Update after the removal of _setUpExtension. [1]
[1] I8135fc4eb05e474db7224b7771b71270a93a47bf
This commit includes the following unrelated change
to pass the gate.
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Fix cover job
Copy-and-paste from networking-midonet.
Closes-Bug: #1794509
Change-Id: I5ae3be917deb94673928a236662f953e4cd143ac
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Closes-Bug: #1794457
Change-Id: Ia4d84c7f0dcea44e3131dd756853c003e9c8471d