tree 16b32bfd784c2e7c98061a672d035e4c186d8b0c
parent db8b44400df0409ce4e4a13c63ad920e7b964c0f
author sigbjornf@opera.com <sigbjornf@opera.com> 1410465360 +0000
committer sigbjornf@opera.com <sigbjornf@opera.com> 1410465360 +0000

Oilpan: fix PromiseTracker's handling of its persistent promise wrappers.

The handling of the PromiseDataWrapper in r181662 wasn't complete, as it
failed to keep an Oilpan-reachable persistent to the GCed wrapper object,
risking premature finalization. For Oilpan also, this wrapper object should 
only keep its references weakly alive.

To make the tracing of these relationships work out, PromiseTracker is
no longer a part object, but heap allocated.

R=haraken
BUG=340522

Review URL: https://codereview.chromium.org/561753002

git-svn-id: svn://svn.chromium.org/blink/trunk@181845 bbb929c8-8fbe-4397-9dbb-9b2b20218538