Implement CSS side of support for interpolate-size CSS property.
This implements the CSS side of support for the interpolate-size CSS
property that was agreed on in
w3c/csswg-drafts#10294
and has a draft specification at
https://drafts.csswg.org/css-values-5/#interpolate-size .
This is part of https://chromestatus.com/feature/5196713071738880 .
Making the property do something will be in a later CL.
This property is behind the CSSCalcSizeFunction feature.
Bug: 313072, 346977015
Change-Id: I49a01926866a4bae87bf88ace3c0b0119685ae51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5640542
Reviewed-by: Ian Kilpatrick ikilpatrick@chromium.org
Commit-Queue: David Baron dbaron@chromium.org
Cr-Commit-Position: refs/heads/main@{#1325755}