Comment 2 for bug 1162355

StacktraceTop:
 operator() (__closure=<optimized out>) at /build/buildd/unity-6.12.0daily13.03.29.1/launcher/VolumeImp.cpp:58
 operator() (this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
 sigc::internal::slot_call0<unity::launcher::VolumeImp::Impl::Impl(unity::glib::Object<_GVolume> const&, std::shared_ptr<unity::FileManager> const&, std::shared_ptr<unity::launcher::DeviceNotificationDisplay> const&, unity::launcher::VolumeImp*)::{lambda()#3}, void>::call_it(sigc::internal::slot_rep*) (rep=0x9856250) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
 emit (impl=0x9856220) at /usr/include/sigc++-2.0/sigc++/signal.h:776
 emit (this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:2673