Roll src/third_party/chromite 0ce6d876771d..ca28b0ef0037 (4 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/0ce6d876771d..ca28b0ef0037

git log 0ce6d876771d..ca28b0ef0037 --date=short --no-merges --format='%ad %ae %s'
2019-10-22 vapier@chromium.org autotest_quickmerge: fix under Python 3
2019-10-22 manojgupta@google.com cros_fuzz: Install virtual/implicit-system only if needed.
2019-10-22 vapier@chromium.org cros_branch_unittest: encode captured output
2019-10-21 vapier@chromium.org trigger_cr50_signing: fix __call__ signature

Created with:
  gclient setdep -r src/third_party/chromite@ca28b0ef0037

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: Id53ce3d8ed196d4c29be413ba1a67cb498fdf143
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1873325Reviewed-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@{#708082}

DEPS

@@ -866,7 +866,7 @@ deps = {
 
   # Build tools for Chrome OS. Note: This depends on third_party/pyelftools.
   'src/third_party/chromite': {
-      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '0ce6d876771dfa1aa92664a0bdc9fe03b46e8774',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'ca28b0ef003767a0925e609f0f3f5c123756038a',
       'condition': 'checkout_linux',
   },