ref: 1c85230344aa4854dfb8aa3c7bceaea183d66dce
parent: 7987686397b8dc497d00468b13d030af8a915b8c
parent: d6c5ef4557dea159db81a90082aee48581f3b184
author: Alex Converse <aconverse@google.com>
date: Tue Jul 26 15:39:54 EDT 2016
Merge "Only consider visible 4x4s in pixel domain error."