BatteryStatus: fix chargingTime() to follow the specification.

BatteryStatus: fix chargingTime() to follow the specification.

If the battery status is unknown, the charging time should be
0 instead of Infinity. The reason being that in that case, the
battery status is reflected as a plugged and fully charged battery.

BUG=122593
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=170338

[abarth-chromium, 2014-03-27 20:47:19]

BUG=TODO  <--- ?

Maybe just remove that line?  I might add some explanation about what behavior
you're changing to follow the specification.

[abarth-chromium, 2014-03-27 20:47:58]

LGTM w/ improved description

[mlamouri (slow - plz ping), 2014-03-28 14:00:27]

The CQ bit was checked by mlamouri@chromium.org

[commit-bot: I haz the power, 2014-03-28 14:00:33]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mlamouri@chromium.org/203693003/20001

[commit-bot: I haz the power, 2014-03-28 14:32:23]

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

[commit-bot: I haz the power, 2014-03-28 14:32:24]

Try jobs failed on following builders:
  tryserver.blink on win_blink_rel

[mlamouri (slow - plz ping), 2014-03-28 14:49:31]

The CQ bit was checked by mlamouri@chromium.org

[commit-bot: I haz the power, 2014-03-28 14:49:36]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mlamouri@chromium.org/203693003/20001

[commit-bot: I haz the power, 2014-03-28 14:59:49]

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

[commit-bot: I haz the power, 2014-03-28 14:59:50]

Try jobs failed on following builders:
  tryserver.blink on win_blink_rel

[mlamouri (slow - plz ping), 2014-03-28 15:00:34]

The CQ bit was checked by mlamouri@chromium.org

[commit-bot: I haz the power, 2014-03-28 15:00:37]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mlamouri@chromium.org/203693003/20001

[commit-bot: I haz the power, 2014-03-28 15:26:19]

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

[commit-bot: I haz the power, 2014-03-28 15:26:19]

Try jobs failed on following builders:
  tryserver.blink on win_blink_rel

[mlamouri (slow - plz ping), 2014-03-28 15:43:17]

The CQ bit was checked by mlamouri@chromium.org

[commit-bot: I haz the power, 2014-03-28 15:43:21]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mlamouri@chromium.org/203693003/20001

[commit-bot: I haz the power, 2014-03-28 16:17:41]

Change committed as 170338