Automatic update from web-platform-tests Move CSSAdvancedAttrFunction runtime flag to test Some of the serialization failures left, to be done in the separate CL. Test wpt/css/css-variables/variable-generated-content-dynamic-001.html is not valid according to the new attr() spec, see [0]. So changed it to make it compatible with the new and old attr() spec. [0] https://github.com/w3c/csswg-drafts/issues/4482#issuecomment-630566374 Bug: 40320391 Change-Id: Icda380f30ad995c024d72b3dcb259f2f0729aef3 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6049617 Commit-Queue: Munira Tursunova <moonira@google.com> Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org> Cr-Commit-Position: refs/heads/main@{#1392170} -- wpt-commits: 6885ffcf83aea2e2f83042cae74ceb39320db5f4 wpt-pr: 49539