Oilpan: Oilpan's GC should not be triggered without having allocated any object

Oilpan: Oilpan's GC should not be triggered without having allocated any object

This is a fix for a regression caused by r194282.
With the current threshold, Oilpan's GC can be triggered without having allocated
any object on Oilpan's heap. That is wrong. This CL changes the threshold
so that Oilpan's GC is not triggered until Oilpan has allocated a certain amount
of objects.

BUG=474470
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=194320

[haraken, 2015-04-23 16:53:19]

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

[haraken, 2015-04-23 16:53:19]

PTAL

[sof, 2015-04-23 18:56:09]

lgtm, thanks very much for addressing right away.

[sof, 2015-04-23 18:56:16]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2015-04-23 18:56:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1100283003/1

[haraken, 2015-04-23 19:10:21]

I think this CL is fine, but we need to address the Platform::current() issue
separately.

[sof, 2015-04-23 19:35:48]

On 2015/04/23 19:10:21, haraken wrote:
> I think this CL is fine, but we need to address the Platform::current() issue
> separately.

Yes, this one will cycle the tree green though, so no added urgency to address
the other one.

[commit-bot: I haz the power, 2015-04-23 20:11:52]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=194320