LibWeb: Const qualify Web::Streams::ReadableStream::locked

Author: https://github.com/shannonbooth
Commit: 314eeeb9b2
Pull-request: https://github.com/SerenityOS/serenity/pull/19458
Reviewed-by: https://github.com/kennethmyhra
Reviewed-by: https://github.com/mattco98 ✅

Userland/Libraries/LibWeb/Streams/ReadableStream.cpp

@@ -66,7 +66,7 @@ ReadableStream::ReadableStream(JS::Realm& realm)
 ReadableStream::~ReadableStream() = default;
 
 // https://streams.spec.whatwg.org/#rs-locked
-bool ReadableStream::locked()
+bool ReadableStream::locked() const
 {
     // 1. Return ! IsReadableStreamLocked(this).
     return is_readable_stream_locked(*this);

Userland/Libraries/LibWeb/Streams/ReadableStream.h

@@ -34,7 +34,7 @@ public:
 
     virtual ~ReadableStream() override;
 
-    bool locked();
+    bool locked() const;
     WebIDL::ExceptionOr<JS::GCPtr<JS::Object>> cancel(JS::Value view);
     WebIDL::ExceptionOr<ReadableStreamReader> get_reader();