import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

layout/reftests/svg/dynamic-attr-removal-2.svg

@@ -0,0 +1,26 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
+
+    <defs>
+        <style type="text/css">
+	    rect { fill: red; }
+            rect:not([transform="scale(2)"]) { fill: lime }
+        </style>
+    </defs>
+
+    <g fill="lime">
+        <rect id="rect" transform="scale(2)" width="100%" height="100%" />
+    </g>
+
+    <script>
+        window.addEventListener(
+            "load",
+            function() { document.getElementById("rect").removeAttributeNS(null, "transform"); },
+            false
+        );
+    </script>
+
+</svg>