Manually update to idl@3.75.0 (microsoft#2457)

saschanaz · web-flow · commit a32928ff4f7f · 2026-03-29T21:35:00.000Z
Co-authored-by: saschanaz &lt;saschanaz@users.noreply.github.com&gt;
diff --git a/inputfiles/patches/webrtc.kdl b/inputfiles/patches/webrtc.kdl
@@ -14,3 +14,11 @@ removals {
     member codec // Blink only as of 2024-11
   }
 }
+
+interface RTCSctpTransport {
+  property maxMessageSize {
+    // https://github.com/w3c/webrtc-pc/pull/3094 made it nullable,
+    // but nobody implements it as of 2026-03
+    type nullable=#false
+  }
+}
diff --git a/inputfiles/patches/webtransport.kdl b/inputfiles/patches/webtransport.kdl
@@ -44,6 +44,10 @@ interface WebTransportBidirectionalStream {
 interface WebTransportDatagramDuplexStream {
   // https://github.com/w3c/webtransport/pull/638 removed this but browsers still have this
   property writable type=WritableStream readonly=#true mdnUrl="https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/writable"
+
+  // https://github.com/w3c/webtransport/pull/735 removed these but browsers still have them
+  property incomingHighWaterMark type=long mdnUrl="https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/incomingHighWaterMark"
+  property outgoingHighWaterMark type=long mdnUrl="https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/outgoingHighWaterMark"
 }
 
 // transferable only on WebKit as of 2026-03
diff --git a/package-lock.json b/package-lock.json

Original file line number	Diff line number	Diff line change
`@@ -14,3 +14,11 @@ removals {`
`14`	`14`	`member codec // Blink only as of 2024-11`
`15`	`15`	`}`
`16`	`16`	`}`
	`17`	`+`
	`18`	`+interface RTCSctpTransport {`
	`19`	`+ property maxMessageSize {`
	`20`	`+ // https://github.com/w3c/webrtc-pc/pull/3094 made it nullable,`
	`21`	`+ // but nobody implements it as of 2026-03`
	`22`	`+ type nullable=#false`
	`23`	`+ }`
	`24`	`+}`