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

third_party/WebKit/LayoutTests/media/track/track-cues-enter-exit.html

Index: third_party/WebKit/LayoutTests/media/track/track-cues-enter-exit.html
diff --git a/third_party/WebKit/LayoutTests/media/track/track-cues-enter-exit.html b/third_party/WebKit/LayoutTests/media/track/track-cues-enter-exit.html
index e9531b5b0ee22cf11f44c4807ca3ba7c519a775d..364e6a6812aee790c4012279f64ca7da29179c60 100644
--- a/third_party/WebKit/LayoutTests/media/track/track-cues-enter-exit.html
+++ b/third_party/WebKit/LayoutTests/media/track/track-cues-enter-exit.html
@@ -4,9 +4,11 @@
         <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>
 
         var cueCount = 0;
         var currentCue;
@@ -53,13 +55,13 @@
         }
 
         waitForEvent('canplaythrough',
-            function () 
+            function ()
             {
                 videoCanPlayThrough = true;
                 attemptTests();
             }
         );
-        
+
         function loaded()
         {
             trackLoaded = true;