Roll Depot Tools from e4e1fb30c836 to caa2f149fb8b (2 revisions)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/e4e1fb30c836..caa2f149fb8b

2020-07-22 nodir@chromium.org Roll dirmd to 6c4507c0
2020-07-22 guterman@google.com Add explicit "python" to script for Windows compatibility

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 ehmaldonado@google.com,sokcevic@google.com,ajp@google.com,apolito@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:1106176,chromium:923016
Tbr: ehmaldonado@google.com,sokcevic@google.com,ajp@google.com,apolito@google.com
Change-Id: Id61e673a2891dceee3b9aac19fd5eb60e7217504
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2314800Reviewed-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@{#791039}

DEPS

@@ -895,7 +895,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'e4e1fb30c83672377ee98154f8fb366a1ff640a9',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'caa2f149fb8b84ca87d61e9d5508457b8e87d59f',
 
   'src/third_party/devtools-frontend/src':
     Var('chromium_git') + '/devtools/devtools-frontend' + '@' + Var('devtools_frontend_revision'),