audrasjb 1e791f041d Editor: Backport Style Engine API functions, classes and tests. ...

This PR migrates the Style Engine PHP functions, classes and tests into Core for 6.1. It backports the original [WordPress/gutenberg#40260 PR #40260] from Gutenberg repository.

Props ramonopoly, bernhard-reiter, costdev, azaozz, andrewserong, mukesh27, aristath.
See #56467.

Built from https://develop.svn.wordpress.org/trunk@54156


git-svn-id: http://core.svn.wordpress.org/trunk@53715 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2022-09-14 12:48:16 +00:00

..

class-wp-style-engine-css-declarations.php

…

class-wp-style-engine-css-rule.php

…

class-wp-style-engine-css-rules-store.php

…

class-wp-style-engine-processor.php

…

class-wp-style-engine.php

…