After bug 153991, I think it is safe to just rebaseline MathML pixel tests: radical-fallback.html opentype/opentype-stretchy.html opentype/horizontal-munderover.html opentype/large-operators.html opentype/horizontal.html opentype/opentype-stretchy-horizontal.html opentype/vertical.html presentation/roots.html presentation/menclose-notation-values.html presentation/mo-stretch.html presentation/mspace-children.html presentation/menclose-notation-default-longdiv.html
https://trac.webkit.org/changeset/202775
Committed r202958: <http://trac.webkit.org/changeset/202958>