Roll Depot Tools from e64cd3aeff71 to 6402141d1f56 (3 revisions)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/e64cd3aeff71..6402141d1f56

2020-07-08 sokcevic@google.com Rename blocklist/allowlist to skip_list/check_list
2020-07-08 vadimsh@chromium.org [lucicfg] Update to v1.18.2.
2020-07-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).

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:1051724,chromium:1098560
Tbr: apolito@google.com,ehmaldonado@google.com,sokcevic@google.com,ajp@google.com
Change-Id: If49cd1165fda48852ddbcbc51a03f6d2e5c79d48
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2288487Reviewed-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@{#786539}

DEPS

@@ -885,7 +885,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'e64cd3aeff711420369d8daf2a60006045591622',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '6402141d1f56c8b6e909a17b50474ae744bd5180',
 
   'src/third_party/devtools-frontend/src':
     Var('chromium_git') + '/devtools/devtools-frontend' + '@' + Var('devtools_frontend_revision'),