Add 'play', 'pause', 'seeked', 'ended' media events & guard - #161

Add 'play', 'pause', 'seeked', 'ended' media events & guard#161

jenna-h wants to merge 1 commit into

MicrosoftEdge:mainMicrosoftEdge/Demos:mainfrom

jenna-h:html-media-eventsjenna-h/microsoft-edge-demos:html-media-eventsCopy head branch name to clipboard