Roll src/third_party/chromite c2a6ac81ca46..94a459c0b4c7 (3 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/c2a6ac81ca46..94a459c0b4c7

git log c2a6ac81ca46..94a459c0b4c7 --date=short --no-merges --format='%ad %ae %s'
2019-10-01 vapier@chromium.org cros_build_lib: run: drop unused error_message setting
2019-10-01 vapier@chromium.org unittests: handle some renamed assert methods
2019-10-01 vapier@chromium.org cros_test_lib: deprecate some more unittest aliases

Created with:
  gclient setdep -r src/third_party/chromite@94a459c0b4c7

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/+/master/autoroll/README.md

CQ_INCLUDE_TRYBOTS=luci.chromium.try:chromeos-kevin-rel
TBR=chrome-os-gardeners@google.com

Bug: None
Change-Id: Ieba503f928e77cd65551bbaa59d53c11705a98d2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1833109Reviewed-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@{#701454}

DEPS

@@ -862,7 +862,7 @@ deps = {
 
   # Build tools for Chrome OS. Note: This depends on third_party/pyelftools.
   'src/third_party/chromite': {
-      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'c2a6ac81ca46ce9335661d7034b3c28edd7b1bbf',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '94a459c0b4c70a4476ce63ebd8d841c9e2a6583e',
       'condition': 'checkout_linux',
   },