Get SIGTERM when parent process dies.

Get SIGTERM when parent process dies.

Cast shell needs to exist when the parent process dies.

BUG=internal b/19182288

Committed: https://crrev.com/93ae819382c85b70a511fac5831a1cdeb233d22d
Cr-Commit-Position: refs/heads/master@{#315356}

[byungchul, 2015-02-09 17:48:28]

byungchul@chromium.org changed reviewers:
+ gunsch@chromium.org, lcwu@chromium.org, wzhong@chromium.org

[byungchul, 2015-02-09 17:50:56]

byungchul@chromium.org changed reviewers:
+ maclellant@chromium.org

[gunsch, 2015-02-09 18:03:15]

On 2015/02/09 17:50:56, byungchul wrote:

lgtm, I assume this builds on Android as well?

[byungchul, 2015-02-09 18:19:31]

The CQ bit was checked by byungchul@chromium.org

[byungchul, 2015-02-09 18:19:42]

On 2015/02/09 18:03:15, gunsch wrote:
> On 2015/02/09 17:50:56, byungchul wrote:
> 
> lgtm, I assume this builds on Android as well?

Yes, verified.

[commit-bot: I haz the power, 2015-02-09 18:20:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/872073005/1

[commit-bot: I haz the power, 2015-02-09 18:58:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-09 18:58:55]

Patchset 1 (id:??) landed as
https://crrev.com/93ae819382c85b70a511fac5831a1cdeb233d22d
Cr-Commit-Position: refs/heads/master@{#315356}