Add in three missing commas for chromeos_test_config.

BUG=None
TEST=Ran ./downloader locally and ctrl-c'd it once it started up

Change-Id: I1ce605eb30f55f9bb1dfab1f3303c72faef00cd4
Reviewed-on: https://gerrit.chromium.org/gerrit/13440
Reviewed-by: John D Hong <johndhong@google.com>
Reviewed-by: Scott Zawalski <scottz@chromium.org>
Tested-by: Scott Zawalski <scottz@chromium.org>
1 file changed