Add media events to goog.events.EventType
Add media events to goog.events.EventType

https://developer.mozilla.org/en-US/docs/Web/Events

RELNOTES: goog.events.EventType is updated with media events.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=125009113

codyebberson/closure-library,Dominator008/closure-library,platinumpixs/google-closure-library,joeltine/closure-library,codyebberson/closure-library,platinumpixs/google-closure-library,ChadKillingsworth/closure-library,Medium/closure-library,codyebberson/closure-library,ikabirov/closure-library,ChadKillingsworth/closure-library,platinumpixs/google-closure-library,redforks/closure-library,Medium/closure-library,lucidsoftware/closure-library,joeltine/closure-library,ikabirov/closure-library,joeltine/closure-library,google/closure-library,lucidsoftware/closure-library,teppeis/closure-library,Medium/closure-library,redforks/closure-library,lucidsoftware/closure-library,ikabirov/closure-library,joeltine/closure-library,google/closure-library,ChadKillingsworth/closure-library,teppeis/closure-library,ikabirov/closure-library,google/closure-library,redforks/closure-library,Dominator008/closure-library,platinumpixs/google-closure-library,teppeis/closure-library,teppeis/closure-library,redforks/closure-library,codyebberson/closure-library,ChadKillingsworth/closure-library,google/closure-library,lucidsoftware/closure-library,google/closure-library,Medium/closure-library,Dominator008/closure-library,Dominator008/closure-library