Roll Chromite from 875b30eb4cdf to d4e0f040446f (9 revisions)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/875b30eb4cdf..d4e0f040446f

2021-01-07 morg@google.com Mark grunt-arc-r as non-experimental for PFQ
2021-01-07 lamontjones@chromium.org api: Update python bindings.
2021-01-07 isaaclee@google.com zork: add factory branch builder
2021-01-07 sbelmon@google.com licensing: add "tainted" signal
2021-01-06 tcwang@google.com toolchain_util: Add function to modify kernel afdo metadata
2021-01-06 jhorwich@google.com Remove unittests from grunt-arc64 builders
2021-01-06 kimjae@chromium.org xbuddy: Handle chromiumos_base_image.bin
2021-01-06 chrome-bot@chromium.org Update config settings by config-updater.
2021-01-06 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: Id5831227ac12c7d02005ffa82a932974d8a4bec2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2614766Reviewed-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@{#841077}

DEPS

@@ -873,7 +873,7 @@ 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' + '@' + '875b30eb4cdff01eed1030b46c64e39a30078826',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'd4e0f040446f15ae891f3354d80ab8706fb1a7ce',
       'condition': 'checkout_chromeos',
   },