Include host-logs in browser-test results even if all tests pass.

Include host-logs in browser-test results even if all tests pass.
This should help with diff-ing the contents of the host-logs when tests fail.

BUG=

Committed: https://crrev.com/e4c54fe6041397016df320b61efe0ae34122c894
Cr-Commit-Position: refs/heads/master@{#321901}

[anandc, 2015-03-23 21:53:15]

anandc@chromium.org changed reviewers:
+ jamiewalch@chromium.org

[anandc, 2015-03-23 21:53:15]

Jamie, PTAL. Thanks.

[Jamie, 2015-03-23 22:35:33]

lgtm

[anandc, 2015-03-23 22:59:40]

The CQ bit was checked by anandc@chromium.org

[commit-bot: I haz the power, 2015-03-23 23:00:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1016273004/1

[commit-bot: I haz the power, 2015-03-23 23:49:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-23 23:51:10]

Patchset 1 (id:??) landed as
https://crrev.com/e4c54fe6041397016df320b61efe0ae34122c894
Cr-Commit-Position: refs/heads/master@{#321901}