cros_utils: add support for parsing for internal CL uploads

BUG=b:333462347
TEST=Unittests

Change-Id: Ia6abfee1465465784c2934a4ac64e878ac577d6c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/5458262
Reviewed-by: Jordan Abrahams-Whitehead <ajordanr@google.com>
Tested-by: George Burgess <gbiv@chromium.org>
Commit-Queue: George Burgess <gbiv@chromium.org>
2 files changed