Use same steps to test MBS connection as when actually connecting

Bug: 163817074
Test: manual
Test: atest MediaResumeListenerTest ResumeMediaBrowserTest
Change-Id: I68b3f98dbcc984822b737887c222be771093e9c6
Merged-In: I68b3f98dbcc984822b737887c222be771093e9c6
(cherry picked from commit 7d8b80e602fc624728acdd2b73f3a4bcac1464d0)
6 files changed