- Bug 1434380: Rewrite parts of reftest reference case grid-auto-min-sizing-definite-001-ref.html to be easier to understand & adjust (8ba429e4)
- Bug 958714 Remove special case for flex & grid items' percent block-axis margin/padding resolution, to align with other browsers (a99820e3)
- Bug 958714 Simplify percent-margin/padding resolution code to pass around a single length as the percent basis (661e649f)
- Bug 958714 Remove obsolete assertion & comment (b2c7373d)