Convert track tests from video-test.js to testharness.js based

third_party/WebKit/LayoutTests/media/track/track-cue-negative-timestamp-expected.txt

Index: third_party/WebKit/LayoutTests/media/track/track-cue-negative-timestamp-expected.txt
diff --git a/third_party/WebKit/LayoutTests/media/track/track-cue-negative-timestamp-expected.txt b/third_party/WebKit/LayoutTests/media/track/track-cue-negative-timestamp-expected.txt
deleted file mode 100644
index 4c2d4cdb09b88d0e6ad183b0c4f476e4b3ba0a5c..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/media/track/track-cue-negative-timestamp-expected.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Tests negative timestamps.
-
-Test that cues with negative startTime are not added:
-EXPECTED (testTrack.track.cues.length == '4') OK
-RUN(textCue = new VTTCue(-3439332606, 3.4, 'Sausage?'))
-RUN(testTrack.track.addCue(textCue))
-EXPECTED (testTrack.track.cues.length == '4') OK
-
-Test that cues with negative startTime and negative endTime are not added:
-EXPECTED (testTrack.track.cues.length == '4') OK
-RUN(textCue = new VTTCue(-110, -3.4, 'Pepperoni?'))
-RUN(testTrack.track.addCue(textCue))
-EXPECTED (testTrack.track.cues.length == '4') OK
-
-Test that setting startTime and endTime to negative values does not affect the value:
-EXPECTED (testTrack.track.cues[3].startTime == '121') OK
-RUN(testTrack.track.cues[3].startTime = -5)
-EXPECTED (testTrack.track.cues[3].startTime == '121') OK
-EXPECTED (testTrack.track.cues[3].endTime == '361200.5') OK
-RUN(testTrack.track.cues[3].endTime = -3439332606)
-EXPECTED (testTrack.track.cues[3].endTime == '361200.5') OK
-END OF TEST
-