Revert of Clean up some NativeTheme code.

Revert of Clean up some NativeTheme code. (patchset #1 id:1 of https://codereview.chromium.org/2485013002/ )

Reason for revert:
Apparently CQ landed this CL twice. Tried reverting it once to see what happens.

Original issue's description:
> Reland of Clean up some NativeTheme code.
>  ( https://codereview.chromium.org/2480993002/ )
>
> Now with appropriate use of break in switch statement.
>
> Original issue's description:
> > Clean up some NativeTheme code.
> >
> > - improve instantiation
> > - allow to specify separate instances for web and native
> > - two NativeThemeAura instances coexist for w/wo overlay scrollbars
> >
> > BUG=307091
>
> Committed: https://crrev.com/93ed99a0238f25fe391874d3f6dfa02c01acb781
> Cr-Commit-Position: refs/heads/master@{#430608}

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

Committed: https://crrev.com/16a00aca0642af4f75ed4c68f662e68f590c6cef
Cr-Commit-Position: refs/heads/master@{#430610}

[xlai (Olivia), 2016-11-08 14:48:54]

The CQ bit was checked by xlai@chromium.org

[xlai (Olivia), 2016-11-08 14:48:55]

Created Revert of Clean up some NativeTheme code.

[commit-bot: I haz the power, 2016-11-08 14:49:09]

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, 2016-11-08 14:50:25]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-08 14:53:39]

Description was changed from

==========
Revert of Clean up some NativeTheme code. (patchset #1 id:1 of
https://codereview.chromium.org/2485013002/ )

Reason for revert:
Apparently CQ landed this CL twice. Tried reverting it once to see what happens.

Original issue's description:
> Reland of Clean up some NativeTheme code.
>  ( https://codereview.chromium.org/2480993002/ )
> 
> Now with appropriate use of break in switch statement.
> 
> Original issue's description:
> > Clean up some NativeTheme code.
> >
> > - improve instantiation
> > - allow to specify separate instances for web and native
> > - two NativeThemeAura instances coexist for w/wo overlay scrollbars
> >
> > BUG=307091
> 
> Committed: https://crrev.com/93ed99a0238f25fe391874d3f6dfa02c01acb781
> Cr-Commit-Position: refs/heads/master@{#430608}

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

to

==========
Revert of Clean up some NativeTheme code. (patchset #1 id:1 of
https://codereview.chromium.org/2485013002/ )

Reason for revert:
Apparently CQ landed this CL twice. Tried reverting it once to see what happens.

Original issue's description:
> Reland of Clean up some NativeTheme code.
>  ( https://codereview.chromium.org/2480993002/ )
>
> Now with appropriate use of break in switch statement.
>
> Original issue's description:
> > Clean up some NativeTheme code.
> >
> > - improve instantiation
> > - allow to specify separate instances for web and native
> > - two NativeThemeAura instances coexist for w/wo overlay scrollbars
> >
> > BUG=307091
>
> Committed: https://crrev.com/93ed99a0238f25fe391874d3f6dfa02c01acb781
> Cr-Commit-Position: refs/heads/master@{#430608}

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

Committed: https://crrev.com/16a00aca0642af4f75ed4c68f662e68f590c6cef
Cr-Commit-Position: refs/heads/master@{#430610}
==========

[commit-bot: I haz the power, 2016-11-08 14:53:40]

Patchset 1 (id:??) landed as
https://crrev.com/16a00aca0642af4f75ed4c68f662e68f590c6cef
Cr-Commit-Position: refs/heads/master@{#430610}

[Evan Stade, 2016-11-08 14:56:35]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2483823004/ by estade@chromium.org.

The reason for reverting is: wrong CL reverted.