Roll src/third_party/depot_tools ed0cc5f6fd8e..a81450253f88 (1 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/ed0cc5f6fd8e..a81450253f88

git log ed0cc5f6fd8e..a81450253f88 --date=short --first-parent --format='%ad %ae %s'
2020-01-06 ehmaldonado@google.com depot_tools: Use mock from vpython (or unittest.mock) instead of third_party/mock

Created with:
  gclient setdep -r src/third_party/depot_tools@a81450253f88

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: I92eb147981445f3e0aa15fe5bc820d1365750e6e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1988260Reviewed-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@{#728669}

DEPS

@@ -904,7 +904,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'ed0cc5f6fd8ee57e9219f840d492de3109ba6d83',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'a81450253f8880c27e2859f271fa6fe00c6c7104',
 
   'src/third_party/devtools-frontend/src':
     Var('chromium_git') + '/devtools/devtools-frontend' + '@' + Var('devtools_frontend_revision'),