ui/app_list: Add git cl format presubmit warning.

ui/app_list: Add git cl format presubmit warning.

Upon patch upload 'git cl format' is run on the diff and outputs a
warning if the diff has style violations, saving manual review
time for coding style.

BUG=None
TEST=None
R=xiyuan@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=251724

[xiyuan, 2014-02-17 07:49:59]

Should this be in a higher level such as src/ui/ or even src/?

[tfarina, 2014-02-17 18:07:00]

On 2014/02/17 07:49:59, xiyuan wrote:
> Should this be in a higher level such as src/ui/ or even src/?

I don't want to push this for the whole project. I want to push to small silos
for now where we have more control (see cc/ and apps/ for example). Do you mind
putting it on ui/app_list for now?

[xiyuan, 2014-02-17 18:15:06]

Okay. LGTM

[tfarina, 2014-02-18 02:29:27]

The CQ bit was checked by tfarina@chromium.org

[commit-bot: I haz the power, 2014-02-18 02:29:56]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tfarina@chromium.org/169003002/1

[commit-bot: I haz the power, 2014-02-18 03:54:17]

Change committed as 251724