Add TODOs to convert from video-test.js to testharness.js

third_party/WebKit/LayoutTests/media/track/track-webvtt-tc010-no-timings.html

Index: third_party/WebKit/LayoutTests/media/track/track-webvtt-tc010-no-timings.html
diff --git a/third_party/WebKit/LayoutTests/media/track/track-webvtt-tc010-no-timings.html b/third_party/WebKit/LayoutTests/media/track/track-webvtt-tc010-no-timings.html
index b02db013686b83f8a62fd0dd39d7574a826b850e..c8146724ff75bd2755894384c69a87bb6dd17aba 100644
--- a/third_party/WebKit/LayoutTests/media/track/track-webvtt-tc010-no-timings.html
+++ b/third_party/WebKit/LayoutTests/media/track/track-webvtt-tc010-no-timings.html
@@ -4,20 +4,22 @@
         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 
         <script src=../media-file.js></script>
+        <!-- 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>            
- 
+        <script>
+
             function trackLoaded()
             {
                 findMediaElement();
-                var expected = 
+                var expected =
                 {
                     length : 0,
                     tests:
                     [],
                 };
                 testCues(0, expected);
-                
+
                 endTest();
             }