Comment 6 for bug 1433552

Reviewed: https://review.openstack.org/169876
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=9bca9ca84b76cc5bba03e9c0ff42bceaf5d2b028
Submitter: Jenkins
Branch: master

commit 9bca9ca84b76cc5bba03e9c0ff42bceaf5d2b028
Author: Paul Michali <email address hidden>
Date: Wed Apr 1 13:47:43 2015 -0400

    Refactoring cleanup for L3 agent callbacks

    This commit completes the refactoring of the L3 agent callback mechanism.
    The goal here is to also use the neutron/callbacks/ mechanism for L3 agent
    notifications, instead of have two mechanisms.

    [1] modified the L3 agent to send notifiactions for router create, udpate,
    and delete events, using the neutron/callbacks/ mechanism.

    [2] modified VPN to use this new mechanism, instead of the L3EventObservers
    mechanism. Note:

    [3] modified FW repo to no longer depended on the L3EventObserver and
    related objects (it doesn't currently use the event notifications).

    This commit removes the notifications for the L3EventObservers mechanism,
    removed the related modules and tests, and adds in tests to verify that the
    new notifications are called for the different events.

    Once [1] and [2] are upstreamed, this commit can proceed.

    Refs:
    [1] https://review.openstack.org/#/c/164466/
    [2] https://review.openstack.org/#/c/165226/
    [3] https://review.openstack.org/#/c/167275/

    Change-Id: I7c4b4ea5f9fb19abb812665cdae5fb70c84fe3ec
    Depends-On: If5040a827a6903cc7cb5e59cdb7fb95f61b13d47
    Closes-Bug: #1433552