Add a missing dep of chromeos which was added recently.

Add a missing dep of chromeos which was added recently.

BUG=None
TBR=oshima@chromium.org, ygorshenin@chromium.org
TEST=manually

Committed: https://crrev.com/90459ba912044f40e56a17634e74d1001ddeed1e
Cr-Commit-Position: refs/heads/master@{#301568}

[Jun Mukai, 2014-10-28 04:45:02]

The CQ bit was checked by mukai@chromium.org

[commit-bot: I haz the power, 2014-10-28 04:46:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/683763002/1

[commit-bot: I haz the power, 2014-10-28 05:32:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-28 05:34:04]

Patchset 1 (id:??) landed as
https://crrev.com/90459ba912044f40e56a17634e74d1001ddeed1e
Cr-Commit-Position: refs/heads/master@{#301568}