style: Split collect_style_attribute_and_animation_rules.

Animations are their own cascade level per https://drafts.csswg.org/css-cascade-4/#cascade-origin

Differential Revision: https://phabricator.services.mozilla.com/D52575

1 files changed, 5 insertions, 2 deletions

diff --git a/components/style/rule_collector.rs b/components/style/rule_collector.rs
index f536b80b5c5..dd50d846715 100644
--- a/components/style/rule_collector.rs
+++ b/components/style/rule_collector.rs
@@ -377,7 +377,7 @@ where
         }
     }
 
-    fn collect_style_attribute_and_animation_rules(&mut self) {
+    fn collect_style_attribute(&mut self) {
         if let Some(sa) = self.style_attribute {
             self.rules
                 .push(ApplicableDeclarationBlock::from_declarations(
@@ -385,7 +385,9 @@ where
                     CascadeLevel::StyleAttributeNormal,
                 ));
         }
+    }
 
+    fn collect_animation_rules(&mut self) {
         if let Some(so) = self.smil_override {
             self.rules
                 .push(ApplicableDeclarationBlock::from_declarations(
@@ -436,6 +438,7 @@ where
         self.collect_normal_rules_from_containing_shadow_tree();
         self.collect_document_author_rules();
         self.collect_part_rules();
-        self.collect_style_attribute_and_animation_rules();
+        self.collect_style_attribute();
+        self.collect_animation_rules();
     }
 }