void appendStream(FileStream stream, [ int maxSize ])

Source

void appendStream(FileStream stream, [int maxSize]) {
  if (maxSize != null) {
    _blink.BlinkSourceBuffer.instance.appendStream_Callback_2_(this, stream, maxSize);
    return;
  }
  _blink.BlinkSourceBuffer.instance.appendStream_Callback_1_(this, stream);
  return;
}