From b8a1df2bc251494223c14fc5b0925c4dc90f8eac Mon Sep 17 00:00:00 2001
From: JoeDow <ibluegalaxy_taoj@163.com>
Date: Wed, 23 Jul 2025 11:36:32 +0800
Subject: [PATCH] script: Use `NodeDamage::ContentOrHeritage` for slot changes
 (#38198)

This change aims to reduce the scope of incremental box tree
construction. Previously, when children of slot node changed, the slot
would always be marked as requiring box tree reconstruction; now, it is
adjusted to only mark the slot node as needing to recollect its box tree
children.

Testing: This should not change observable behavior and is thus covered
by existing WPT tests.

Signed-off-by: sharpshooter_pt <ibluegalaxy_taoj@163.com>
---
 components/script/dom/htmlslotelement.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/script/dom/htmlslotelement.rs b/components/script/dom/htmlslotelement.rs
index d995a78f139..0f77549a202 100644
--- a/components/script/dom/htmlslotelement.rs
+++ b/components/script/dom/htmlslotelement.rs
@@ -346,7 +346,7 @@ impl HTMLSlotElement {
 
     /// <https://dom.spec.whatwg.org/#signal-a-slot-change>
     pub(crate) fn signal_a_slot_change(&self) {
-        self.upcast::<Node>().dirty(NodeDamage::Other);
+        self.upcast::<Node>().dirty(NodeDamage::ContentOrHeritage);
 
         if self.is_in_agents_signal_slots.get() {
             return;