Roll src/third_party/depot_tools/ 81b26429c..c7d0b3408 (3 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/81b26429c8f6..c7d0b34084e5

$ git log 81b26429c..c7d0b3408 --date=short --no-merges --format='%ad %ae %s'
2018-03-28 ehmaldonado presubmit support: Run all tests in parallel.
2018-04-02 agable Kick recipe roller
2018-04-02 agable presubmit: don't die when skipping unknown checks

Created with:
  roll-dep src/third_party/depot_tools
BUG=chromium:819774,chromium:828154,chromium:770408,chromium:828154


The AutoRoll server is located here: https://depot-tools-chromium-roll.skia.org

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=agable@chromium.org

Change-Id: I25169163511e6438ed68514290681cc3213ab7d1
Reviewed-on: https://chromium-review.googlesource.com/991352
Commit-Queue: depot-tools-chromium-autoroll <depot-tools-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: depot-tools-chromium-autoroll <depot-tools-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#547600}

DEPS

@@ -433,7 +433,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '81b26429c8f61bb4ae22edf4c7de0febbdf47467',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'c7d0b34084e589a895875beb9cd7ca0ba961fd4f',
 
   'src/third_party/devtools-node-modules':
     Var('chromium_git') + '/external/github.com/ChromeDevTools/devtools-node-modules' + '@' + Var('devtools_node_modules_revision'),