Replace unique_ptr.reset/release with std::move

Replace unique_ptr.reset/release with std::move

R=gavinp@chromium.org
BUG=644626
Review-Url: https://codereview.chromium.org/2634513004
Cr-Commit-Position: refs/heads/master@{#445735}
Committed: https://chromium.googlesource.com/chromium/src/+/437df5cde1efb13ea51c97e4133c2fd1b1fd654c

[Sunny, 2017-01-13 16:56:32]

PTAL, thanks~

[gavinp, 2017-01-24 14:46:54]

The CQ bit was checked by gavinp@chromium.org

[gavinp, 2017-01-24 14:46:55]

lgtm

[commit-bot: I haz the power, 2017-01-24 14:47:09]

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, 2017-01-24 15:51:03]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485269214677810, "parent_rev":
"9c52cfae87e5a73e90ff006123a344df4c11af72", "commit_rev":
"437df5cde1efb13ea51c97e4133c2fd1b1fd654c"}

[commit-bot: I haz the power, 2017-01-24 15:51:35]

Description was changed from

==========
Replace unique_ptr.reset/release with std::move

R=gavinp@chromium.org
BUG=644626
==========

to

==========
Replace unique_ptr.reset/release with std::move

R=gavinp@chromium.org
BUG=644626

Review-Url: https://codereview.chromium.org/2634513004
Cr-Commit-Position: refs/heads/master@{#445735}
Committed:
https://chromium.googlesource.com/chromium/src/+/437df5cde1efb13ea51c97e4133c...
==========

[commit-bot: I haz the power, 2017-01-24 15:51:36]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/437df5cde1efb13ea51c97e4133c...