Revert of DevTools: Make curtain handle dragging work again in Timeline overview

Revert of DevTools: Make curtain handle dragging work again in Timeline overview (patchset #1 id:1 of https://codereview.chromium.org/2471553002/ )

Reason for revert:
I'll reland it after the reformat.

Original issue's description:
> DevTools: Make curtain handle dragging work again in Timeline overview
>
> Committed: https://crrev.com/bb6a29b2d089961599eaa80bf3bf43ea1f11a734
> Cr-Commit-Position: refs/heads/master@{#429083}

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

Committed: https://crrev.com/bc6e8d9b7915c7d55ac7d5239eaaf818f6512339
Cr-Commit-Position: refs/heads/master@{#429098}

[pfeldman, 2016-11-01 20:26:29]

The CQ bit was checked by pfeldman@chromium.org

[pfeldman, 2016-11-01 20:26:30]

Created Revert of DevTools: Make curtain handle dragging work again in Timeline
overview

[commit-bot: I haz the power, 2016-11-01 20:27:09]

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, 2016-11-01 20:42:10]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-01 20:45:39]

Description was changed from

==========
Revert of DevTools: Make curtain handle dragging work again in Timeline overview
(patchset #1 id:1 of https://codereview.chromium.org/2471553002/ )

Reason for revert:
I'll reland it after the reformat.

Original issue's description:
> DevTools: Make curtain handle dragging work again in Timeline overview
> 
> Committed: https://crrev.com/bb6a29b2d089961599eaa80bf3bf43ea1f11a734
> Cr-Commit-Position: refs/heads/master@{#429083}

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

to

==========
Revert of DevTools: Make curtain handle dragging work again in Timeline overview
(patchset #1 id:1 of https://codereview.chromium.org/2471553002/ )

Reason for revert:
I'll reland it after the reformat.

Original issue's description:
> DevTools: Make curtain handle dragging work again in Timeline overview
>
> Committed: https://crrev.com/bb6a29b2d089961599eaa80bf3bf43ea1f11a734
> Cr-Commit-Position: refs/heads/master@{#429083}

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

Committed: https://crrev.com/bc6e8d9b7915c7d55ac7d5239eaaf818f6512339
Cr-Commit-Position: refs/heads/master@{#429098}
==========

[commit-bot: I haz the power, 2016-11-01 20:45:40]

Patchset 1 (id:??) landed as
https://crrev.com/bc6e8d9b7915c7d55ac7d5239eaaf818f6512339
Cr-Commit-Position: refs/heads/master@{#429098}