[Bug 31461] volume icon shown even if user has no access rights on it

[Markus Bertheau]

Public bug reported:
https://launchpad.net/malone/bugs/31461

Affects: nautilus (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
USB volumes are mounted automatically, and only one user has access
rights to it, including directory read rights. When you're logged in
with two users, the volume icon appears on the second user's desktop,
too, but he doesn't have the rights to look at its contents; the volume
icon should not appear on his desktop.