Introduce CertErrors::ToDebugString().

Introduce CertErrors::ToDebugString().

This removes some duplicated code.

BUG=634443
Committed: https://crrev.com/00dba514371aaeae740c069266263a9544044b3d
Cr-Commit-Position: refs/heads/master@{#417498}

[eroman, 2016-09-09 00:57:13]

The CQ bit was checked by eroman@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-09 00:57:25]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[eroman, 2016-09-09 00:59:45]

The CQ bit was checked by eroman@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-09 00:59:46]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[eroman, 2016-09-09 01:00:04]

eroman@chromium.org changed reviewers:
+ mattm@chromium.org

[mattm, 2016-09-09 01:20:30]

lgtm

[commit-bot: I haz the power, 2016-09-09 02:53:00]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-09 02:53:01]

Dry run: This issue passed the CQ dry run.

[eroman, 2016-09-09 03:57:15]

The CQ bit was checked by eroman@chromium.org

[commit-bot: I haz the power, 2016-09-09 03:57:34]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-09 04:05:28]

Description was changed from

==========
Introduce CertErrors::ToDebugString().

This removes some duplicated code.

BUG=634443
==========

to

==========
Introduce CertErrors::ToDebugString().

This removes some duplicated code.

BUG=634443

Committed: https://crrev.com/00dba514371aaeae740c069266263a9544044b3d
Cr-Commit-Position: refs/heads/master@{#417498}
==========

[commit-bot: I haz the power, 2016-09-09 04:05:29]

Patchset 2 (id:??) landed as
https://crrev.com/00dba514371aaeae740c069266263a9544044b3d
Cr-Commit-Position: refs/heads/master@{#417498}