Compiz does not advertise support for _NET_REQUEST_FRAME_EXTENTS

[Barrie Cooper]

Compiz appears to support the _NET_REQUEST_FRAME_EXTENTS EWMH functionality but for some reason does not put this atom on the root in the _NET_SUPPORTED list.

Description: Ubuntu 12.04.1 LTS
Release: 12.04

compiz:
    Installed: 1:0.9.7.8-0ubuntu1.4

I expect the _NET_SUPPORTED property to be filled out with an _NET_REQUEST_FRAME_EXTENTS entry as happens with metacity; otherwise how do I know this extended feature is supported? Running 'metacity --replace' followed by 'compiz --replace' leaves the hint in place as presumably put there by metacity and the _NET_REQUEST_FRAME_EXTENTS feature then works as per the spec.