Reimplement EasyUnlock.StartupTimeFromSuspend metric.

Reimplement EasyUnlock.StartupTimeFromSuspend metric.

The metric in the app was broken for a while now. We will fix the metric
natively so we don't have to deal with app lifetime issues.

BUG=433697
Committed: https://crrev.com/06b9bfc16818e27a982e108053a880aea45a9f54
Cr-Commit-Position: refs/heads/master@{#308180}

[Tim Song, 2014-12-12 01:47:32]

Patchset #1 (id:1) has been deleted

[Tim Song, 2014-12-12 01:48:26]

tengs@chromium.org changed reviewers:
+ xiyuan@chromium.org

[Tim Song, 2014-12-12 01:48:46]

tengs@chromium.org changed reviewers:
+ isherman@chromium.org

[Ilya Sherman, 2014-12-12 01:54:43]

LGTM, thanks.  Please remember to also remove the metric from being recorded by
the app, so that we aren't logging it twice.

https://codereview.chromium.org/799623003/diff/20001/chrome/browser/signin/ea...
File chrome/browser/signin/easy_unlock_service.cc (right):

https://codereview.chromium.org/799623003/diff/20001/chrome/browser/signin/ea...
chrome/browser/signin/easy_unlock_service.cc:151: // Called when the remote
device has been authenticated to record the the time
nit: "the the" -> "the"

https://codereview.chromium.org/799623003/diff/20001/chrome/browser/signin/ea...
chrome/browser/signin/easy_unlock_service.cc:160: wake_up_time_ = base::Time();
nit: The indentation is off -- please adjust.

[xiyuan, 2014-12-12 02:01:54]

LGTM with isherman's comments addressed.

[Tim Song, 2014-12-12 02:12:19]

https://codereview.chromium.org/799623003/diff/20001/chrome/browser/signin/ea...
File chrome/browser/signin/easy_unlock_service.cc (right):

https://codereview.chromium.org/799623003/diff/20001/chrome/browser/signin/ea...
chrome/browser/signin/easy_unlock_service.cc:151: // Called when the remote
device has been authenticated to record the the time
On 2014/12/12 01:54:43, Ilya Sherman wrote:
> nit: "the the" -> "the"

Done.

https://codereview.chromium.org/799623003/diff/20001/chrome/browser/signin/ea...
chrome/browser/signin/easy_unlock_service.cc:160: wake_up_time_ = base::Time();
On 2014/12/12 01:54:43, Ilya Sherman wrote:
> nit: The indentation is off -- please adjust.

Done.

[Tim Song, 2014-12-12 20:01:27]

The CQ bit was checked by tengs@chromium.org

[commit-bot: I haz the power, 2014-12-12 20:02:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/799623003/60001

[commit-bot: I haz the power, 2014-12-12 22:19:31]

Committed patchset #3 (id:60001)

[commit-bot: I haz the power, 2014-12-12 22:20:26]

Patchset 3 (id:??) landed as
https://crrev.com/06b9bfc16818e27a982e108053a880aea45a9f54
Cr-Commit-Position: refs/heads/master@{#308180}