268357@main refers CSSPropertyMixBlendMode without #if ENABLE(CSS_COMPOSITING) block.
Pull request: https://github.com/WebKit/WebKit/pull/18215
Committed 268446@main (6ac463369df1): <https://commits.webkit.org/268446@main> Reviewed commits have been landed. Closing PR #18215 and removing active labels.
<rdar://problem/116047933>