Roll src/third_party/depot_tools 29d5cf85ac28..a4f9aa037585 (1 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/29d5cf85ac28..a4f9aa037585

git log 29d5cf85ac28..a4f9aa037585 --date=short --first-parent --format='%ad %ae %s'
2020-02-27 iannucci@chromium.org Refactor OWNERS for LUCI-related tools.

Created with:
  gclient setdep -r src/third_party/depot_tools@a4f9aa037585

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

Bug: None
Tbr: agable@chromium.org
Change-Id: Idc7d60aab072dbde783f4049a8b654d12fd6c144
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2078608Reviewed-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@{#745210}

DEPS

@@ -879,7 +879,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '29d5cf85ac28d9ef59228e8805ab7b1078baa667',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'a4f9aa037585a99a5c5e1b029991c040f5a29e7c',
 
   'src/third_party/devtools-frontend/src':
     Var('chromium_git') + '/devtools/devtools-frontend' + '@' + Var('devtools_frontend_revision'),