Roll src/third_party/depot_tools/ 7707c8a10..64e33cba1 (1 commit)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/7707c8a10d46..64e33cba1794

$ git log 7707c8a10..64e33cba1 --date=short --no-merges --format='%ad %ae %s'
2018-02-20 jbudorick Fix gclient flattening of CIPD deps.

Created with:
  roll-dep src/third_party/depot_tools


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: I6fe6380c46a112fed2f67582080791898dc33d72
Reviewed-on: https://chromium-review.googlesource.com/927603


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@{#537933}