sandbox/linux: move ErrorCode into bpf_dsl

sandbox/linux: move ErrorCode into bpf_dsl

Removes the cyclic dependencies between bpf_dsl and seccomp-bpf.

BUG=449357
Committed: https://crrev.com/3909ebfa69566f7374a6900e63cd4d3c73a35378
Cr-Commit-Position: refs/heads/master@{#344610}

[mdempsky, 2015-08-20 17:16:11]

mdempsky@chromium.org changed reviewers:
+ rickyz@chromium.org

[mdempsky, 2015-08-20 17:16:11]

This CL builds on top of https://codereview.chromium.org/1302043002/, but it's
pretty logically distinct.

It touches a bunch of files, but hopefully it's straight forward.  Logically,
it's just moving ErrorCode from seccomp-bpf into bpf_dsl, and adapting it to fit
the logging/testing conventions followed within bpf_dsl.

No functional changes.

[rickyz (no longer on Chrome), 2015-08-20 22:41:40]

lgtm

Thanks for taking the opportunity to clang-format!

[mdempsky, 2015-08-20 22:42:35]

The CQ bit was checked by mdempsky@chromium.org

[commit-bot: I haz the power, 2015-08-20 22:44:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1292753009/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1292753009/40001

[commit-bot: I haz the power, 2015-08-20 23:18:25]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-08-20 23:19:04]

Patchset 3 (id:??) landed as
https://crrev.com/3909ebfa69566f7374a6900e63cd4d3c73a35378
Cr-Commit-Position: refs/heads/master@{#344610}