import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

docshell/test/browser/timelineMarkers-04.html

@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="utf-8"></meta>
+  <title>markers test</title>
+</head>
+<body>
+
+  <p>Test page</p>
+
+  <script>
+    function do_xhr() {
+      const theURL = "timelineMarkers-04.html";
+
+      xhr = new XMLHttpRequest();
+      xhr.onreadystatechange = function() {
+        dump("ReadyState = " + xhr.readyState + "\n");
+      };
+      xhr.open("get", theURL, true);
+      xhr.send();
+    }
+
+    window.addEventListener("dog", do_xhr, true);
+
+    function do_promise() {
+      new Promise(function(resolve, reject) {
+	console.time("Bob");
+	window.setTimeout(function() {
+          resolve(23);
+	}, 10);
+      }).then(function (val) {
+        console.timeEnd("Bob");
+      });
+    }
+
+    window.addEventListener("promisetest", do_promise, true);
+
+    var globalResolver;
+    function do_promise_script() {
+      new Promise(function(resolve, reject) {
+	console.time("Bob");
+        globalResolver = resolve;
+	window.setTimeout("globalResolver(23);", 10);
+      }).then(function (val) {
+        console.timeEnd("Bob");
+      });
+    }
+
+    window.addEventListener("promisescript", do_promise_script, true);
+
+  </script>
+
+</body>
+</html>
+