[Webkit-unassigned] [Bug 218880] Serialize CSS <number> values with rounding, limited decimal precision, and no exponents per-spec

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=218880

--- Comment #8 from Tyler Wilcock <twilco.o at protonmail.com> ---
OK, this is ready for a look.  This implementation changes serialization of <number> `CSSPrimitiveValue`s to be formatted at a fixed decimal width.  `*toFixedWidth` in WTFString and `dtoa.{h, cpp}` have been updated to allow truncation of trailing zeros to match the `*toFixedPrecision` variants of these methods (shown in below link).

https://github.com/WebKit/webkit/blob/817c46e152af795d735678386db68805d0aa505e/Source/WTF/wtf/dtoa.cpp#L95#L96

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