Roll ChromeOS orderfile from 81-3987.18-1578307131-benchmark-81.0.4019.0-r1 to...

Roll ChromeOS orderfile from 81-3987.18-1578307131-benchmark-81.0.4019.0-r1 to 81-3987.39-1578912426-benchmark-81.0.4019.0-r1

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/cros-orderfile-chromium
Please CC c-compiler-chrome@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

Tbr: c-compiler-chrome@google.com
Change-Id: Ida8a7bcad16f06d55e8d2ec3eecdd0e258fbc104
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2006714Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#732744}

chromeos/profiles/orderfile.newest.txt

-chromeos-chrome-orderfile-field-81-3987.18-1578307131-benchmark-81.0.4019.0-r1.orderfile.xz
+chromeos-chrome-orderfile-field-81-3987.39-1578912426-benchmark-81.0.4019.0-r1.orderfile.xz
\ No newline at end of file