import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

layout/reftests/svg/smil/syncbase/cycle-self-ref-4.svg

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     class="reftest-wait"
+     onload="byeByeB()">
+  <script xlink:href="../smil-util.js" type="text/javascript"/>
+  <script type="text/javascript">
+  function byeByeB()
+  {
+    document.documentElement.pauseAnimations();
+    document.documentElement.setCurrentTime(0);
+    // Drop b
+    var b = document.getElementById('b');
+    b.parentNode.removeChild(b);
+    b = null;
+    // Snapshot at time t=4s. This is because there are two possible error cases
+    // we want to detect:
+    // i) b disappears and we just keep the existing time for a.begin+1s of t=2s
+    // ii) b disappears and we update the time for a.begin+1s to t=3s
+    setTimeAndSnapshot(4, false);
+  }
+  </script>
+  <!-- We have an arrangement where a is dependent on b and itself. If b's
+       interval disappears while a is still in the waiting state then the begin
+       time "a.begin+1s" should disappear too since a never begun. -->
+  <rect width="100" height="100" fill="green">
+    <set id="a" attributeName="fill" attributeType="CSS" to="red"
+      begin="b.begin; a.begin+1s"/>
+    <set id="b" attributeName="y" attributeType="XML" to="0"
+      begin="1s"/>
+  </rect>
+</svg>