Revert of Remove bad comment in HasSignBit

Revert of Remove bad comment in HasSignBit (patchset #1 id:1 of https://codereview.chromium.org/2562643005/ )

Reason for revert:
The original change was not actually a performance improvement.

Original issue's description:
> Remove bad comment in HasSignBit
>
> Remove a bad comment left behind from crrev.com/437342
> TBR=scottmg
> R=scottmg
> NOTRY=true
>
> Committed: https://crrev.com/6b15c686879f6747935a517f74f579f7ae46d797
> Cr-Commit-Position: refs/heads/master@{#437416}

TBR=scottmg@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/28c208fcaf6848fc6b429bfeb362de83383302fd
Cr-Commit-Position: refs/heads/master@{#437579}

[jschuh, 2016-12-09 17:35:24]

The CQ bit was checked by jschuh@chromium.org

[jschuh, 2016-12-09 17:35:24]

Created Revert of Remove bad comment in HasSignBit

[commit-bot: I haz the power, 2016-12-09 17:35:59]

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, 2016-12-09 17:37:30]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481304924485400, "parent_rev":
"041b668c4a9251ce7f815be310df34e1d3609f27", "commit_rev":
"ac6e0031e7a91e8197d05a0387d952a350501127"}

[commit-bot: I haz the power, 2016-12-09 17:38:00]

Description was changed from

==========
Revert of Remove bad comment in HasSignBit (patchset #1 id:1 of
https://codereview.chromium.org/2562643005/ )

Reason for revert:
The original change was not actually a performance improvement.

Original issue's description:
> Remove bad comment in HasSignBit
> 
> Remove a bad comment left behind from crrev.com/437342
> TBR=scottmg
> R=scottmg
> NOTRY=true
> 
> Committed: https://crrev.com/6b15c686879f6747935a517f74f579f7ae46d797
> Cr-Commit-Position: refs/heads/master@{#437416}

TBR=scottmg@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Remove bad comment in HasSignBit (patchset #1 id:1 of
https://codereview.chromium.org/2562643005/ )

Reason for revert:
The original change was not actually a performance improvement.

Original issue's description:
> Remove bad comment in HasSignBit
> 
> Remove a bad comment left behind from crrev.com/437342
> TBR=scottmg
> R=scottmg
> NOTRY=true
> 
> Committed: https://crrev.com/6b15c686879f6747935a517f74f579f7ae46d797
> Cr-Commit-Position: refs/heads/master@{#437416}

TBR=scottmg@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2559183004
==========

[commit-bot: I haz the power, 2016-12-09 17:38:01]

Committed patchset #1 (id:1)

[scottmg, 2016-12-09 18:25:09]

lgtm

[commit-bot: I haz the power, 2016-12-12 14:35:57]

Description was changed from

==========
Revert of Remove bad comment in HasSignBit (patchset #1 id:1 of
https://codereview.chromium.org/2562643005/ )

Reason for revert:
The original change was not actually a performance improvement.

Original issue's description:
> Remove bad comment in HasSignBit
> 
> Remove a bad comment left behind from crrev.com/437342
> TBR=scottmg
> R=scottmg
> NOTRY=true
> 
> Committed: https://crrev.com/6b15c686879f6747935a517f74f579f7ae46d797
> Cr-Commit-Position: refs/heads/master@{#437416}

TBR=scottmg@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2559183004
==========

to

==========
Revert of Remove bad comment in HasSignBit (patchset #1 id:1 of
https://codereview.chromium.org/2562643005/ )

Reason for revert:
The original change was not actually a performance improvement.

Original issue's description:
> Remove bad comment in HasSignBit
>
> Remove a bad comment left behind from crrev.com/437342
> TBR=scottmg
> R=scottmg
> NOTRY=true
>
> Committed: https://crrev.com/6b15c686879f6747935a517f74f579f7ae46d797
> Cr-Commit-Position: refs/heads/master@{#437416}

TBR=scottmg@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/28c208fcaf6848fc6b429bfeb362de83383302fd
Cr-Commit-Position: refs/heads/master@{#437579}
==========

[commit-bot: I haz the power, 2016-12-12 14:35:57]

Patchset 1 (id:??) landed as
https://crrev.com/28c208fcaf6848fc6b429bfeb362de83383302fd
Cr-Commit-Position: refs/heads/master@{#437579}