Revert of Add ScriptWrappable::hasPendingActivity to AudioSourceNode

Revert of Add ScriptWrappable::hasPendingActivity to AudioSourceNode (patchset #6 id:120001 of https://codereview.chromium.org/1593763002/ )

Reason for revert:
There is an ordering issue in the layout test. Will fix it and retry.

Original issue's description:
> Add ScriptWrappable to SchduledSourceNode and ScriptProcessorNode
>
> |onended| event in OscillatorNode, AudioBufferSourceNode and
> |onaudioprocess| event in ScriptProcessor node are not fired once the JS
> reference of the node goes out of local scope.
>
> This CL is to keep those nodes from being collected when they still has
> a pending activity. This can be done by adding
> ScriptWrappable.hasPendingActivity() to them.
>
> The change in ScriptWrappable is:
> https://codereview.chromium.org/1609343002/
>
> BUG=577431, 484176, 559220
> TEST=LayoutTests/webaudio/audiosource-premature-gc.html
>
> Committed: https://crrev.com/cfa51385f9a17df78576c607827910f91f4c6683
> Cr-Commit-Position: refs/heads/master@{#377231}

TBR=rtoy@chromium.org,haraken@chromium.org,yukishiino@chromium.org,sigbjornf@opera.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577431, 484176, 559220
Committed: https://crrev.com/109c974af8f517961ee310b99b2463d12b3d0207
Cr-Commit-Position: refs/heads/master@{#377247}

[hongchan, 2016-02-24 09:12:24]

Created Revert of Add ScriptWrappable::hasPendingActivity to AudioSourceNode

[commit-bot: I haz the power, 2016-02-24 09:12:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1727333002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1727333002/1

[commit-bot: I haz the power, 2016-02-24 09:14:22]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-24 09:15:22]

Description was changed from

==========
Revert of Add ScriptWrappable::hasPendingActivity to AudioSourceNode (patchset
#6 id:120001 of https://codereview.chromium.org/1593763002/ )

Reason for revert:
There is an ordering issue in the layout test. Will fix it and retry.

Original issue's description:
> Add ScriptWrappable to SchduledSourceNode and ScriptProcessorNode
> 
> |onended| event in OscillatorNode, AudioBufferSourceNode and
> |onaudioprocess| event in ScriptProcessor node are not fired once the JS
> reference of the node goes out of local scope.
> 
> This CL is to keep those nodes from being collected when they still has
> a pending activity. This can be done by adding
> ScriptWrappable.hasPendingActivity() to them.
> 
> The change in ScriptWrappable is:
> https://codereview.chromium.org/1609343002/
> 
> BUG=577431,484176,559220
> TEST=LayoutTests/webaudio/audiosource-premature-gc.html
> 
> Committed: https://crrev.com/cfa51385f9a17df78576c607827910f91f4c6683
> Cr-Commit-Position: refs/heads/master@{#377231}

TBR=rtoy@chromium.org,haraken@chromium.org,yukishiino@chromium.org,sigbjornf@...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577431,484176,559220
==========

to

==========
Revert of Add ScriptWrappable::hasPendingActivity to AudioSourceNode (patchset
#6 id:120001 of https://codereview.chromium.org/1593763002/ )

Reason for revert:
There is an ordering issue in the layout test. Will fix it and retry.

Original issue's description:
> Add ScriptWrappable to SchduledSourceNode and ScriptProcessorNode
>
> |onended| event in OscillatorNode, AudioBufferSourceNode and
> |onaudioprocess| event in ScriptProcessor node are not fired once the JS
> reference of the node goes out of local scope.
>
> This CL is to keep those nodes from being collected when they still has
> a pending activity. This can be done by adding
> ScriptWrappable.hasPendingActivity() to them.
>
> The change in ScriptWrappable is:
> https://codereview.chromium.org/1609343002/
>
> BUG=577431,484176,559220
> TEST=LayoutTests/webaudio/audiosource-premature-gc.html
>
> Committed: https://crrev.com/cfa51385f9a17df78576c607827910f91f4c6683
> Cr-Commit-Position: refs/heads/master@{#377231}

TBR=rtoy@chromium.org,haraken@chromium.org,yukishiino@chromium.org,sigbjornf@...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577431,484176,559220

Committed: https://crrev.com/109c974af8f517961ee310b99b2463d12b3d0207
Cr-Commit-Position: refs/heads/master@{#377247}
==========

[commit-bot: I haz the power, 2016-02-24 09:15:23]

Patchset 1 (id:??) landed as
https://crrev.com/109c974af8f517961ee310b99b2463d12b3d0207
Cr-Commit-Position: refs/heads/master@{#377247}

[haraken, 2016-02-24 09:18:26]

LGTM

[Yuki, 2016-02-24 10:19:50]

lgtm