Add myself and changwan@ to input/ OWNERS.

Add myself and changwan@ to input/ OWNERS.

BUG=

Committed: https://crrev.com/4e9288c70c1953c5f17bba476bd10679627519f4
Cr-Commit-Position: refs/heads/master@{#357150}

[aelias_OOO_until_Jul13, 2015-10-30 16:33:13]

aelias@chromium.org changed reviewers:
+ aurimas@chromium.org

[aelias_OOO_until_Jul13, 2015-10-30 16:33:13]

Hi Aurimas, now that Jared is leaving you're the sole OWNER in these
directories, and me and changwan@ know it pretty well now, so I think it's a
good time to add ourselves to OWNERS.  PTAL.

[aurimas (slooooooooow), 2015-10-30 17:24:08]

The CQ bit was checked by aurimas@chromium.org

[aurimas (slooooooooow), 2015-10-30 17:24:08]

lgtm

[commit-bot: I haz the power, 2015-10-30 17:25:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1427133002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1427133002/1

[commit-bot: I haz the power, 2015-10-30 18:44:28]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-30 18:45:49]

Patchset 1 (id:??) landed as
https://crrev.com/4e9288c70c1953c5f17bba476bd10679627519f4
Cr-Commit-Position: refs/heads/master@{#357150}