Roll src/third_party/depot_tools aa4d8a75604d..8a859625577b (1 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/aa4d8a75604d..8a859625577b

git log aa4d8a75604d..8a859625577b --date=short --no-merges --format='%ad %ae %s'
2019-10-04 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).

Created with:
  gclient setdep -r src/third_party/depot_tools@8a859625577b

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/depot-tools-chromium-autoroll
Please CC agable@chromium.org 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

TBR=agable@chromium.org

Bug: None
Change-Id: I406ea3357c435e3262cb501634a26bd0b66fbaeb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1841495Reviewed-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@{#703008}

DEPS

@@ -887,7 +887,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'aa4d8a75604db8a824c82cca0e6f8001e6b11723',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '8a859625577b2e2a918765964a5e6ec1eb75d328',
 
   'src/third_party/devtools-node-modules':
     Var('chromium_git') + '/external/github.com/ChromeDevTools/devtools-node-modules' + '@' + Var('devtools_node_modules_revision'),