Need to replace legacy StubOutForTesting class

[Clinton Knight]

The Manila test class uses a class called StubOutForTesting, which is an awkward holdover from when the unit tests were using Mox. Alex wrote a more elegant and capable mocker method, manila.test.TestCase.mock_object, in the Cinder project which we have now added to Manila. So to remove the duplicate functionality and legacy code, all references to self.stubs.Set() in the Manila tests should be replaced with self.mock_object().

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/152324

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/152324
Committed: https://git.openstack.org/cgit/openstack/manila/commit/?id=65d1158526d9597506bf1d29e8a219e76ce6866b
Submitter: Jenkins
Branch: master

commit 65d1158526d9597506bf1d29e8a219e76ce6866b
Author: Clinton Knight <email address hidden>
Date: Wed Jan 28 14:35:02 2015 -0500

    Replace legacy StubOutForTesting class

    The Manila test module uses a class called StubOutForTesting, which
    is an awkward holdover from when the unit tests were using Mox.
    Alex wrote a more elegant and capable mocker method,
    manila.test.TestCase.mock_object, in the Cinder project which we
    have now added to Manila. So to remove the duplicate functionality
    and legacy code, all references to self.stubs.Set() in the Manila
    tests should be replaced with self.mock_object() and any related
    dead code should be removed.

    Resolves-bug: #1415602
    Change-Id: Ie5f203c0b2cb57ad00d9ec8db0529075b6fef261