Install warning message for extensions that use chrome.mdns API.

Install warning message for extensions that use chrome.mdns API.

BUG=451526
Committed: https://crrev.com/771d3a91dee58af8bf7bd0f3d3fc909c44ddeb51
Cr-Commit-Position: refs/heads/master@{#321500}

[Red Daly, 2015-03-17 18:41:55]

reddaly@chromium.org changed reviewers:
+ mfoltz@chromium.org

[mark a. foltz, 2015-03-19 00:00:08]

lgtm but you will need an OWNER for extensions

[Red Daly, 2015-03-20 01:32:57]

The CQ bit was checked by reddaly@chromium.org

[Red Daly, 2015-03-20 01:32:57]

The patchset sent to the CQ was uploaded after l-g-t-m from mfoltz@chromium.org
Link to the patchset: https://codereview.chromium.org/1012173002/#ps20001
(title: "Remove install message code but leave .grd for new string")

[commit-bot: I haz the power, 2015-03-20 01:33:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1012173002/20001

[Red Daly, 2015-03-20 01:35:37]

On 2015/03/20 01:33:31, I haz the power (commit-bot) wrote:
> CQ is trying da patch. Follow status at
>  https://chromium-cq-status.appspot.com/patch-status/1012173002/20001

I'm in a rush so get the string checked in so it can be translated.  I reverted
the code for which I don't have OWNERS and am trying to commit the string file
only.

[commit-bot: I haz the power, 2015-03-20 02:28:44]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-20 02:30:08]

Patchset 2 (id:??) landed as
https://crrev.com/771d3a91dee58af8bf7bd0f3d3fc909c44ddeb51
Cr-Commit-Position: refs/heads/master@{#321500}