Roll src/third_party/chromite 1b2f2b335b20..b94afc0b88e6 (3 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/1b2f2b335b20..b94afc0b88e6

git log 1b2f2b335b20..b94afc0b88e6 --date=short --no-merges --format='%ad %ae %s'
2019-08-28 vapier@chromium.org lint: fix trailing-comma-tuple warnings/errors
2019-08-28 vapier@chromium.org import configparser from six.moves
2019-08-28 zamorzaev@chromium.org cbuildbot: Fix a keyval bug

Created with:
  gclient setdep -r src/third_party/chromite@b94afc0b88e6

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: I7413caf928d599b43a0b1f768b189dd87d851bce
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1774250Reviewed-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@{#691038}

DEPS

@@ -842,7 +842,7 @@ deps = {
 
   # Build tools for Chrome OS. Note: This depends on third_party/pyelftools.
   'src/third_party/chromite': {
-      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '1b2f2b335b20861f7e4631adcb4eb40c2bbb27d2',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'b94afc0b88e669bac73e6b2ef5659cea9fb41b23',
       'condition': 'checkout_linux',
   },