tree 349c5c8b62665fd46a0d1504c2dff0189e9713a3
parent 21794e0baec0a46c0ace1cca7b5803e47e8518e4
author Anders Hartvoll Ruud <andruud@chromium.org> 1710335221 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1710338504 -0700

[anchor] Generate flips using the try-tactics layer

Previous CLs (CL:5349527 and preceding) established a way for
an internal CSSPropertyValueSet (containing CSSFlipRevertValues)
to be added at the "try tactics layer" in the cascade.
This made it possible to carry out the various "flips" required
by CSS Anchor Positioning, even with interleaving anchor()
implemented (crbug.com/41483417).

This CL uses the value specified in the position-try-options
property to generate those value-flipping CSSPropertyValueSets,
and adds them to the cascade.

For now, the flips only apply to insets and sizing properties.
Additionally, values are not yet rewritten during the flip
(e.g. anchor(left) to anchor(right), etc). This behavior will
be added separately.

Bug: 40279608
Change-Id: Iab85e96e343df1f4527a51e60e10154b4c938ee1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5366066
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Commit-Queue: Anders Hartvoll Ruud <andruud@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1272096}