Remove unnecessary powersaveblocker in download_browsertests.cc

Remove unnecessary powersaveblocker in download_browsertests.cc

BUG=689410
Review-Url: https://codereview.chromium.org/2889533002
Cr-Commit-Position: refs/heads/master@{#472657}
Committed: https://chromium.googlesource.com/chromium/src/+/a58f2e80c253a8586f789c6bfc77432015e47e40

[ke.he, 2017-05-16 08:56:58]

The CQ bit was checked by ke.he@intel.com to run a CQ dry run

[commit-bot: I haz the power, 2017-05-16 08:57:15]

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, 2017-05-16 09:40:10]

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

[commit-bot: I haz the power, 2017-05-16 09:40:11]

Dry run: This issue passed the CQ dry run.

[ke.he, 2017-05-16 10:02:44]

ke.he@intel.com changed reviewers:
+ dtrainor@chromium.org

[ke.he, 2017-05-16 10:02:45]

Hi, Dtrainor@, PTAL? Thanks!

[David Trainor- moved to gerrit, 2017-05-17 16:48:36]

lgtm

[ke.he, 2017-05-18 02:52:40]

The CQ bit was checked by ke.he@intel.com

[commit-bot: I haz the power, 2017-05-18 02:54:46]

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, 2017-05-18 04:17:00]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495075960679090, "parent_rev":
"6b4206cfc1451d586c5cf8bf1df0eab65ab72c93", "commit_rev":
"a58f2e80c253a8586f789c6bfc77432015e47e40"}

[commit-bot: I haz the power, 2017-05-18 04:17:11]

Description was changed from

==========
Remove unnecessary powersaveblocker in download_browsertests.cc

BUG=689410
==========

to

==========
Remove unnecessary powersaveblocker in download_browsertests.cc

BUG=689410

Review-Url: https://codereview.chromium.org/2889533002
Cr-Commit-Position: refs/heads/master@{#472657}
Committed:
https://chromium.googlesource.com/chromium/src/+/a58f2e80c253a8586f789c6bfc77...
==========

[commit-bot: I haz the power, 2017-05-18 04:17:12]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/a58f2e80c253a8586f789c6bfc77...