[PATCH v5 0/3] MR5584: mf: Fixes the missing MESessionClosed event in various scenarios.

[Brendan McGrath (＠redmcg)]

Killsquad sends a MESessionClose at various times depending on user input. It always expects a MESessionClosed event and will wait indefinitely if not received. There are currently a number of scenarios where we don't report the MESessionClose event. This MR attempts to fix that.

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  v5: mf: Handle an error during Media Session Close.
      mf: Handle MediaSession Close when state is SESSION_STATE_RESTARTING_SOURCES.
      mf/tests: Add additional tests for MESessionClosed event.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/5584