Revert of Use registerWeakMembers to clean up IntersectionObserver.

Revert of Use registerWeakMembers to clean up IntersectionObserver. (patchset #1 id:1 of https://codereview.chromium.org/1591763003/ )

Reason for revert:
Broke on some tests w/ Oilpan enabled,

 https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan%20Leak/builds/16410

backing it out.

(see also https://codereview.chromium.org/1596333002/ )

Original issue's description:
> Use registerWeakMembers to clean up IntersectionObserver.
>
> Pre-oilpan, when the root disappears, it observers are cleaned up
> in NodeIntersectionObserverData::dispose().
>
> Post-oilpan, the cleanup will be done with registerWeakMembers.
>
> BUG=540528
> R=haraken@chromium.org,dcheng@chromium.org
>
> Committed: https://crrev.com/546573354e47ddd01f491c382701fa51500f85eb
> Cr-Commit-Position: refs/heads/master@{#369948}

TBR=dcheng@chromium.org,haraken@chromium.org,szager@chromium.org
BUG=540528
NOTRY=true

Committed: https://crrev.com/7beaecbcac87a75ced26b4415fb84fc2cf559307
Cr-Commit-Position: refs/heads/master@{#369970}

[sof, 2016-01-17 21:39:46]

Created Revert of Use registerWeakMembers to clean up IntersectionObserver.

[commit-bot: I haz the power, 2016-01-17 21:39:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1600243002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1600243002/1

[sof, 2016-01-17 21:46:01]

The CQ bit was unchecked by sigbjornf@opera.com

[sof, 2016-01-17 21:46:18]

Description was changed from

==========
Revert of Use registerWeakMembers to clean up IntersectionObserver. (patchset #1
id:1 of https://codereview.chromium.org/1591763003/ )

Reason for revert:
Broke on some tests w/ Oilpan enabled,


https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan...

backing it out.

(see also https://codereview.chromium.org/1596333002/ )

Original issue's description:
> Use registerWeakMembers to clean up IntersectionObserver.
> 
> Pre-oilpan, when the root disappears, it observers are cleaned up
> in NodeIntersectionObserverData::dispose().
> 
> Post-oilpan, the cleanup will be done with registerWeakMembers.
> 
> BUG=540528
> R=haraken@chromium.org,dcheng@chromium.org
> 
> Committed: https://crrev.com/546573354e47ddd01f491c382701fa51500f85eb
> Cr-Commit-Position: refs/heads/master@{#369948}

TBR=dcheng@chromium.org,haraken@chromium.org,szager@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=540528
==========

to

==========
Revert of Use registerWeakMembers to clean up IntersectionObserver. (patchset #1
id:1 of https://codereview.chromium.org/1591763003/ )

Reason for revert:
Broke on some tests w/ Oilpan enabled,


https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan...

backing it out.

(see also https://codereview.chromium.org/1596333002/ )

Original issue's description:
> Use registerWeakMembers to clean up IntersectionObserver.
> 
> Pre-oilpan, when the root disappears, it observers are cleaned up
> in NodeIntersectionObserverData::dispose().
> 
> Post-oilpan, the cleanup will be done with registerWeakMembers.
> 
> BUG=540528
> R=haraken@chromium.org,dcheng@chromium.org
> 
> Committed: https://crrev.com/546573354e47ddd01f491c382701fa51500f85eb
> Cr-Commit-Position: refs/heads/master@{#369948}

TBR=dcheng@chromium.org,haraken@chromium.org,szager@chromium.org
BUG=540528
NOTRY=true
==========

[sof, 2016-01-17 21:46:29]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2016-01-17 21:46:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1600243002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1600243002/1

[commit-bot: I haz the power, 2016-01-17 21:50:53]

Description was changed from

==========
Revert of Use registerWeakMembers to clean up IntersectionObserver. (patchset #1
id:1 of https://codereview.chromium.org/1591763003/ )

Reason for revert:
Broke on some tests w/ Oilpan enabled,


https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan...

backing it out.

