Oilpan: Don't limit the number of wrappers collected in minor GC cycles

Oilpan: Don't limit the number of wrappers collected in minor GC cycles

In Oilpan, it is better to not limit the number of wrappers collected in
minor GC cycles. This may increase the pause time of a minor GC,
but if we give up collecting wrappers in a minor GC, it will instead end up
with increasing the cost of subsequent Oilpan's GCs. Thus it will be better
to collect as many wrappers as possible for minimizing the value of
max(a pause time of a minor GC, a pause time of Oilpan's GC).

BUG=

Committed: https://crrev.com/dba5fc94c1c009edef581ed788f954c8c980ee52
Cr-Commit-Position: refs/heads/master@{#352307}

[haraken, 2015-10-05 00:01:03]

haraken@chromium.org changed reviewers:
+ oilpan-reviews@chromium.org, sigbjornf@opera.com

[haraken, 2015-10-05 00:01:04]

PTAL

[haraken, 2015-10-05 00:02:48]

On 2015/10/05 00:01:04, haraken wrote:
> PTAL

BTW, the object grouping for a minor GC is going to be removed soon
(https://code.google.com/p/v8/issues/detail?id=4421), so I don't much worry
about landing this CL in short-term.

[sof, 2015-10-05 06:07:04]

lgtm

[haraken, 2015-10-05 06:22:39]

The CQ bit was checked by haraken@chromium.org

[commit-bot: I haz the power, 2015-10-05 06:22:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1389603002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1389603002/20001

[commit-bot: I haz the power, 2015-10-05 09:20:33]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-10-05 09:21:36]

Patchset 2 (id:??) landed as
https://crrev.com/dba5fc94c1c009edef581ed788f954c8c980ee52
Cr-Commit-Position: refs/heads/master@{#352307}