tree 78b49af411c82ccb1960a3f3fc5adaa33704573b
parent b1be46b1d938c21eafa7ded5560bcc10b71cd471
author msarett <msarett@google.com> 1463502664 -0700
committer Commit bot <commit-bot@chromium.org> 1463502664 -0700

Update libpng to 1.6.22rc01

If there are no issues, this version will be released May 26.

Let's start testing with it, so we are ready to update Chrome when
it is available.

BUG=skia:4710
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1983853002

Review-Url: https://codereview.chromium.org/1983853002