Linux sandbox: fix MIPS Android compilation bug.

Linux sandbox: fix MIPS Android compilation bug.

third_party/lss includes headers that are broken on Android.
Don't use LSS on Android and disable the corresponding test.

BUG=413635
Committed: https://crrev.com/e8d33a8991a9dce25aae84225d462083d3ec29c1
Cr-Commit-Position: refs/heads/master@{#294607}

[jln (very slow on Chromium), 2014-09-12 15:57:18]

jln@chromium.org changed reviewers:
+ mvanouwerkerk@chromium.org

[jln (very slow on Chromium), 2014-09-12 15:57:38]

PTAL (and send to CQ if you're happy with it)!

[Michael van Ouwerkerk, 2014-09-12 16:15:53]

Thanks Julien! lgtm

[Michael van Ouwerkerk, 2014-09-12 16:16:07]

The CQ bit was checked by mvanouwerkerk@chromium.org

[commit-bot: I haz the power, 2014-09-12 16:16:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/569633002/1

[commit-bot: I haz the power, 2014-09-12 17:04:26]

Committed patchset #1 (id:1) as 2fa44dbd6712f324ef5a6095521b97084263b950

[commit-bot: I haz the power, 2014-09-12 17:09:21]

Patchset 1 (id:??) landed as
https://crrev.com/e8d33a8991a9dce25aae84225d462083d3ec29c1
Cr-Commit-Position: refs/heads/master@{#294607}