Roll Chromite from efc444306186 to aa250cf881de (5 revisions)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/efc444306186..aa250cf881de

2020-12-01 pprabhu@chromium.org Refresh build API bindings
2020-11-30 engeg@google.com cbuildbot: report cros/parent_buildbucket_id for COIL
2020-11-30 zhuohao@chromium.org volteer: add factory branch builder
2020-11-30 vapier@chromium.org portage_util: note when we can drop CROS_WORKON_BLACKLIST
2020-11-30 allenwebb@google.com portage_util: Add cros-rust to _ECLASS_IMPLIES_TEST.

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: Ib76439fbb31eeb1afa33cd0e0d0b12f55b5ce5d9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2568013Reviewed-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@{#832406}

DEPS

@@ -899,7 +899,7 @@ 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' + '@' + 'efc444306186ababe5575bb806585efc464fa772',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'aa250cf881dec006e0137dd40f079d2ce7092067',
       'condition': 'checkout_chromeos',
   },