style: Remove moz-prefixed aliases for column-gap and CSS multi-column properties.

Introduce a new pref "layout.css.prefixes.columns" to guard the prefixed
aliases.

The modification to `properties-db.js` was generated by
`./mach devtools-css-db`.

Differential Revision: https://phabricator.services.mozilla.com/D59564
This commit is contained in:
Ting-Yu Lin 2020-01-16 21:45:19 +00:00 committed by Emilio Cobos Álvarez
parent 9817ca386c
commit 5043695c78
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3 changed files with 11 additions and 10 deletions

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@ -398,7 +398,7 @@ ${helpers.predefined_type(
"computed::length::NonNegativeLengthPercentageOrNormal::normal()",
engines="gecko servo-2013",
alias="grid-column-gap" if engine == "gecko" else "",
extra_prefixes="moz",
extra_prefixes="moz:layout.css.prefixes.columns",
servo_2013_pref="layout.columns.enabled",
spec="https://drafts.csswg.org/css-align-3/#propdef-column-gap",
animation_value_type="NonNegativeLengthPercentageOrNormal",