ozone: evdev: Unsquelch some real errors in release

ozone: evdev: Unsquelch some real errors in release

These are currently DLOG() but we really shouldn't be hiding them. Also
use PLOG() when we know errno will be set.

BUG=none
TEST=build

Committed: https://crrev.com/70e0d2d604500f0f46ac07c68720d9caf6399963
Cr-Commit-Position: refs/heads/master@{#322599}

[spang, 2015-03-25 22:56:18]

spang@chromium.org changed reviewers:
+ kpschoedel@chromium.org

[kpschoedel, 2015-03-26 14:48:45]

lgtm

[spang, 2015-03-26 15:17:49]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2015-03-26 15:18:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1032233002/1

[commit-bot: I haz the power, 2015-03-26 15:20:45]

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

[commit-bot: I haz the power, 2015-03-26 15:20:47]

Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)

[spang, 2015-03-26 15:43:47]

The CQ bit was checked by spang@chromium.org

[spang, 2015-03-26 15:43:56]

The CQ bit was unchecked by spang@chromium.org

[spang, 2015-03-27 17:14:56]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2015-03-27 17:15:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1032233002/1

[commit-bot: I haz the power, 2015-03-27 17:42:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-27 17:43:44]

Patchset 1 (id:??) landed as
https://crrev.com/70e0d2d604500f0f46ac07c68720d9caf6399963
Cr-Commit-Position: refs/heads/master@{#322599}