Re: [csswg-drafts] [css-transitions] Add ontransitionend global event handler

This updates CSS Transitions in the same way we updated CSS Animations
 to have these global event handlers.

[Mozilla bug 
911987](https://bugzilla.mozilla.org/show_bug.cgi?id=911987) contains 
most of the history for this. Basically I proposed adding them back at
 TPAC 2015 but @grorg initially seemed hesitant. Then in the F2F in 
Feb 2016, @grorg (and a few other Apple folk who were in the room) 
commented that they won't be dropping support for these. As a result 
we should just go ahead and add them like we did for CSS Animations.

Note that as with CSS Animations I've made this include both content 
attributes and IDL attributes although in my testing I notice that 
only Safari supports the IDL attributes (Chrome does only the content 
attributes). It seems more consistent, however, to support both which 
is what this pull request specifies.

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Received on Wednesday, 27 July 2016 07:06:42 UTC