? [$ReadableStreamDefaultControllerEnqueue$]([=this=], |chunk|, |transferList|).
+ 1. Perform ? [$ReadableStreamDefaultControllerEnqueue$]([=this=], |chunk|, |transfer|).
+</div>
+
+
+<div algorithm>
+ The <dfn id="ref-for-rs-default-controller-enqueue②" method
+ for="ReadableStreamDefaultController">enqueue(|chunk|, |options|)</dfn> method steps are:
+
+ 1. Let |transfer| be |options|["transfer"].
+ 1. If ! [$ReadableStreamDefaultControllerCanCloseOrEnqueue$]([=this=]) is false, throw a
+    {{TypeError}} exception.
+ 1. Perform ? [$ReadableStreamDefaultControllerEnqueue$]([=this=], |chunk|, |transfer|).
 </div>
 
 <div algorithm>