Bug 1734174 - Remove unneeded JSContext parameter from SetUpReadableStreamDefaultReader() r=mgaudet

Depends on D139868

Differential Revision: https://phabricator.services.mozilla.com/D139869

dom/streams/ReadableStream.cpp

@@ -469,7 +469,7 @@ AcquireReadableStreamDefaultReader(JSContext* aCx, ReadableStream* aStream,
       new ReadableStreamDefaultReader(aStream->GetParentObject());
 
   // Step 2.
-  SetUpReadableStreamDefaultReader(aCx, reader, aStream, aRv);
+  SetUpReadableStreamDefaultReader(reader, aStream, aRv);
   if (aRv.Failed()) {
     return nullptr;
   }

dom/streams/ReadableStreamDefaultReader.cpp

@@ -402,8 +402,7 @@ already_AddRefed<Promise> ReadableStreamGenericReader::Cancel(
 }
 
 // https://streams.spec.whatwg.org/#set-up-readable-stream-default-reader
-void SetUpReadableStreamDefaultReader(JSContext* aCx,
-                                      ReadableStreamDefaultReader* aReader,
+void SetUpReadableStreamDefaultReader(ReadableStreamDefaultReader* aReader,
                                       ReadableStream* aStream,
                                       ErrorResult& aRv) {
   // Step 1.

dom/streams/ReadableStreamDefaultReader.h

@@ -91,8 +91,8 @@ class ReadableStreamDefaultReader final : public ReadableStreamGenericReader,
 };
 
 extern void SetUpReadableStreamDefaultReader(
-    JSContext* aCx, ReadableStreamDefaultReader* aReader,
-    ReadableStream* aStream, ErrorResult& aRv);
+    ReadableStreamDefaultReader* aReader, ReadableStream* aStream,
+    ErrorResult& aRv);
 
 void ReadableStreamDefaultReaderErrorReadRequests(
     JSContext* aCx, ReadableStreamDefaultReader* aReader,