From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 03:47:29 +0200
Subject: Adding upstream version 115.8.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../reftests/meta-viewport/dynamic-grow-width.html | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 layout/reftests/meta-viewport/dynamic-grow-width.html

(limited to 'layout/reftests/meta-viewport/dynamic-grow-width.html')
diff --git a/layout/reftests/meta-viewport/dynamic-grow-width.html b/layout/reftests/meta-viewport/dynamic-grow-width.html
new file mode 100644
index 0000000000..84084c2e52
--- /dev/null
+++ b/layout/reftests/meta-viewport/dynamic-grow-width.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta name="viewport" content="width=device-width, minimum-scale=0.5">
+<style>
+html {
+  overflow-x: hidden;
+}
+html, body {
+  margin: 0;
+  width: 100%;
+  height: 100%;
+}
+div {
+  height: 100%;
+  position: absolute;
+}
+</style>
+<div id="green" style="background: green; width: 100%;"></div>
+<div style="background: blue; width: 100%;"></div>
+<script>
+document.addEventListener('MozReftestInvalidate', () => {
+  // Grow width to generate overflow-x:hidden area but the content height is
+  // 100vh so that we don't scale down the contents (bug 1508177).
+  green.style.width = '200%';
+  requestAnimationFrame(() => {
+    document.documentElement.classList.remove('reftest-wait');
+  });
+});
+</script>
+</html>
-- 
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