Fix incorrect use of unique_ptr found by PVS-Studio

Fix incorrect use of unique_ptr found by PVS-Studio

A run of PVS-Studio on Chrome reported various warnings including:
    V554 Incorrect use of unique_ptr. The memory allocated with 'new []'
    will be cleaned using 'delete'. install_util.cc 500

R=grt@chromium.org
BUG=697659
Review-Url: https://codereview.chromium.org/2727593003
Cr-Commit-Position: refs/heads/master@{#454555}
Committed: https://chromium.googlesource.com/chromium/src/+/e9dbe4d1324caf643ae7808a875c6fad254555a3

[brucedawson, 2017-03-01 23:41:36]

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

[commit-bot: I haz the power, 2017-03-01 23:42:25]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-02 00:36:25]

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

[commit-bot: I haz the power, 2017-03-02 00:36:25]

Dry run: This issue passed the CQ dry run.

[brucedawson, 2017-03-02 00:57:10]

PTAL

[grt (UTC plus 2), 2017-03-03 09:32:53]

The CQ bit was checked by grt@chromium.org

[grt (UTC plus 2), 2017-03-03 09:32:53]

lgtm

Thanks!

[commit-bot: I haz the power, 2017-03-03 09:33:05]

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

[commit-bot: I haz the power, 2017-03-03 10:06:23]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488533573383670, "parent_rev":
"cfb060c669c937702a4ede2d59ae71ae48aafdc3", "commit_rev":
"e9dbe4d1324caf643ae7808a875c6fad254555a3"}

[commit-bot: I haz the power, 2017-03-03 10:07:02]

Description was changed from

==========
Fix incorrect use of unique_ptr found by PVS-Studio

A run of PVS-Studio on Chrome reported various warnings including:
    V554 Incorrect use of unique_ptr. The memory allocated with 'new []'
    will be cleaned using 'delete'. install_util.cc 500

R=grt@chromium.org
BUG=697659
==========

to

==========
Fix incorrect use of unique_ptr found by PVS-Studio

A run of PVS-Studio on Chrome reported various warnings including:
    V554 Incorrect use of unique_ptr. The memory allocated with 'new []'
    will be cleaned using 'delete'. install_util.cc 500

R=grt@chromium.org
BUG=697659

Review-Url: https://codereview.chromium.org/2727593003
Cr-Commit-Position: refs/heads/master@{#454555}
Committed:
https://chromium.googlesource.com/chromium/src/+/e9dbe4d1324caf643ae7808a875c...
==========

[commit-bot: I haz the power, 2017-03-03 10:07:03]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/e9dbe4d1324caf643ae7808a875c...