Roll Depot Tools from 1c3c93911966 to e856b6bba826 (1 revision)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/1c3c93911966..e856b6bba826

2021-01-07 gbeaty@chromium.org Enable set_output_commit to be used with RevisionFallbackChain.

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 apolito@google.com,ehmaldonado@google.com,sokcevic@google.com,ajp@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/+doc/master/autoroll/README.md

Bug: chromium:1141886,chromium:1159749
Tbr: apolito@google.com,ehmaldonado@google.com,sokcevic@google.com,ajp@google.com
Change-Id: I5f92f9c4030573dc4cf825d76b0277554002152c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2615180Reviewed-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@{#841132}

DEPS

@@ -893,7 +893,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '1c3c9391196663425a3b597cfde81e08213e4725',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'e856b6bba8266df0634a365b0a51b6097bb01d4b',
 
   'src/third_party/devtools-frontend/src':
     Var('chromium_git') + '/devtools/devtools-frontend' + '@' + Var('devtools_frontend_revision'),