Ensure we pass on the --no-sandbox to the callstack browser tests when it's specified for TSAN.

Ensure we pass on the --no-sandbox to the callstack browser tests when it's specified for TSAN.

Also disable the tests for official builds, since we don't open the security holes required for symbolization there.

BUG=521465, 521554, 517488
TBR=scottmg@chromium.org

Committed: https://crrev.com/46eb503ebc9b6b7ecbd23f804cb81702ae252b6e
Cr-Commit-Position: refs/heads/master@{#343686}

[jam, 2015-08-17 15:19:42]

jam@chromium.org changed reviewers:
+ scottmg@chromium.org

[jam, 2015-08-17 15:20:01]

The CQ bit was checked by jam@chromium.org

[commit-bot: I haz the power, 2015-08-17 15:20:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1291343003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1291343003/1

[commit-bot: I haz the power, 2015-08-17 15:46:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-17 15:46:50]

Patchset 1 (id:??) landed as
https://crrev.com/46eb503ebc9b6b7ecbd23f804cb81702ae252b6e
Cr-Commit-Position: refs/heads/master@{#343686}

[scottmg, 2015-08-17 16:52:26]

lgtm