MediaSessionReducer

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	0 of 104	100%	0 of 14	100%	0	8	0	20	0	1
reduce(BrowserState, MediaSessionAction)		100%		100%	0	8	0	20	0	1