From f2dfe7f08c0230911e67b400297cc4f429639da5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Thu, 20 Aug 2020 10:45:42 +0000
Subject: [PATCH] style: Bail out when collecting invalidations for nested
 rules if any of them make us fully invalid.

Differential Revision: https://phabricator.services.mozilla.com/D87446
---
 components/style/invalidation/stylesheets.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/components/style/invalidation/stylesheets.rs b/components/style/invalidation/stylesheets.rs
index b5868883248..b50e04b0f0b 100644
--- a/components/style/invalidation/stylesheets.rs
+++ b/components/style/invalidation/stylesheets.rs
@@ -564,7 +564,10 @@ impl StylesheetInvalidationSet {
                 let rules =
                     EffectiveRulesIterator::effective_children(device, quirks_mode, guard, rule);
                 for rule in rules {
-                    self.collect_invalidations_for_rule(rule, guard, device, quirks_mode)
+                    self.collect_invalidations_for_rule(rule, guard, device, quirks_mode);
+                    if self.fully_invalid {
+                        break;
+                    }
                 }
             },
         }