Fix build error with gcc 4.9.3

Fix build error with gcc 4.9.3

native_backend_kwallet_x.cc:391:1:
  error: control reaches end of non-void function [-Werror=return-type]

Regression introduced by https://codereview.chromium.org/2057123002

BUG=602624
R=vabr@chromium.org

Committed: https://crrev.com/450339b9492844c74ba3b07aebca7d6c5770b984
Cr-Commit-Position: refs/heads/master@{#401601}

[Julien Isorce Samsung, 2016-06-23 13:04:26]

The CQ bit was checked by j.isorce@samsung.com to run a CQ dry run

[commit-bot: I haz the power, 2016-06-23 13:04:34]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2090343002/1

[commit-bot: I haz the power, 2016-06-23 13:58:02]

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

[commit-bot: I haz the power, 2016-06-23 13:58:02]

Dry run: This issue passed the CQ dry run.

[Julien Isorce Samsung, 2016-06-23 14:09:01]

On 2016/06/23 13:58:02, commit-bot: I haz the power wrote:
> Dry run: This issue passed the CQ dry run.

Hi, plz have a look. Thx.

[vabr (Chromium), 2016-06-23 14:26:32]

On 2016/06/23 14:09:01, Julien Isorce wrote:
> On 2016/06/23 13:58:02, commit-bot: I haz the power wrote:
> > Dry run: This issue passed the CQ dry run.
> 
> Hi, plz have a look. Thx.

Thanks a lot, this LGTM, although https://codereview.chromium.org/2097503002/
has just been dealing with the same problem.

I like the NOTREACHED() here, so let's try to land this one.

Thanks!

Vaclav

[vabr (Chromium), 2016-06-23 14:26:38]

The CQ bit was checked by vabr@chromium.org

[commit-bot: I haz the power, 2016-06-23 14:26:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2090343002/1

[commit-bot: I haz the power, 2016-06-23 14:31:00]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-23 14:34:29]

Description was changed from

==========
Fix build error with gcc 4.9.3

native_backend_kwallet_x.cc:391:1:
  error: control reaches end of non-void function [-Werror=return-type]

Regression introduced by https://codereview.chromium.org/2057123002

BUG=602624

R=vabr@chromium.org
==========

to

==========
Fix build error with gcc 4.9.3

native_backend_kwallet_x.cc:391:1:
  error: control reaches end of non-void function [-Werror=return-type]

Regression introduced by https://codereview.chromium.org/2057123002

BUG=602624

R=vabr@chromium.org

Committed: https://crrev.com/450339b9492844c74ba3b07aebca7d6c5770b984
Cr-Commit-Position: refs/heads/master@{#401601}
==========

[commit-bot: I haz the power, 2016-06-23 14:34:30]

Patchset 1 (id:??) landed as
https://crrev.com/450339b9492844c74ba3b07aebca7d6c5770b984
Cr-Commit-Position: refs/heads/master@{#401601}