[Bug 20397] [Custom]: Consider changing elementupgrade to a mutation observer

https://www.w3.org/Bugs/Public/show_bug.cgi?id=20397

--- Comment #8 from Dimitri Glazkov <dglazkov@chromium.org> ---
(In reply to comment #7)
> Oh, that sounds like a bug.

My thinking here was to keep element upgrade as quiet and least side-effectey
as possible, and only signal when the upgrade is done.

Also, in cases when we (the browser) know that the author doesn't hold JS
references to the element that's being replaced, we (the browser) don't _need_
to do actually do any replacing. In which case, we don't have to generate
artificial mutation records.

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Received on Friday, 14 December 2012 23:27:12 UTC