Roll src/third_party/depot_tools c5f95c03ada3..3ff0e5dfaf1a (2 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/c5f95c03ada3..3ff0e5dfaf1a

git log c5f95c03ada3..3ff0e5dfaf1a --date=short --no-merges --format='%ad %ae %s'
2019-08-06 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-08-06 ehmaldonado@chromium.org Reland "depot_tools: Move six to depot_tools' .vpython"

Created with:
  gclient setdep -r src/third_party/depot_tools@3ff0e5dfaf1a

The AutoRoll server is located here: https://autoroll.skia.org/r/depot-tools-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=agable@chromium.org

Bug: chromium:984182
Change-Id: I4f8c461fd8bd148e5fd08edd5fa96c7114b71b44
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1738322Reviewed-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@{#684473}

DEPS

@@ -834,7 +834,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'c5f95c03ada389778ea988125403b9c3e83c2958',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '3ff0e5dfaf1ac7a91874705012d9fe25eccd26bc',
 
   'src/third_party/devtools-node-modules':
     Var('chromium_git') + '/external/github.com/ChromeDevTools/devtools-node-modules' + '@' + Var('devtools_node_modules_revision'),