GitLab

Ash is only compiled on Chrome OS so it doesn't need OS_WIN or OS_CHROMEOS
ifdefs.

BUG=666773,665960
TEST=ash_unittests
R=msw@chromium.org

Review-Url: https://codereview.chromium.org/2576133002
Cr-Commit-Position: refs/heads/master@{#438706}