fast/text/international/hindi-spacing.html is 100% reliable on older OS versions, but fails a lot on Yosemite: https://build.webkit.org/results/Apple%20Yosemite%20Release%20WK2%20(Tests)/r175201%20(171)/fast/text/international/hindi-spacing-pretty-diff.html Not sure what can possibly make the size of RenderBR different between runs.
Possibly CoreText quantization changes
> Possibly CoreText quantization changes Can that affect RenderBR too? The test expects 0x0 size, and gets 1x0.
transforms/2d/hindi-rotated.html also has off-by-one errors on Yosemite only, so I'm going to have both covered by this bug. Marked as flaky in <http://trac.webkit.org/r175990>.
This hasn't happened in the last three days, so this must be a duplicate of bug 138683. *** This bug has been marked as a duplicate of bug 138683 ***