Revert changes to startup_metric_utils.cc.

Revert changes to startup_metric_utils.cc.

I recently enabled some code on OS X that lets startup_metric_utils.cc set the
thread priority (https://codereview.chromium.org/1620673003/). This is most
likely responsible for a performance regression.

BUG=595043
Committed: https://crrev.com/a5ce8d5bc18a08f44528b32ee8507dbb6982cf7d
Cr-Commit-Position: refs/heads/master@{#384113}

[erikchen, 2016-03-29 21:01:34]

erikchen@chromium.org changed reviewers:
+ robliao@chromium.org

[erikchen, 2016-03-29 21:01:35]

robliao: Please review.

[robliao, 2016-03-29 22:32:26]

Non-owner LGTM

[erikchen, 2016-03-30 16:41:57]

The CQ bit was checked by erikchen@chromium.org

[commit-bot: I haz the power, 2016-03-30 16:42:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1838173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1838173003/1

[commit-bot: I haz the power, 2016-03-30 17:04:41]

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

[commit-bot: I haz the power, 2016-03-30 17:04:42]

Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[erikchen, 2016-03-30 21:07:35]

Patchset #2 (id:20001) has been deleted

[erikchen, 2016-03-30 21:09:48]

The CQ bit was checked by erikchen@chromium.org

[erikchen, 2016-03-30 21:09:48]

The patchset sent to the CQ was uploaded after l-g-t-m from robliao@chromium.org
Link to the patchset: https://codereview.chromium.org/1838173003/#ps40001
(title: " ")

[commit-bot: I haz the power, 2016-03-30 21:10:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1838173003/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1838173003/40001

[commit-bot: I haz the power, 2016-03-30 22:10:43]

Committed patchset #2 (id:40001)

[commit-bot: I haz the power, 2016-03-30 22:12:23]

Description was changed from

==========
Revert changes to startup_metric_utils.cc.

I recently enabled some code on OS X that lets startup_metric_utils.cc set the
thread priority (https://codereview.chromium.org/1620673003/). This is most
likely responsible for a performance regression.

BUG=595043
==========

to

==========
Revert changes to startup_metric_utils.cc.

I recently enabled some code on OS X that lets startup_metric_utils.cc set the
thread priority (https://codereview.chromium.org/1620673003/). This is most
likely responsible for a performance regression.

BUG=595043

Committed: https://crrev.com/a5ce8d5bc18a08f44528b32ee8507dbb6982cf7d
Cr-Commit-Position: refs/heads/master@{#384113}
==========

[commit-bot: I haz the power, 2016-03-30 22:12:24]

Patchset 2 (id:??) landed as
https://crrev.com/a5ce8d5bc18a08f44528b32ee8507dbb6982cf7d
Cr-Commit-Position: refs/heads/master@{#384113}

[gab, 2016-04-07 00:56:31]

gab@chromium.org changed reviewers:
+ gab@chromium.org

[gab, 2016-04-07 00:56:32]

Mini-request + made comments on bug.

https://codereview.chromium.org/1838173003/diff/40001/components/startup_metr...
File components/startup_metric_utils/browser/startup_metric_utils.cc (right):

https://codereview.chromium.org/1838173003/diff/40001/components/startup_metr...
components/startup_metric_utils/browser/startup_metric_utils.cc:273: // thread
priority APIs (crbug.com/554651).
Please update this comment.

[gab, 2016-04-11 15:15:41]

On 2016/04/07 00:56:32, gab wrote:
> Mini-request + made comments on bug.
> 
>
https://codereview.chromium.org/1838173003/diff/40001/components/startup_metr...
> File components/startup_metric_utils/browser/startup_metric_utils.cc (right):
> 
>
https://codereview.chromium.org/1838173003/diff/40001/components/startup_metr...
> components/startup_metric_utils/browser/startup_metric_utils.cc:273: // thread
> priority APIs (crbug.com/554651).
> Please update this comment.

ping, thanks