Revert of Swarm cc_unittests.

Revert of Swarm cc_unittests. (patchset #6 id:100001 of https://codereview.chromium.org/854743002/)

Reason for revert:
Failures on chrome.mac

Original issue's description:
> Swarm cc_unittests.
>
> BUG=448877
>
> Committed: https://crrev.com/9086ff0072268267bacf28e6098a7b5bd8478982
> Cr-Commit-Position: refs/heads/master@{#312252}

TBR=maruel@chromium.org,alexst@chromium.org,jam@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=448877
Committed: https://crrev.com/c497f3788bc5007ee3bbe2f6aa1cc101b6d66d8b
Cr-Commit-Position: refs/heads/master@{#312322}

[sergeyv, 2015-01-21 13:33:53]

Created Revert of Swarm cc_unittests.

[commit-bot: I haz the power, 2015-01-21 13:37:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/861173002/1

[commit-bot: I haz the power, 2015-01-21 13:40:10]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-21 13:41:11]

Patchset 1 (id:??) landed as
https://crrev.com/c497f3788bc5007ee3bbe2f6aa1cc101b6d66d8b
Cr-Commit-Position: refs/heads/master@{#312322}

[jam, 2015-01-27 17:21:19]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/880803004/ by jam@chromium.org.

The reason for reverting is: just saw this revert. can't find sergeyv online,
and don't see information on what broke. so reverting the revert and watching
the tree..