Oilpan: improve fast/workers/worker-document-leak.html stability.

Oilpan: improve fast/workers/worker-document-leak.html stability.

Remove (one) fast/workers/ gc() definition, relying instead on the
js-test.js version, which performs the more thorough
GCController.collectAll().

R=haraken
BUG=340522
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=190756

[sof, 2015-02-24 09:52:59]

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

[sof, 2015-02-24 09:53:00]

Please take a look.

[haraken, 2015-02-24 09:56:16]

LGTM

[sof, 2015-02-24 10:53:46]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2015-02-24 10:54:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/953793002/1

[sof, 2015-02-24 11:32:56]

The CQ bit was unchecked by sigbjornf@opera.com

[sof, 2015-02-24 11:51:54]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2015-02-24 11:53:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/953793002/1

[sof, 2015-02-24 12:15:27]

The CQ bit was unchecked by sigbjornf@opera.com

[sof, 2015-02-24 12:15:52]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2015-02-24 12:16:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/953793002/1

[commit-bot: I haz the power, 2015-02-24 14:57:36]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=190756