[cleanup] [proxies] Unify style of recently written code

[cleanup] [proxies] Unify style of recently written code

In particular, return Maybe<bool> from any function that can throw, and
use MAYBE_RETURN and RETURN_FAILURE macros consistently where applicable.

No change in behavior intended.

Committed: https://crrev.com/e94f07aa2e909410d6b7611c967106035a9d860a
Cr-Commit-Position: refs/heads/master@{#32723}

[Jakob Kummerow, 2015-12-09 16:00:06]

jkummerow@chromium.org changed reviewers:
+ cbruni@chromium.org

[Jakob Kummerow, 2015-12-09 16:00:06]

PTAL.

[Camillo Bruni, 2015-12-09 16:17:18]

lgtm

[Jakob Kummerow, 2015-12-09 17:41:49]

The CQ bit was checked by jkummerow@chromium.org

[Jakob Kummerow, 2015-12-09 17:41:49]

The patchset sent to the CQ was uploaded after l-g-t-m from cbruni@chromium.org
Link to the patchset: https://codereview.chromium.org/1513713002/#ps40001
(title: "rebased")

[commit-bot: I haz the power, 2015-12-09 17:42:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1513713002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1513713002/40001

[commit-bot: I haz the power, 2015-12-09 18:06:55]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-12-09 18:07:06]

Description was changed from

==========
[cleanup] [proxies] Unify style of recently written code

In particular, return Maybe<bool> from any function that can throw, and
use MAYBE_RETURN and RETURN_FAILURE macros consistently where applicable.

No change in behavior intended.
==========

to

==========
[cleanup] [proxies] Unify style of recently written code

In particular, return Maybe<bool> from any function that can throw, and
use MAYBE_RETURN and RETURN_FAILURE macros consistently where applicable.

No change in behavior intended.

Committed: https://crrev.com/e94f07aa2e909410d6b7611c967106035a9d860a
Cr-Commit-Position: refs/heads/master@{#32723}
==========

[commit-bot: I haz the power, 2015-12-09 18:07:07]

Patchset 3 (id:??) landed as
https://crrev.com/e94f07aa2e909410d6b7611c967106035a9d860a
Cr-Commit-Position: refs/heads/master@{#32723}