Media: Report HTMLMediaElement player errors to devtools console

third_party/WebKit/LayoutTests/media/media-reparent.html

 Test that reparenting a removed media tag doesn't crash the process.
 <!-- TODO(philipj): Convert test to testharness.js. crbug.com/588956
      (Please avoid writing new tests using video-test.js) -->
 <script src=video-test.js></script>
 <script>
 setTimeout(function(){
     var f = document.createElement('iframe');
     document.documentElement.appendChild(f);
     var w = f.contentWindow;
     var div = w.document.createElement('div');
-    div.innerHTML = '<audio src="1">';
+    div.innerHTML = '<audio src="1">';  // Attempt to load this URL should fail.
     var node = div;
     f.parentNode.removeChild(f);
     document.body.appendChild(node);
-    endTestLater();
+
+    // TODO(wolenetz,philipj): Avoid large timeout here by using
+    // waitForEventAndEnd('error') once that error event is reliably
+    // deliverable to the new parent. See https://crbug.com/600849.
+    // Larger than 250ms endTestLater() timeout is used here to prevent
+    // flakily missing console error log. If flakes recur, we may needxi

[philipj_slow, 2016/04/06 09:05:37]

s/needxi/need/

[wolenetz, 2016/04/06 20:16:04]

Done :)

+    // to increase it further.
+    setTimeout(endTest, 750);
 })
 </script>