Oilpan: add prefinalizer for HTMLMediaElement.
A prefinalizer is needed for the media element for the case where it is
finalized in the same GC as its execution context (Document.) The
interaction between the media element and the Document to synchronize
load event handling can only safely be done prior to either is swept
out and finalized.
R=
BUG=500352
Review URL: https://codereview.chromium.org/1184373006
git-svn-id: svn://svn.chromium.org/blink/trunk@197339 bbb929c8-8fbe-4397-9dbb-9b2b20218538
2 files changed
