R=sergiyb@chromium.org,andybons@chromium.org
BUG=579180

Review URL: https://codereview.chromium.org/1844343002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@299589 0039d316-1c4b-4281-b951-d872f2087c98