1 files changed, 8 insertions, 1 deletions
diff --git a/tests/wpt/tests/interfaces/webtransport.idl b/tests/wpt/tests/interfaces/webtransport.idl
index 281c096d21d..7421dcb432c 100644
--- a/tests/wpt/tests/interfaces/webtransport.idl
+++ b/tests/wpt/tests/interfaces/webtransport.idl
@@ -93,8 +93,9 @@ dictionary WebTransportConnectionStats {
 };
 
 dictionary WebTransportDatagramStats {
-  unsigned long long expiredOutgoing;
   unsigned long long droppedIncoming;
+  unsigned long long expiredIncoming;
+  unsigned long long expiredOutgoing;
   unsigned long long lostOutgoing;
 };
 
@@ -103,6 +104,7 @@ interface WebTransportSendStream : WritableStream {
   attribute WebTransportSendGroup? sendGroup;
   attribute long long sendOrder;
   Promise<WebTransportSendStreamStats> getStats();
+  WebTransportWriter getWriter();
 };
 
 dictionary WebTransportSendStreamStats {
@@ -132,6 +134,11 @@ interface WebTransportBidirectionalStream {
   readonly attribute WebTransportSendStream writable;
 };
 
+[Exposed=*, SecureContext]
+interface WebTransportWriter : WritableStreamDefaultWriter {
+  Promise<undefined> atomicWrite(optional any chunk);
+};
+
 [Exposed=(Window,Worker), Serializable, SecureContext]
 interface WebTransportError : DOMException {
   constructor(optional DOMString message = "", optional WebTransportErrorOptions options = {});