[runtime] JSObject::GetKeys never returns the EnumCache, so we don't need to copy

[runtime] JSObject::GetKeys never returns the EnumCache, so we don't need to copy

BUG=148757
LOG=n

Committed: https://crrev.com/4e46149f5af53e91ca24ca871ae121ddd14f6fb5
Cr-Commit-Position: refs/heads/master@{#34495}

[Camillo Bruni, 2016-03-04 12:58:42]

cbruni@chromium.org changed reviewers:
+ cbruni@chromium.org

[Camillo Bruni, 2016-03-04 12:58:43]

lgtm

[Toon Verwaest, 2016-03-04 13:03:57]

The CQ bit was checked by verwaest@chromium.org

[Toon Verwaest, 2016-03-04 13:03:58]

The patchset sent to the CQ was uploaded after l-g-t-m from cbruni@chromium.org
Link to the patchset: https://codereview.chromium.org/1768443003/#ps20001
(title: " ")

[commit-bot: I haz the power, 2016-03-04 13:04:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1768443003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1768443003/20001

[commit-bot: I haz the power, 2016-03-04 13:22:45]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-03-04 13:23:21]

Description was changed from

==========
[runtime] JSObject::GetKeys never returns the EnumCache, so we don't need to
copy

BUG=148757
LOG=n
==========

to

==========
[runtime] JSObject::GetKeys never returns the EnumCache, so we don't need to
copy

BUG=148757
LOG=n

Committed: https://crrev.com/4e46149f5af53e91ca24ca871ae121ddd14f6fb5
Cr-Commit-Position: refs/heads/master@{#34495}
==========

[commit-bot: I haz the power, 2016-03-04 13:23:22]

Patchset 2 (id:??) landed as
https://crrev.com/4e46149f5af53e91ca24ca871ae121ddd14f6fb5
Cr-Commit-Position: refs/heads/master@{#34495}