HistoryMetadataReducer

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	0 of 29	100%	0 of 2	100%	0	2	0	5	0	1
reduce(BrowserState, HistoryMetadataAction)		100%		100%	0	2	0	5	0	1