Add asvitkine to chrome/browser/metrics/OWNERS.

Add asvitkine to chrome/browser/metrics/OWNERS.

I'm now very familiar with the MetricsService code
and believe it makes sense for me to become an
OWNER here.

BUG=none

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=255966

[Alexei Svitkine (slow), 2014-03-07 22:37:41]

Hey Jim and Ilya,

Let me know if this sg to you or not. Thanks!

[jar (doing other things), 2014-03-08 02:44:56]

SVGTM!!!! :-)

LGTM

Thanks!

[Alexei Svitkine (slow), 2014-03-08 03:03:50]

The CQ bit was checked by asvitkine@chromium.org

[commit-bot: I haz the power, 2014-03-08 11:20:17]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/asvitkine@chromium.org/191003004/1

[commit-bot: I haz the power, 2014-03-08 14:06:11]

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

[commit-bot: I haz the power, 2014-03-08 14:06:12]

Retried try job too often on mac_rel for step(s) telemetry_perf_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[Alexei Svitkine (slow), 2014-03-10 14:09:38]

The CQ bit was checked by asvitkine@chromium.org

[commit-bot: I haz the power, 2014-03-10 14:16:34]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/asvitkine@chromium.org/191003004/1

[commit-bot: I haz the power, 2014-03-10 15:21:29]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/asvitkine@chromium.org/191003004/1

[commit-bot: I haz the power, 2014-03-10 17:32:34]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/asvitkine@chromium.org/191003004/1

[commit-bot: I haz the power, 2014-03-10 17:57:01]

Change committed as 255966

[Ilya Sherman, 2014-03-10 22:33:11]

LGTM2.  Thanks, Alexei :)