Work around Clang's new -Wmismatched-new-delete warning.

Work around Clang's new -Wmismatched-new-delete warning.

In r237368, Clang started warning about mismatched operator new[] and delete
calls. This pacifies the warning by moving the operator new-call to a separate
function.

BUG=none

Committed: https://crrev.com/cd4cce344c866b73cd7d883423f4568ab6910456
Cr-Commit-Position: refs/heads/master@{#330528}

[hans, 2015-05-14 21:01:30]

hans@chromium.org changed reviewers:
+ thakis@chromium.org

[hans, 2015-05-14 21:01:31]

Please take a look.

[Nico, 2015-05-14 21:05:40]

lgtm

[hans, 2015-05-19 15:47:47]

The warning re-landed in Clang in 237608. Let's commit this.

[hans, 2015-05-19 15:47:51]

The CQ bit was checked by hans@chromium.org

[commit-bot: I haz the power, 2015-05-19 15:49:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1131513006/1

[commit-bot: I haz the power, 2015-05-19 17:03:24]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-19 17:05:40]

Patchset 1 (id:??) landed as
https://crrev.com/cd4cce344c866b73cd7d883423f4568ab6910456
Cr-Commit-Position: refs/heads/master@{#330528}