GN: Fix missing dep (//ui/gl:test_support) in message_center_unittests

GN: Fix missing dep (//ui/gl:test_support) in message_center_unittests

BUG=507294
Committed: https://crrev.com/97d6cabe072f028ec7601a4090f23fa4dc03a12d
Cr-Commit-Position: refs/heads/master@{#341272}

[agrieve, 2015-07-30 18:50:20]

agrieve@chromium.org changed reviewers:
+ sadrul@chromium.org

[sadrul, 2015-07-30 20:28:25]

lgtm

Looks like you are fixing a bunch of these issues. Might be a good idea to track
the work in a BUG=

[agrieve, 2015-07-31 01:21:28]

On 2015/07/30 20:28:25, sadrul wrote:
> lgtm
> 
> Looks like you are fixing a bunch of these issues. Might be a good idea to
track
> the work in a BUG=

Added the bug in.

[agrieve, 2015-07-31 01:21:33]

The CQ bit was checked by agrieve@chromium.org

[commit-bot: I haz the power, 2015-07-31 01:21:52]

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

[commit-bot: I haz the power, 2015-07-31 01:21:52]

This CL has an open dependency (Issue 1264493004 Patch 1). Please resolve the
dependency and try again.

[agrieve, 2015-07-31 02:15:30]

The CQ bit was checked by agrieve@chromium.org

[commit-bot: I haz the power, 2015-07-31 02:16:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1268513005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1268513005/1

[commit-bot: I haz the power, 2015-07-31 02:46:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-07-31 02:47:13]

Patchset 1 (id:??) landed as
https://crrev.com/97d6cabe072f028ec7601a4090f23fa4dc03a12d
Cr-Commit-Position: refs/heads/master@{#341272}