After landing Bug 1272549, Bug 1286150, and Bug 1286151, almost all animated CSS properties are covered for paced spacing, so it's time to ship paced spacing on Web Animations API. i.e. remove the checking of IsCoreAPIEnabledForCaller() from spacing.[1] [1] http://searchfox.org/mozilla-central/rev/8562d3859b89ac89f46690b9ed2c473e0728d6c0/dom/animation/KeyframeEffectParams.cpp#116-121

We need to get this specced first and then coordinate with Google. Also, when I spoke to Google last Friday, they suggested an alternate way of calculating distance for transform lists which is probably better :/ I'll file a bug on it.

(In reply to Brian Birtles (:birtles) from comment #1) > We need to get this specced first and then coordinate with Google. > > Also, when I spoke to Google last Friday, they suggested an alternate way of > calculating distance for transform lists which is probably better :/ I'll > file a bug on it. OK. I will also file an issue/proposal to w3c for calculating the distance of filter lists, and wait for your new suggested way for transform lists.

Marking this as invalid per bug 1339690.