If a code space commit partially succeeds, free the memory

If a code space commit partially succeeds, free the memory

R=hpayer@chromium.org
BUG=

Committed: https://crrev.com/71a19439e8e596b93b2647756b3b60ddb2315edf
Cr-Commit-Position: refs/heads/master@{#27884}

[Erik Corry Chromium.org, 2015-04-16 10:07:12]

The CQ bit was checked by erikcorry@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-04-16 10:07:27]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1086253004/1

[commit-bot: I haz the power, 2015-04-16 10:11:54]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-04-16 10:11:55]

Try jobs failed on following builders:
  v8_presubmit on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/2052)

[Hannes Payer (out of office), 2015-04-16 13:26:14]

lgtm

[Erik Corry Chromium.org, 2015-04-16 13:26:45]

The CQ bit was checked by erikcorry@chromium.org

[commit-bot: I haz the power, 2015-04-16 13:26:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1086253004/1

[commit-bot: I haz the power, 2015-04-16 13:28:24]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-16 13:28:39]

Patchset 1 (id:??) landed as
https://crrev.com/71a19439e8e596b93b2647756b3b60ddb2315edf
Cr-Commit-Position: refs/heads/master@{#27884}