Fixing memory leak in TurnServer.

Fixing memory leak in TurnServer.

If the test TURN server received two allocate requests from the same
address, it was replacing the old allocation but not deleting it.

Also switching to std::unique_ptr to make it less likely for this to
pop up again.

Committed: https://crrev.com/9794366ff0d8aa2cc4b07a130bae7d4987b232f7
Cr-Commit-Position: refs/heads/master@{#13449}

[Taylor Brandstetter, 2016-07-01 18:07:10]

deadbeef@webrtc.org changed reviewers:
+ honghaiz@webrtc.org, pthatcher@webrtc.org

[honghaiz3, 2016-07-01 18:43:55]

lgtm

[pthatcher1, 2016-07-01 20:35:04]

lgtm

[Taylor Brandstetter, 2016-07-12 16:28:00]

The CQ bit was checked by deadbeef@webrtc.org

[commit-bot: I haz the power, 2016-07-12 16:28:09]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2016-07-12 18:04:55]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-12 18:04:57]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-12 18:05:09]

Description was changed from

==========
Fixing memory leak in TurnServer.

If the test TURN server received two allocate requests from the same
address, it was replacing the old allocation but not deleting it.

Also switching to std::unique_ptr to make it less likely for this to
pop up again.
==========

to

==========
Fixing memory leak in TurnServer.

If the test TURN server received two allocate requests from the same
address, it was replacing the old allocation but not deleting it.

Also switching to std::unique_ptr to make it less likely for this to
pop up again.

Committed: https://crrev.com/9794366ff0d8aa2cc4b07a130bae7d4987b232f7
Cr-Commit-Position: refs/heads/master@{#13449}
==========

[commit-bot: I haz the power, 2016-07-12 18:05:10]

Patchset 1 (id:??) landed as
https://crrev.com/9794366ff0d8aa2cc4b07a130bae7d4987b232f7
Cr-Commit-Position: refs/heads/master@{#13449}