(see also https://codereview.chromium.org/1596333002/ )

Original issue's description:
> Use registerWeakMembers to clean up IntersectionObserver.
> 
> Pre-oilpan, when the root disappears, it observers are cleaned up
> in NodeIntersectionObserverData::dispose().
> 
> Post-oilpan, the cleanup will be done with registerWeakMembers.
> 
> BUG=540528
> R=haraken@chromium.org,dcheng@chromium.org
> 
> Committed: https://crrev.com/546573354e47ddd01f491c382701fa51500f85eb
> Cr-Commit-Position: refs/heads/master@{#369948}

TBR=dcheng@chromium.org,haraken@chromium.org,szager@chromium.org
BUG=540528
NOTRY=true
==========

to

==========
Revert of Use registerWeakMembers to clean up IntersectionObserver. (patchset #1
id:1 of https://codereview.chromium.org/1591763003/ )

Reason for revert:
Broke on some tests w/ Oilpan enabled,


https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan...

backing it out.

(see also https://codereview.chromium.org/1596333002/ )

Original issue's description:
> Use registerWeakMembers to clean up IntersectionObserver.
> 
> Pre-oilpan, when the root disappears, it observers are cleaned up
> in NodeIntersectionObserverData::dispose().
> 
> Post-oilpan, the cleanup will be done with registerWeakMembers.
> 
> BUG=540528
> R=haraken@chromium.org,dcheng@chromium.org
> 
> Committed: https://crrev.com/546573354e47ddd01f491c382701fa51500f85eb
> Cr-Commit-Position: refs/heads/master@{#369948}

TBR=dcheng@chromium.org,haraken@chromium.org,szager@chromium.org
BUG=540528
NOTRY=true
==========

[commit-bot: I haz the power, 2016-01-17 21:50:53]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-17 21:52:15]

Description was changed from

==========
Revert of Use registerWeakMembers to clean up IntersectionObserver. (patchset #1
id:1 of https://codereview.chromium.org/1591763003/ )

Reason for revert:
Broke on some tests w/ Oilpan enabled,


https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan...

backing it out.

(see also https://codereview.chromium.org/1596333002/ )

Original issue's description:
> Use registerWeakMembers to clean up IntersectionObserver.
> 
> Pre-oilpan, when the root disappears, it observers are cleaned up
> in NodeIntersectionObserverData::dispose().
> 
> Post-oilpan, the cleanup will be done with registerWeakMembers.
> 
> BUG=540528
> R=haraken@chromium.org,dcheng@chromium.org
> 
> Committed: https://crrev.com/546573354e47ddd01f491c382701fa51500f85eb
> Cr-Commit-Position: refs/heads/master@{#369948}

TBR=dcheng@chromium.org,haraken@chromium.org,szager@chromium.org
BUG=540528
NOTRY=true
==========

to

==========
Revert of Use registerWeakMembers to clean up IntersectionObserver. (patchset #1
id:1 of https://codereview.chromium.org/1591763003/ )

Reason for revert:
Broke on some tests w/ Oilpan enabled,


https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan...

backing it out.

(see also https://codereview.chromium.org/1596333002/ )

Original issue's description:
> Use registerWeakMembers to clean up IntersectionObserver.
>
> Pre-oilpan, when the root disappears, it observers are cleaned up
> in NodeIntersectionObserverData::dispose().
>
> Post-oilpan, the cleanup will be done with registerWeakMembers.
>
> BUG=540528
> R=haraken@chromium.org,dcheng@chromium.org
>
> Committed: https://crrev.com/546573354e47ddd01f491c382701fa51500f85eb
> Cr-Commit-Position: refs/heads/master@{#369948}

TBR=dcheng@chromium.org,haraken@chromium.org,szager@chromium.org
BUG=540528
NOTRY=true

Committed: https://crrev.com/7beaecbcac87a75ced26b4415fb84fc2cf559307
Cr-Commit-Position: refs/heads/master@{#369970}
==========

[commit-bot: I haz the power, 2016-01-17 21:52:16]

Patchset 1 (id:??) landed as
https://crrev.com/7beaecbcac87a75ced26b4415fb84fc2cf559307
Cr-Commit-Position: refs/heads/master@{#369970}

[haraken, 2016-01-18 03:20:48]

LGTM