Re: [whatwg/dom] High resolution timing for events (#23)

> In any case, before spending too much effort on this I like to have some agreement that this is an acceptable experiments and an acceptable threshold (e.g., 0.02% of pages?) for seeing this type of usage leading to breakage.

Generally speaking, I have concerns about treating any specific percentage of pages as evidence that breakage is ok. Because the web is so huge, "real" applications are a very small percentage. Maybe we could categorize breakage by things like presence of certain globals (Ember, Backbone, React), usage of other "tracer" features like `history.pushState` that would indicate that a website is more of an "application" than pure content?

If you're interested, I would love to help beef up Blink's usage analysis in this way ("application" is one useful category, but there are probably others, like "mobile site", etc.). It would make me feel a lot more confident that the identified features aren't heavily used in some pocket of the web.

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