Immutable container for a burst of capture results.
mRequestBuilders = new ArrayList<>();
int i = 0;
for (CaptureRequest r : requests) {
mRequestBuilders.add(new RequestHolder.Builder(requestId, /*subsequenceId*/i,
/*request*/r, repeating, jpegSurfaceIds));
++i;
}
mRepeating = repeating;
mRequestId = requestId;