[arc] Don't bring up ScopedIPCSupport for unit tests

[arc] Don't bring up ScopedIPCSupport for unit tests

This is flakily crashing because it doesn't shut down
synchronously between tests, or so it seems.

Doesn't matter though because it's no longer necessary
for Mojo unless doing actual IPC.

R=lhchavez@chromium.org
BUG=None

Committed: https://crrev.com/46a3160d647f3bb7e72e2dbdefee108ea0e5e63a
Cr-Commit-Position: refs/heads/master@{#371663}

[Luis Héctor Chávez, 2016-01-27 00:34:48]

Bots seem happy. lgtm.

[Ken Rockot(use gerrit already), 2016-01-27 00:35:21]

The CQ bit was checked by rockot@chromium.org

[commit-bot: I haz the power, 2016-01-27 00:36:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1639023003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1639023003/1

[commit-bot: I haz the power, 2016-01-27 00:43:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-27 00:44:46]

Description was changed from

==========
[arc] Don't bring up ScopedIPCSupport for unit tests

This is flakily crashing because it doesn't shut down
synchronously between tests, or so it seems.

Doesn't matter though because it's no longer necessary
for Mojo unless doing actual IPC.

R=lhchavez@chromium.org
BUG=None
==========

to

==========
[arc] Don't bring up ScopedIPCSupport for unit tests

This is flakily crashing because it doesn't shut down
synchronously between tests, or so it seems.

Doesn't matter though because it's no longer necessary
for Mojo unless doing actual IPC.

R=lhchavez@chromium.org
BUG=None

Committed: https://crrev.com/46a3160d647f3bb7e72e2dbdefee108ea0e5e63a
Cr-Commit-Position: refs/heads/master@{#371663}
==========

[commit-bot: I haz the power, 2016-01-27 00:44:47]

Patchset 1 (id:??) landed as
https://crrev.com/46a3160d647f3bb7e72e2dbdefee108ea0e5e63a
Cr-Commit-Position: refs/heads/master@{#371663}