Roll src/third_party/chromite c11f343a2e62..6fdbea639221 (3 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/c11f343a2e62..6fdbea639221

git log c11f343a2e62..6fdbea639221 --date=short --no-merges --format='%ad %ae %s'
2019-10-19 vapier@chromium.org mock: backport py3 fix
2019-10-19 vapier@chromium.org cros_build_lib.run: rename stdout/stderr internal variables
2019-10-19 vapier@chromium.org gs: use utf-8 for most commands

Created with:
  gclient setdep -r src/third_party/chromite@6fdbea639221

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: I2ab4563f9a7f0c583c25df08b9eddc61a114d0d1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1869816Reviewed-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@{#707630}

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' + '@' + 'c11f343a2e623fd96fef15409d72f2063dd73155',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '6fdbea6392217ce7378f29ec070837435b5e31d9',
       'condition': 'checkout_linux',
   },