clean up media tests

third_party/WebKit/LayoutTests/media/autoplay-clears-autoplaying-flag.html

Index: third_party/WebKit/LayoutTests/media/autoplay-clears-autoplaying-flag.html
diff --git a/third_party/WebKit/LayoutTests/media/autoplay-clears-autoplaying-flag.html b/third_party/WebKit/LayoutTests/media/autoplay-clears-autoplaying-flag.html
index 779c683e3dd7d98f412a667e895968de979592c1..a6c5ba589bf26344e7f8407536bc94f05f33fadb 100644
--- a/third_party/WebKit/LayoutTests/media/autoplay-clears-autoplaying-flag.html
+++ b/third_party/WebKit/LayoutTests/media/autoplay-clears-autoplaying-flag.html
@@ -3,23 +3,20 @@
 <script src="../resources/testharness.js"></script>
 <script src="../resources/testharnessreport.js"></script>
 <script src="media-file.js"></script>
-<div id="log"></div>
 <script>
 async_test(function(t)
 {
-    var a = document.createElement('audio');
-    a.src = 'data:audio/wav;base64,UklGRjQAAABXQVZFZm10IBAAAAABAAEAQB8AAIA+AAACABAAZGF0YRAAAAAAAAAA//8CAP3/BAD7/wQA';
-    a.autoplay = true;
-    a.addEventListener('ended', function()
+    var audio = document.createElement('audio');
+    audio.src = 'data:audio/wav;base64,UklGRjQAAABXQVZFZm10IBAAAAABAAEAQB8AAIA+AAACABAAZGF0YRAAAAAAAAAA//8CAP3/BAD7/wQA';
+    audio.autoplay = true;
+    audio.addEventListener('ended', function()
     {
-        a.currentTime = 0;
+        audio.currentTime = 0;
     });
-    a.addEventListener('seeked', t.step_func(function()
+    audio.addEventListener('seeked', t.step_func_done(function()
     {
-        assert_true(a.paused);
-        assert_true(a.readyState == a.HAVE_ENOUGH_DATA);
-        t.done();
+        assert_true(audio.paused);
+        assert_true(audio.readyState == audio.HAVE_ENOUGH_DATA);
     }));
-    document.body.appendChild(a);
 });
 </script>