Oilpan: Eagerly finalize RTCSessionDescriptionRequest

Oilpan: Eagerly finalize RTCSessionDescriptionRequest

RTCSessionDescriptionRequest::m_extraData must be eagerly finalized.
Otherwise, it can happen that the RTCSessionDescriptionRequest is accessed
after the RTCSessionDescriptionRequest gets destructed in an early stage
of the lazy sweeping.

BUG=507307
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=198357

[haraken, 2015-07-07 00:31:21]

haraken@chromium.org changed reviewers:
+ keishi@chromium.org, oilpan-reviews@chromium.org

[haraken, 2015-07-07 00:31:22]

PTAL

[keishi, 2015-07-07 02:47:07]

lgtm

[haraken, 2015-07-07 03:19:01]

The CQ bit was checked by haraken@chromium.org

[commit-bot: I haz the power, 2015-07-07 03:19:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1227533004/1

[commit-bot: I haz the power, 2015-07-07 03:22:35]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=198357

[sof, 2015-07-12 07:10:39]

sigbjornf@opera.com changed reviewers:
+ sigbjornf@opera.com

[sof, 2015-07-12 07:10:39]

This ExtraData doesn't appear used by Chrome/ium (nor its unit tests); let's
just try to remove it altogether? https://codereview.chromium.org/1233793002/
does so.