cc: Make sure to use at least the device scale when will-change: transf.

When we have a will-change: transform hint we keep whatever the current
scale is. Make sure that we use at least device scale to ensure that
content looks crisp when going from low scale to high.

R=enne@chromium.org, chrishtr@chromium.org

Bug: 596382
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I49780cac9f95eef4cbc324f85a7efddccfb67729
Reviewed-on: https://chromium-review.googlesource.com/546580
Reviewed-by: enne <enne@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Commit-Queue: Vladimir Levin <vmpstr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#482739}
2 files changed