mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
This is needed for reference tests so we can diff images. This is just a straight copy of the image diff in the chromium repo. R=eseidel@google.com, esprehn@chromium.org Review URL: https://codereview.chromium.org/801443002