Updated openstack/openstack
Project: openstack/nova  ee58455faa9279dff084e58340aa9db390eb48f1

libvirt: pass Host object into firewall class

Instead of passing in a get_connection callback function,
give the firewall class impls direct access to the new Host
object instead. Make use of the fakelibvirt fixture to
avoid needing to mock out the libvirt APIs directly.

Blueprint: libvirt-driver-class-refactor
Change-Id: I8af9a5a2ba4f87ef221b9276df7d08395e44f021