Remove TextTrack.regions and VTTRegionList

third_party/WebKit/Source/core/html/track/LoadableTextTrack.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 #ifndef LoadableTextTrack_h
 #define LoadableTextTrack_h
 
 #include "core/html/track/TextTrack.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Assertions.h"
 
 namespace blink {
 
 class HTMLTrackElement;
-class VTTRegion;
 
 class LoadableTextTrack final : public TextTrack {
  public:
   static LoadableTextTrack* create(HTMLTrackElement* track) {
     return new LoadableTextTrack(track);
   }
   ~LoadableTextTrack() override;
 
   // TextTrack method.
   void setMode(const AtomicString&) override;
 
-  void addRegions(const HeapVector<Member<VTTRegion>>&);
   using TextTrack::addListOfCues;
 
   size_t trackElementIndex() const;
   HTMLTrackElement* trackElement() { return m_trackElement; }
 
   bool isDefault() const override;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   explicit LoadableTextTrack(HTMLTrackElement*);
 
   Member<HTMLTrackElement> m_trackElement;
 };
 
 DEFINE_TYPE_CASTS(LoadableTextTrack,
                   TextTrack,
                   track,
                   track->trackType() == TextTrack::TrackElement,
                   track.trackType() == TextTrack::TrackElement);
 
 }  // namespace blink
 
 #endif  // LoadableTextTrack_h