Make noreferrer imply noopener
Make noreferrer imply noopener

RELNOTES[INC]: Setting noreferrer when opening a popup now implies noopener

PiperOrigin-RevId: 461890269
Change-Id: I8a97ebfc2ab0945da8b14acaa01909c8f1618a6c

google/closure-library,google/closure-library,google/closure-library,google/closure-library,google/closure-library