+++ This bug was initially created as a clone of Bug #1144317 +++ Enable the vsync refresh driver on OS X. Talos results: http://compare-talos.mattn.ca/dev/?oldBranch=Try&oldRevs=c0ae486a7c8f&newBranch=Try&newRev=9f89885a1e84&submit=true

Backed out for OSX 10.10 reftest failures. https://hg.mozilla.org/integration/mozilla-inbound/rev/b3fcbf649765 https://treeherder.mozilla.org/logviewer.html#?job_id=7810504&repo=mozilla-inbound

From https://treeherder.mozilla.org/#/jobs?repo=mozilla-inbound&revision=ea0035a9e043 In case we need to.

Comment on attachment 8581018 [details] [diff] [review] Mark box-sizing-replaced-003.xht as random on OSX 10.10 Review of attachment 8581018 [details] [diff] [review]: ----------------------------------------------------------------- Looks good! ::: dom/base/Element.cpp @@ +1146,5 @@ > const nsAString& aValue, > ErrorResult& aError) > { > const nsAttrName* name = InternalGetExistingAttrNameFromQName(aName); > + printf_stderr("Element::SetAttribute\n"); Probably don't want this in there, right?

Thanks, updated without that printf :)

Release Note Request (optional, but appreciated) [Why is this notable]: Significant changes to scrolling and async animation on OS X. Suggest this as a combined note from this bug, as well as 1137905. [Suggested wording]: Low level changes that lead to smoother animation and scrolling OS X. [Links (documentation, blog post, etc)]:

Note, blog post / docs incoming once it's landed and stable on Windows so we can say its live on OSX and Windows.

Added a link for the release note for 39, to https://hacks.mozilla.org/2015/01/project-silk/.