Bug 1653367 [wpt PR 24632] - Update interfaces/streams.idl, a=testonly

Automatic update from web-platform-tests
Update interfaces/streams.idl (#24632)

Source: https://github.com/tidoust/reffy-reports/blob/77c34a4/ed/idl/streams.idl
Build: https://travis-ci.org/tidoust/reffy-reports/builds/708867439
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wpt-commits: e71dd66da3b3a6f44c5174b4495ad827d9c3f917
wpt-pr: 24632

testing/web-platform/tests/interfaces/streams.idl

@@ -137,7 +137,7 @@ dictionary UnderlyingSink {
 };
 
 callback UnderlyingSinkStartCallback = any (WritableStreamDefaultController controller);
-callback UnderlyingSinkWriteCallback = Promise<void> (WritableStreamDefaultController controller, optional any chunk);
+callback UnderlyingSinkWriteCallback = Promise<void> (any chunk, WritableStreamDefaultController controller);
 callback UnderlyingSinkCloseCallback = Promise<void> ();
 callback UnderlyingSinkAbortCallback = Promise<void> (optional any reason);
 
@@ -180,7 +180,7 @@ dictionary Transformer {
 
 callback TransformerStartCallback = any (TransformStreamDefaultController controller);
 callback TransformerFlushCallback = Promise<void> (TransformStreamDefaultController controller);
-callback TransformerTransformCallback = Promise<void> (TransformStreamDefaultController controller, optional any chunk);
+callback TransformerTransformCallback = Promise<void> (any chunk, TransformStreamDefaultController controller);
 
 [Exposed=(Window,Worker,Worklet)]
 interface TransformStreamDefaultController {