security_Minijail_seccomp: add argument inspection tests.

Now that Minijail supports policies that inspect arguments,
add tests for that functionality.

BUG=None
TEST=security_Minijail_seccomp passes on lumpy, x86-alex, daisy

Change-Id: Id226072f7c48ea06f6c2ade0f77c55e2e7068bdc
Reviewed-on: https://gerrit.chromium.org/gerrit/39629
Tested-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Reviewed-by: Jim Hebert <jimhebert@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Commit-Ready: Jorge Lucangeli Obes <jorgelo@chromium.org>
5 files changed