From c3501084f0e5eb62e816779b6e22e429da9a7fbd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Mon, 7 Aug 2017 16:23:01 +0200
Subject: [PATCH] style: Don't pre-fill eager pseudo-maps.

This was needed long time ago for Servo's layout. But I don't think there's any
reason for doing this now.
---
 components/style/stylist.rs | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/components/style/stylist.rs b/components/style/stylist.rs
index f0b2dcc462c..9426ecd11f7 100644
--- a/components/style/stylist.rs
+++ b/components/style/stylist.rs
@@ -1646,14 +1646,10 @@ struct PerOriginCascadeData {
 
 impl PerOriginCascadeData {
     fn new() -> Self {
-        let mut data = PerOriginCascadeData {
+        Self {
             element_map: SelectorMap::new(),
             pseudos_map: Default::default(),
-        };
-        SelectorImpl::each_eagerly_cascaded_pseudo_element(|pseudo| {
-            data.pseudos_map.insert(pseudo, SelectorMap::new());
-        });
-        data
+        }
     }
 
     #[inline]
@@ -1677,11 +1673,7 @@ impl PerOriginCascadeData {
     }
 
     fn clear(&mut self) {
-        self.element_map = SelectorMap::new();
-        self.pseudos_map = Default::default();
-        SelectorImpl::each_eagerly_cascaded_pseudo_element(|pseudo| {
-            self.pseudos_map.insert(pseudo, SelectorMap::new());
-        });
+        *self = Self::new();
     }
 
     fn has_rules_for_pseudo(&self, pseudo: &PseudoElement) -> bool {