tree ec47b57fed205c1be4e71e96a11d7e8b235d3a71
parent 3b34fb02b6ea82cfab545bb1aa2626373a075d31
author Joel Kitching <kitching@google.com> 1538555649 +0800
committer chrome-bot <chrome-bot@chromium.org> 1539144842 -0700

FAFT: add support for optional keys in crossystem_checker

New systems may not support keys used in the |expected_dict| argument
sent to crossystem_checker.  Provide a new |optional| argument for
this purpose.

BUG=b:117142023
TEST=locally using test_that

Change-Id: I42b15a30796322c46a7935e24bafe97b8bcf4458
Reviewed-on: https://chromium-review.googlesource.com/1258749
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Joel Kitching <kitching@chromium.org>
Reviewed-by: Wai-Hong Tam <waihong@google.com>