http://trac.webkit.org/changeset/120966 / https://bugs.webkit.org/show_bug.cgi?id=89676 has introduced at least a couple of layout test failures:
Regressions: Unexpected image mismatch : (2)
compositing/geometry/fixed-position-transform-composited-page-scale-down.html = IMAGE
compositing/scaling/tiled-layer-recursion.html = IMAGE
The failures are still percolating through the bots so I'm going to suppress them on all platforms via TestExpectations. compositing/geometry/fixed-position-transform-composited-page-scale-down.html looks like a progression; compositing/scaling/tiled-layer-recursion.html looks like a regression (the ends of the scrollbars are visible where they weren't before).
Created attachment 148911 [details]
Committed r120981: <http://trac.webkit.org/changeset/120981>
Comment on attachment 148911 [details]
Cleared James Robinson's review+ from obsolete attachment 148911 [details] so that this bug does not appear in http://webkit.org/pending-commit.
Rebased mac compositing/geometry/fixed-position-transform-composited-page-scale-down.html based on the comments here.
Committed r131527: <http://trac.webkit.org/changeset/131527>
Marked LayoutTest bugs, bugs with Chromium IDs, and some others as WontFix. Test failure bugs still are trackable via TestExpectations or disabled unit tests.