Roll src/third_party/depot_tools 6e48505301f4..989bc351863d (2 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/6e48505301f4..989bc351863d

git log 6e48505301f4..989bc351863d --date=short --no-merges --format='%ad %ae %s'
2019-10-17 ehmaldonado@chromium.org Revert "depot_tools: Stop using oauth2client"
2019-10-17 ukai@chromium.org Revert "put goma client in depot_tools"

Created with:
  gclient setdep -r src/third_party/depot_tools@989bc351863d

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

TBR=agable@chromium.org

Bug: chromium:1001756,chromium:1015285,chromium:b/77663154
Change-Id: I1184131ac2502775bacdfdf43239b23a222f368e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1866429Reviewed-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@{#706861}

DEPS

@@ -887,7 +887,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '6e48505301f4144dee51e90a40ba8a32f346a266',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '989bc351863dd6cbb7e645a027a3c5e04104e44f',
 
   'src/third_party/devtools-node-modules':
     Var('chromium_git') + '/external/github.com/ChromeDevTools/devtools-node-modules' + '@' + Var('devtools_node_modules_revision'),