Bug#490345: To clarify, epiphany is being invoked from update-manager, which I think is invoked as root

[Dominique Brazziel]

If I invoke epiphany from the terminal or from the
gnome menu I don't get the 'dbus' error message.  But
when I click on a link to a bug report from
update-manager, epiphany is invoked (because it is in
the alternatives system as 'gnome-www-browser').  Here
is the relevant info from '.xsession-errors':

(epiphany-browser:7149): GnomeUI-WARNING **: While
connecting to session manager:
Authentication Rejected, reason : None of the
authentication protocols specified are supported and
host-based authentication failed.

** (epiphany-browser:7149): WARNING **: Unable to
connect to session bus: Did not receive a reply.
Possible causes include: the remote application did
not send a reply, the message bus security policy
blocked the reply, the reply timeout expired, or the
network connection was broken.

(epiphany-browser:7164): GnomeUI-WARNING **: While
connecting to session manager:
Authentication Rejected, reason : None of the
authentication protocols specified are supported and
host-based authentication failed.

** (epiphany-browser:7164): WARNING **: Unable to
connect to session bus: Did not receive a reply.
Possible causes include: the remote application did
not send a reply, the message bus security policy
blocked the reply, the reply timeout expired, or the
network connection was broken.

(epiphany-browser:7244): GnomeUI-WARNING **: While
connecting to session manager:
Authentication Rejected, reason : None of the
authentication protocols specified are supported and
host-based authentication failed.

** (epiphany-browser:7244): WARNING **: Unable to
connect to session bus: Did not receive a reply.
Possible causes include: the remote application did
not send a reply, the message bus security policy
blocked the reply, the reply timeout expired, or the
network connection was broken.