Bug 1700232 - Add the crash test. r=jnicol

Differential Revision: https://phabricator.services.mozilla.com/D110402

gfx/tests/crashtests/1700232.html

@@ -0,0 +1,14 @@
+<!--
+    This test case was found by fuzzing. It creates a radial gradient which ends up empty when its rendered size is rounded to integer values.
+-->
+<script>
+window.onload = () => {
+  document.getElementById('a').style.cssText += "background-size:1%"
+}
+</script>
+<style>
+#a {
+  background-image: radial-gradient(ellipse 10% 4%, transparent 285.23vmin, #cc9, rgba(9, 237, 237, 0.07), white);
+</style>
+<i id='a'>
+&#x08F;&#x29;&#xAE;&#xFF;&#xE9;&#xB43;

gfx/tests/crashtests/crashtests.list

@@ -203,3 +203,4 @@ load 1679477-1.html
 skip-if(Android) pref(dom.disable_open_during_load,false) load 1685009-1.html
 load 1694783-1.html
 load 1695782-1.html
+load 1700232.html