From 303ea410e20a029e55427af11d28f770d982f5ee Mon Sep 17 00:00:00 2001
From: Boris Chiou <boris.chiou@gmail.com>
Date: Thu, 4 May 2023 21:35:14 +0000
Subject: [PATCH] style: Support self keyword for scroll()
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`self` keyword specifies to use the element’s own principal box as the
scroll container. If the principal box is not a scroll container, then the
scroll progress timeline is inactive.

Differential Revision: https://phabricator.services.mozilla.com/D175707
---
 components/style/values/specified/animation.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/style/values/specified/animation.rs b/components/style/values/specified/animation.rs
index d832cd5aa63..ad4fbc587c1 100644
--- a/components/style/values/specified/animation.rs
+++ b/components/style/values/specified/animation.rs
@@ -205,7 +205,9 @@ pub enum Scroller {
     Nearest,
     /// The document viewport as the scroll container.
     Root,
-    // FIXME: Bug 1814444. Support self keyword.
+    /// Specifies to use the element’s own principal box as the scroll container.
+    #[css(keyword = "self")]
+    SelfElement,
 }
 
 impl Scroller {