Revert of Don't reset scroll position of contents on every ScrollView layout.

Revert of Don't reset scroll position of contents on every ScrollView layout. (patchset #3 id:40001 of https://codereview.chromium.org/2509783002/ )

Reason for revert:
This change likely breaks NativeWidgetMacTest.WindowModalSheet test on Mac.

https://build.chromium.org/p/chromium.mac/builders/Mac10.9%20Tests%20%28dbg%29/builds/33145/steps/views_unittests%20on%20Mac-10.9/logs/NativeWidgetMacTest.WindowModalSheet

Original issue's description:
> Don't reset scroll position of contents on every ScrollView layout.
>
> Also do a little cleanup in ash scrollview related code.
>
> BUG=664930
>
> Committed: https://crrev.com/210e0fa83113f83d29ac3c1203c2047e905601e9
> Cr-Commit-Position: refs/heads/master@{#432749}

TBR=sky@chromium.org,estade@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=664930
Committed: https://crrev.com/cd3b2a6045f96ac2670e84b92c89acf5a3a99d75
Cr-Commit-Position: refs/heads/master@{#432827}

[msramek, 2016-11-17 09:19:30]

The CQ bit was checked by msramek@chromium.org

[msramek, 2016-11-17 09:19:31]

Created Revert of Don't reset scroll position of contents on every ScrollView
layout.

[commit-bot: I haz the power, 2016-11-17 09:19:50]

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, 2016-11-17 09:20:56]

Description was changed from

==========
Revert of Don't reset scroll position of contents on every ScrollView layout.
(patchset #3 id:40001 of https://codereview.chromium.org/2509783002/ )

Reason for revert:
This change likely breaks NativeWidgetMacTest.WindowModalSheet test on Mac.

https://build.chromium.org/p/chromium.mac/builders/Mac10.9%20Tests%20%28dbg%2...

Original issue's description:
> Don't reset scroll position of contents on every ScrollView layout.
> 
> Also do a little cleanup in ash scrollview related code.
> 
> BUG=664930
> 
> Committed: https://crrev.com/210e0fa83113f83d29ac3c1203c2047e905601e9
> Cr-Commit-Position: refs/heads/master@{#432749}

TBR=sky@chromium.org,estade@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=664930
==========

to

==========
Revert of Don't reset scroll position of contents on every ScrollView layout.
(patchset #3 id:40001 of https://codereview.chromium.org/2509783002/ )

Reason for revert:
This change likely breaks NativeWidgetMacTest.WindowModalSheet test on Mac.

https://build.chromium.org/p/chromium.mac/builders/Mac10.9%20Tests%20%28dbg%2...

Original issue's description:
> Don't reset scroll position of contents on every ScrollView layout.
> 
> Also do a little cleanup in ash scrollview related code.
> 
> BUG=664930
> 
> Committed: https://crrev.com/210e0fa83113f83d29ac3c1203c2047e905601e9
> Cr-Commit-Position: refs/heads/master@{#432749}

TBR=sky@chromium.org,estade@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=664930
==========

[commit-bot: I haz the power, 2016-11-17 09:21:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-17 09:25:46]

Description was changed from

==========
Revert of Don't reset scroll position of contents on every ScrollView layout.
(patchset #3 id:40001 of https://codereview.chromium.org/2509783002/ )

Reason for revert:
This change likely breaks NativeWidgetMacTest.WindowModalSheet test on Mac.

https://build.chromium.org/p/chromium.mac/builders/Mac10.9%20Tests%20%28dbg%2...

Original issue's description:
> Don't reset scroll position of contents on every ScrollView layout.
> 
> Also do a little cleanup in ash scrollview related code.
> 
> BUG=664930
> 
> Committed: https://crrev.com/210e0fa83113f83d29ac3c1203c2047e905601e9
> Cr-Commit-Position: refs/heads/master@{#432749}

TBR=sky@chromium.org,estade@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=664930
==========

to

==========
Revert of Don't reset scroll position of contents on every ScrollView layout.
(patchset #3 id:40001 of https://codereview.chromium.org/2509783002/ )

Reason for revert:
This change likely breaks NativeWidgetMacTest.WindowModalSheet test on Mac.

https://build.chromium.org/p/chromium.mac/builders/Mac10.9%20Tests%20%28dbg%2...

Original issue's description:
> Don't reset scroll position of contents on every ScrollView layout.
>
> Also do a little cleanup in ash scrollview related code.
>
> BUG=664930
>
> Committed: https://crrev.com/210e0fa83113f83d29ac3c1203c2047e905601e9
> Cr-Commit-Position: refs/heads/master@{#432749}

TBR=sky@chromium.org,estade@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=664930

Committed: https://crrev.com/cd3b2a6045f96ac2670e84b92c89acf5a3a99d75
Cr-Commit-Position: refs/heads/master@{#432827}
==========

[commit-bot: I haz the power, 2016-11-17 09:25:47]

Patchset 1 (id:??) landed as
https://crrev.com/cd3b2a6045f96ac2670e84b92c89acf5a3a99d75
Cr-Commit-Position: refs/heads/master@{#432827}

[Evan Stade, 2016-11-17 22:45:51]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2507053004/ by estade@chromium.org.

The reason for reverting is: tapted@ disabled the failing test, which we suspect
was only failing due to how this patch affected sharding.