Revert "binding: Window-returning attributes return null if a Window is detached."

Revert "binding: Window-returning attributes return null if a Window is detached."

This reverts commit eb73fb7bd81b3253a36171851da62e15e5f88b41.

The root cause of https://crbug.com/621730 was not related to the binding layer,
and https://crrev.com/2085983002 caused regressions as reported at
https://crbug.com/629840 , so let's revert the CL.

BUG=629840, 621730
Committed: https://crrev.com/3744fab24dd32abd9ffe76ccc77a4d21ae59ab3a
Cr-Commit-Position: refs/heads/master@{#407750}

[Yuki, 2016-07-26 07:56:57]

The CQ bit was checked by yukishiino@chromium.org to run a CQ dry run

[Yuki, 2016-07-26 07:57:12]

yukishiino@chromium.org changed reviewers:
+ haraken@chromium.org

[Yuki, 2016-07-26 07:57:13]

Could you review this CL?

[commit-bot: I haz the power, 2016-07-26 07:57:26]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[haraken, 2016-07-26 08:09:11]

LGTM

[commit-bot: I haz the power, 2016-07-26 09:10:55]

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

[commit-bot: I haz the power, 2016-07-26 09:10:56]

Dry run: This issue passed the CQ dry run.

[Yuki, 2016-07-26 09:31:18]

The CQ bit was checked by yukishiino@chromium.org

[commit-bot: I haz the power, 2016-07-26 09:31:45]

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, 2016-07-26 09:35:19]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-26 09:38:14]

Description was changed from

==========
Revert "binding: Window-returning attributes return null if a Window is
detached."

This reverts commit eb73fb7bd81b3253a36171851da62e15e5f88b41.

The root cause of https://crbug.com/621730 was not related to the binding layer,
and https://crrev.com/2085983002 caused regressions as reported at
https://crbug.com/629840 , so let's revert the CL.

BUG=629840,621730
==========

to

==========
Revert "binding: Window-returning attributes return null if a Window is
detached."

This reverts commit eb73fb7bd81b3253a36171851da62e15e5f88b41.

The root cause of https://crbug.com/621730 was not related to the binding layer,
and https://crrev.com/2085983002 caused regressions as reported at
https://crbug.com/629840 , so let's revert the CL.

BUG=629840,621730

Committed: https://crrev.com/3744fab24dd32abd9ffe76ccc77a4d21ae59ab3a
Cr-Commit-Position: refs/heads/master@{#407750}
==========

[commit-bot: I haz the power, 2016-07-26 09:38:15]

Patchset 1 (id:??) landed as
https://crrev.com/3744fab24dd32abd9ffe76ccc77a4d21ae59ab3a
Cr-Commit-Position: refs/heads/master@{#407750}