We're failing several image tests with spv2 due to minor pixel differences:
svg/dynamic-updates/SVGImageElement-dom-x-attr.html
svg/dynamic-updates/SVGImageElement-svgdom-height-prop.html
svg/dynamic-updates/SVGImageElement-svgdom-preserveAspectRatio-prop.html
svg/dynamic-updates/SVGImageElement-svgdom-width-prop.html
svg/dynamic-updates/SVGImageElement-svgdom-y-prop.html
svg/dynamic-updates/SVGImageElement-svgdom-x-prop.html
svg/custom/createImageElement2.xhtml
svg/dynamic-updates/SVGImageElement-dom-width-attr.html
svg/dynamic-updates/SVGImageElement-dom-preserveAspectRatio-attr.html
svg/dynamic-updates/SVGImageElement-dom-y-attr.html

This is a regression from https://crrev.com/7a49649a96774df16e8f1401137e557e6877a4a1. Does spv2 need to opt in to this?

To reproduce:
run-webkit-tests --additional-driver-flag=--enable-slimming-paint-v2 svg/dynamic-updates/SVGImageElement-dom-x-attr.html