Remove kMediaTextTrackList and kMediaTrackSelectionCheckmark

This should have been removed with
https://chromium-review.googlesource.com/c/chromium/src/+/1379178
but I guess was missed.

Bug: 836549
Change-Id: I452b29f252cb6664281388ab5866ddad8005a48b
Reviewed-on: https://chromium-review.googlesource.com/c/1437702Reviewed-by: Tommy Steimel <steimel@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: CJ DiMeglio <lethalantidote@chromium.org>
Cr-Commit-Position: refs/heads/master@{#626315}

third_party/blink/renderer/modules/accessibility/ax_media_controls.cc

@@ -62,9 +62,7 @@ AXObject* AccessibilityMediaControl::Create(
       return AXMediaControlsContainer::Create(layout_object, ax_object_cache);
 
     case kMediaSliderThumb:
-    case kMediaTextTrackList:
     case kMediaTimelineContainer:
-    case kMediaTrackSelectionCheckmark:
     case kMediaCastOffButton:
     case kMediaCastOnButton:
     case kMediaOverlayCastOffButton:
@@ -123,9 +121,7 @@ String AccessibilityMediaControl::TextAlternative(
     case kMediaOverflowButton:
       return QueryString(WebLocalizedString::kAXMediaOverflowButton);
     case kMediaSliderThumb:
-    case kMediaTextTrackList:
     case kMediaTimelineContainer:
-    case kMediaTrackSelectionCheckmark:
     case kMediaControlsPanel:
     case kMediaOverflowList:
     case kMediaScrubbingMessage:
@@ -162,9 +158,7 @@ String AccessibilityMediaControl::Description(
     case kMediaOverlayCastOnButton:
       return "";
     case kMediaSliderThumb:
-    case kMediaTextTrackList:
     case kMediaTimelineContainer:
-    case kMediaTrackSelectionCheckmark:
     case kMediaControlsPanel:
     case kMediaOverflowList:
     case kMediaScrubbingMessage:
@@ -202,13 +196,11 @@ ax::mojom::Role AccessibilityMediaControl::RoleValue() const {
       return ax::mojom::Role::kButton;
 
     case kMediaTimelineContainer:
-    case kMediaTextTrackList:
     case kMediaOverflowList:
       return ax::mojom::Role::kGroup;
 
     case kMediaControlsPanel:
     case kMediaSliderThumb:
-    case kMediaTrackSelectionCheckmark:
     case kMediaScrubbingMessage:
     case kMediaAnimatedArrowContainer:
       return ax::mojom::Role::kUnknown;

third_party/blink/renderer/modules/media_controls/elements/media_control_element_type.h

@@ -11,9 +11,7 @@
 enum MediaControlElementType {
   kMediaSlider,
   kMediaSliderThumb,
-  kMediaTextTrackList,
   kMediaTimelineContainer,
-  kMediaTrackSelectionCheckmark,
   kMediaControlsPanel,
   kMediaCastOffButton,
   kMediaCastOnButton,

third_party/blink/renderer/modules/media_controls/elements/media_control_text_track_list_element.cc

@@ -51,7 +51,7 @@ bool HasDuplicateLabel(TextTrack* current_track) {
 
 MediaControlTextTrackListElement::MediaControlTextTrackListElement(
     MediaControlsImpl& media_controls)
-    : MediaControlPopupMenuElement(media_controls, kMediaTextTrackList) {
+    : MediaControlPopupMenuElement(media_controls, kMediaIgnore) {
   setAttribute(html_names::kRoleAttr, "menu");
   setAttribute(html_names::kAriaLabelAttr,
                WTF::AtomicString(GetLocale().QueryString(