Reftest for percentage units on viewport element breaking user units on graphics

layout/reftests/svg/reftest.list

@@ -8,3 +8,4 @@
 == rootElement-null-01.svg pass.svg
 == stroke-width-percentage-01.svg pass.svg
 == text-in-link-01.svg text-in-link-01-ref.svg
+== viewport-percent-graphic-user-01.svg pass.svg

layout/reftests/svg/viewport-percent-graphic-user-01.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1"
+     width="100%" height="100%">
+
+  <title>Testcase for percentage units on viewport and user units on graphic</title>
+
+  <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=367352 -->
+
+  <rect width="32767" height="32767" fill="lime"/>
+
+</svg>