Oilpan: tighten up allowed allocation of some types.

No need to support these objects as being part of collections; adjust
macro usage.

R=ager
BUG=340522

Review URL: https://codereview.chromium.org/592673002

git-svn-id: svn://svn.chromium.org/blink/trunk@182398 bbb929c8-8fbe-4397-9dbb-9b2b20218538