Check last modification time on overinstall for all dev builds.

Check last modification time on overinstall  for all dev builds.

This makes the build/test cycle easier for Release builds.

BUG=none
R=brucedawson@chromium.org

Committed: https://crrev.com/cf06ae59a8f2c350d8556b3a83a5c14a7f1142e9
Cr-Commit-Position: refs/heads/master@{#330558}

[grt (UTC plus 2), 2015-05-19 15:02:03]

The CQ bit was checked by grt@chromium.org to run a CQ dry run

[grt (UTC plus 2), 2015-05-19 15:02:30]

This should ease your life a bit.

[commit-bot: I haz the power, 2015-05-19 15:02:56]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1144543008/1

[grt (UTC plus 2), 2015-05-19 15:03:27]

+CC robertshield

[commit-bot: I haz the power, 2015-05-19 16:57:07]

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

[commit-bot: I haz the power, 2015-05-19 16:57:10]

Dry run: This issue passed the CQ dry run.

[brucedawson, 2015-05-19 17:28:21]

Yes! That should smooth my testing process nicely. Thanks.

lgtm

[grt (UTC plus 2), 2015-05-19 18:03:24]

The CQ bit was checked by grt@chromium.org

[commit-bot: I haz the power, 2015-05-19 18:04:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1144543008/1

[commit-bot: I haz the power, 2015-05-19 18:10:56]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-19 18:11:49]

Patchset 1 (id:??) landed as
https://crrev.com/cf06ae59a8f2c350d8556b3a83a5c14a7f1142e9
Cr-Commit-Position: refs/heads/master@{#330558}