Roll Chromite from 8ce5f5261ab7 to 84bd221ed748 (4 revisions)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/8ce5f5261ab7..84bd221ed748

2020-10-09 chrome-bot@chromium.org Update config settings by config-updater.
2020-10-09 chrome-bot@chromium.org Update config settings by config-updater.
2020-10-09 morg@google.com Add grunt-arc-r board to PFQ (experimental)
2020-10-08 chrome-bot@chromium.org Update config settings by config-updater.

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/chromite-chromium-autoroll
Please CC chrome-os-gardeners@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/+doc/master/autoroll/README.md

Cq-Include-Trybots: luci.chrome.try:chromeos-betty-pi-arc-chrome;luci.chromium.try:chromeos-kevin-rel
Tbr: chrome-os-gardeners@google.com
Change-Id: Ibc3f777315de0f38adab46737f90dee6eb12ebc3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2462505Reviewed-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@{#815700}

DEPS

@@ -881,7 +881,7 @@ deps = {
   # Tools used when building Chrome for Chrome OS. This affects both the Simple
   # Chrome workflow, as well as the chromeos-chrome ebuild.
   'src/third_party/chromite': {
-      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '8ce5f5261ab7a2434295dee3f744e155c2abc9b2',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '84bd221ed748e1d0a3155c8a9a210d4802f94678',
       'condition': 'checkout_chromeos',
   },