Remove totalFrameDelay test for getVideoPlaybackQuality()

This attribute was long ago cut from the spec and is not present in the
current VideoPlaybackQuality interface.

Bug: 644731
Change-Id: Icbea9bb3ce4eb9afb1530dde56a6f45930d7facc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1956496
Auto-Submit: Chrome Cunningham <chcunningham@chromium.org>
Reviewed-by: Matthew Wolenetz <wolenetz@chromium.org>
Commit-Queue: Chrome Cunningham <chcunningham@chromium.org>
Cr-Commit-Position: refs/heads/master@{#723570}

third_party/blink/web_tests/external/wpt/media-source/mediasource-getvideoplaybackquality.html

@@ -70,49 +70,6 @@
                   test.done();
               });
           }, "Test HTMLVideoElement.getVideoPlaybackQuality() with MediaSource API");
-
-
-          mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
-          {
-              var previousQuality = mediaElement.getVideoPlaybackQuality();
-              var timeUpdateCount = 0;
-              var startTime = 0;
-              mediaElement.addEventListener("timeupdate", test.step_func(function (e)
-              {
-                  var videoElement = e.target;
-                  var newQuality = videoElement.getVideoPlaybackQuality();
-                  var now = window.performance.now();
-
-                  assert_greater_than_equal(newQuality.totalFrameDelay, 0, "totalFrameDelay >= 0");
-                  assert_greater_than_equal(newQuality.totalFrameDelay, previousQuality.totalFrameDelay,
-                    "totalFrameDelay increases monotonically");
-                  assert_less_than(newQuality.totalFrameDelay, (now - startTime) / 1000,
-                    "totalFrameDelay does not exceed the time elapsed since playback started");
-
-                  previousQuality = newQuality;
-                  timeUpdateCount++;
-              }));
-
-              mediaElement.addEventListener('error', test.unreached_func("Unexpected event 'error'"));
-
-              sourceBuffer.appendBuffer(mediaData);
-              test.expectEvent(sourceBuffer, 'updateend', 'sourceBuffer');
-              test.waitForExpectedEvents(function()
-              {
-                  assert_false(sourceBuffer.updating, "updating");
-                  mediaSource.endOfStream();
-                  assert_less_than(mediaSource.duration, 10, "duration");
-                  startTime = window.performance.now();
-                  mediaElement.play().catch(test.unreached_func("Unexpected promise rejection"));
-                  test.expectEvent(mediaElement, 'ended', 'mediaElement');
-              });
-
-              test.waitForExpectedEvents(function()
-              {
-                  assert_greater_than(timeUpdateCount, 2, "timeUpdateCount");
-                  test.done();
-              });
-          }, "Test the totalFrameDelay attribute of HTMLVideoElement.getVideoPlaybackQuality() with MediaSource API");
         </script>
     </body>
 </html>