Roll silvermont AFDO profile from...

Roll silvermont AFDO profile from 79-3904.12-1569231291-benchmark-79.0.3923.0-r1 to 79-3904.19-1569836348-benchmark-79.0.3923.0-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-afdo-silvermont-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

CQ_EXTRA_TRYBOTS=
TBR=c-compiler-chrome@google.com

Change-Id: I697bffcc9e79dfa4fd2597147ddd4600ad9780a9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1831596Reviewed-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@{#701310}

chromeos/profiles/silvermont.afdo.newest.txt

-chromeos-chrome-amd64-silvermont-79-3904.12-1569231291-benchmark-79.0.3923.0-r1-redacted.afdo.xz
+chromeos-chrome-amd64-silvermont-79-3904.19-1569836348-benchmark-79.0.3923.0-r1-redacted.afdo.xz
\ No newline at end of file