Roll src/third_party/chromite b2f9f7fb1ed2..16438a83d608 (3 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/b2f9f7fb1ed2..16438a83d608

git log b2f9f7fb1ed2..16438a83d608 --date=short --no-merges --format='%ad %ae %s'
2019-10-03 cjmcdonald@chromium.org Reland "Enable new parallel_emerge impl as default"
2019-10-03 cjmcdonald@chromium.org De-parallelize UnitTestStage
2019-10-03 vapier@chromium.org cros_build_lib: make run & helpers a bit more robust

Created with:
  gclient setdep -r src/third_party/chromite@16438a83d608

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: I57fdc2508832f7dec2509ac80d7c8c9044190b73
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1837135Reviewed-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@{#702322}

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' + '@' + 'b2f9f7fb1ed2041dae5d86bd709dc656036529c1',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '16438a83d6080f96a37ca023ac5e0d4edc483dd1',
       'condition': 'checkout_linux',
   },