From 2d473aa999e8ea7963a471bd115a583793e8d6c6 Mon Sep 17 00:00:00 2001
From: networkException <git@nwex.de>
Date: Sat, 10 Sep 2022 12:43:05 +0200
Subject: [PATCH] LibWeb: Avoid copying viewport rect when converting length to
 pixels

See https://github.com/SerenityOS/serenity/pull/3433#discussion_r484570948
---
 Userland/Libraries/LibWeb/CSS/Length.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibWeb/CSS/Length.cpp b/Userland/Libraries/LibWeb/CSS/Length.cpp
index 941be4d220aec0d..bf8413e44548b57 100644
--- a/Userland/Libraries/LibWeb/CSS/Length.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Length.cpp
@@ -104,7 +104,7 @@ float Length::to_px(Layout::Node const& layout_node) const
 
     if (!layout_node.document().browsing_context())
         return 0;
-    auto viewport_rect = layout_node.document().browsing_context()->viewport_rect();
+    auto const& viewport_rect = layout_node.document().browsing_context()->viewport_rect();
     auto* root_element = layout_node.document().document_element();
     if (!root_element || !root_element->layout_node())
         return 0;