Rename TextTrackRegion/TextTrackRegionList to VTTRegion/VTTRegionList

LayoutTests/media/track/regions-webvtt/text-track-region-list-expected.txt

Index: LayoutTests/media/track/regions-webvtt/text-track-region-list-expected.txt
diff --git a/LayoutTests/media/track/regions-webvtt/text-track-region-list-expected.txt b/LayoutTests/media/track/regions-webvtt/text-track-region-list-expected.txt
deleted file mode 100644
index c500809aaf58a93c0ecaf0419ade9727a6f5dfc6..0000000000000000000000000000000000000000
--- a/LayoutTests/media/track/regions-webvtt/text-track-region-list-expected.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-Tests TextTrackRegionList functionality: length, operator[], and getRegionById()
-
-
-** Implicit mode disabled and the regions attribute is null **
-EXPECTED (testTrack.track.mode == 'disabled') OK
-EXPECTED (testTrack.track.regions == 'null') OK
-
-** The regions attribute should be an empty TextTrackRegionList **
-EXPECTED (regions != null == 'true') OK
-EXPECTED (regions.length == '0') OK
-
-** The default value of the track attribute of the region is null**
-EXPECTED (region.track == 'null') OK
-
-** The addRegion() method properly updates the TextTrackRegionList object **
-EXPECTED (regions.length == '1') OK
-EXPECTED (regions[0] == region == 'true') OK
-EXPECTED (regions[0].track == testTrack.track == 'true') OK
-
-** The track attribute should correctly reflect the track to which the region was added to**
-EXPECTED (region.track == testTrack.track == 'true') OK
-
-** Adding a region with an existing id should update the existing region **
-EXPECTED (regions[0].viewportAnchorX == '59') OK
-EXPECTED (regions[0].viewportAnchorY == '68') OK
-EXPECTED (regions[0].regionAnchorX == '20') OK
-EXPECTED (regions[0].regionAnchorY == '30') OK
-EXPECTED (regions[0].height == '5') OK
-EXPECTED (regions[0].width == '87') OK
-EXPECTED (regions[0].scroll == 'up') OK
-EXPECTED (regions[0] != updatedRegion == 'true') OK
-
-** Add the region back and check if removeRegion() removes it properly **
-EXPECTED (regions.length == '1') OK
-EXPECTED (regions.length == '0') OK
-
-** In case the region is not found, NotFoundError should be thrown **
-NotFoundError: An attempt was made to reference a Node in a context where it does not exist.
-
-END OF TEST
-