Roll src/third_party/depot_tools/ adcf030f6..a1df57cdc (2 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/adcf030f6910..a1df57cdc657

$ git log adcf030f6..a1df57cdc --date=short --no-merges --format='%ad %ae %s'
2018-04-03 ehmaldonado roll-dep: Support dictionaries in deps revisions.
2018-04-03 ehmaldonado Revert "presubmit support: Run all tests in parallel."

Created with:
  roll-dep src/third_party/depot_tools
BUG=chromium:760633,chromium:819774


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: I965e7d61676852711ede33839ace1676344891d2
Reviewed-on: https://chromium-review.googlesource.com/994130Reviewed-by: depot-tools-chromium-autoroll <depot-tools-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: depot-tools-chromium-autoroll <depot-tools-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#547961}

DEPS

@@ -436,7 +436,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'adcf030f69105ac2af0f2055ed8399403f5c6fb9',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + 'a1df57cdc6573da28eebdcac0d58941f79b176a7',
 
   'src/third_party/devtools-node-modules':
     Var('chromium_git') + '/external/github.com/ChromeDevTools/devtools-node-modules' + '@' + Var('devtools_node_modules_revision'),