The following layout test is flaky on Mac:
This is a new test, added in bug 120457.
Marked as flaky in r157941.
Should this test be in `LayoutTests/compositiong/regions` or in `LayoutTests/fast/regions`?
(In reply to comment #2)
> Should this test be in `LayoutTests/compositiong/regions` or in `LayoutTests/fast/regions`?
The layout tests are being run on the testing bots using virtual machines. Only the tests located in LayoutTests/compositing are guaranteed to be run in an environment that supports accelerated compositing.
This test still fails most of the time on Mac.
The difference is some extremely subtle noise around play button (the triangle), which is an SVG element with a shadow.