@Override
  protected Response<byte[]> parseNetworkResponse(NetworkResponse response) {
    return Response.success(response.data, HttpHeaderParser.parseCacheHeaders(response));
  }
A Volley request that will return the raw content as a byte array and does not use Volley's
cache.
imagepipeline-backends/imagepipeline-volley/src/main/java/com/facebook/imagepipeline/backends/volley/RawRequest.java