As of tomorrow, Chrome is hosing autoplay on Flash for any content not directly related to a given page:
From the article:
That means that videos and animations in ads using Adobe’s Flash technology will no longer autoplay in the world’s most-used browser. Ads using HTML5, on the other hand, will continue to work.
What this means in practical terms is that Flash-driven advertising content is effectively dead.
Flash and I have a history, and it's not a good one; so the song 'Ding-Dong, the Witch is Dead' has been running through my head all day. Viva la Hype!