UTF8InputStream* it = new UTF8InputStream(aStreamToWrap, aBufferSize);
UTF8InputStream* it = new UTF8InputStream();
NS_NewUTF8ConverterStream(nsIUnicharInputStream** aInstancePtrResult,                          nsIInputStream* aStreamToWrap,                          PRInt32 aBufferSize){  // Create converter input stream  UTF8InputStream* it =    new UTF8InputStream(aStreamToWrap, aBufferSize);    if (nsnull == it) {    return NS_ERROR_OUT_OF_MEMORY;  }  return it->QueryInterface(NS_GET_IID(nsIUnicharInputStream),                             (void **) aInstancePtrResult);}