Makes it so we don't start watchdog when running under debugger

Makes it so we don't start watchdog when running under debugger

There is nothing worse than stepping through the debugger and suddenly
hitting the watchdog timer DCHECK. If you're running under a debugger
seems like you don't care about the watchdog thread. So, make it so we
don't start watchdog in this case.

BUG=none
TEST=none
R=rtenneti@chromium.org

Committed: https://crrev.com/d9875966d9cf432f2f4cb8ca1d8dda9ee5cec701
Cr-Commit-Position: refs/heads/master@{#297071}

[ramant (doing other things), 2014-09-18 18:09:28]

lgtm

[ramant (doing other things), 2014-09-18 18:09:54]

On 2014/09/18 18:09:28, ramant wrote:
> lgtm

Thanks sky,
raman

[sky, 2014-09-18 18:11:11]

The CQ bit was checked by sky@chromium.org

[commit-bot: I haz the power, 2014-09-18 18:12:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/573683003/1

[commit-bot: I haz the power, 2014-09-18 20:14:55]

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

[commit-bot: I haz the power, 2014-09-18 20:14:56]

Exceeded time limit waiting for builds to trigger.

[sky, 2014-09-26 23:08:24]

The CQ bit was checked by sky@chromium.org

[commit-bot: I haz the power, 2014-09-26 23:08:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/573683003/1

[commit-bot: I haz the power, 2014-09-26 23:35:48]

Committed patchset #1 (id:1) as 9c94c89487677dab6447327c54509dc238ae1131

[commit-bot: I haz the power, 2014-09-26 23:36:33]

Patchset 1 (id:??) landed as
https://crrev.com/d9875966d9cf432f2f4cb8ca1d8dda9ee5cec701
Cr-Commit-Position: refs/heads/master@{#297071}