Remove TextTrack.{add,remove}Region

third_party/WebKit/Source/core/html/track/TextTrack.cpp

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2011, 2012, 2013 Apple 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 283 matching lines @@
   // attribute must return a live VTTRegionList object that represents
   // the text track list of regions of the text track. Otherwise, it must
   // return null. When an object is returned, the same object must be returned
   // each time.
   if (RuntimeEnabledFeatures::webVTTRegionsEnabled() &&
       m_mode != disabledKeyword())
     return ensureVTTRegionList();
   return nullptr;
 }
 
-void TextTrack::addRegion(VTTRegion* region) {
-  if (!region)
-    return;
-
-  VTTRegionList* regionList = ensureVTTRegionList();
-
-  // 1. If the given region is in a text track list of regions, then remove
-  // region from that text track list of regions.
-  TextTrack* regionTrack = region->track();
-  if (regionTrack && regionTrack != this)
-    regionTrack->removeRegion(region, ASSERT_NO_EXCEPTION);
-
-  // 2. If the method's TextTrack object's text track list of regions contains
-  // a region with the same identifier as region replace the values of that
-  // region's width, height, anchor point, viewport anchor point and scroll
-  // attributes with those of region.
-  VTTRegion* existingRegion = regionList->getRegionById(region->id());
-  if (existingRegion) {
-    existingRegion->updateParametersFromRegion(region);
-    return;
-  }
-
-  // Otherwise: add region to the method's TextTrack object's text track
-  // list of regions.
-  region->setTrack(this);
-  regionList->add(region);
-}
-
-void TextTrack::removeRegion(VTTRegion* region,
-                             ExceptionState& exceptionState) {
-  if (!region)
-    return;
-
-  // 1. If the given region is not currently listed in the method's TextTrack
-  // object's text track list of regions, then throw a NotFoundError exception.
-  if (region->track() != this) {
-    exceptionState.throwDOMException(NotFoundError,
-                                     "The specified region is not listed in "
-                                     "the TextTrack's list of regions.");
-    return;
-  }
-
-  if (!m_regions || !m_regions->remove(region)) {
-    exceptionState.throwDOMException(InvalidStateError,
-                                     "Failed to remove the specified region.");
-    return;
-  }
-
-  region->setTrack(0);
-}
-
 void TextTrack::cueWillChange(TextTrackCue* cue) {
   // The cue may need to be repositioned in the media element's interval tree,
   // may need to be re-rendered, etc, so remove it before the modification...
   if (cueTimeline())
     cueTimeline()->removeCue(this, cue);
 }
 
 void TextTrack::cueDidChange(TextTrackCue* cue) {
   // This method is called through cue->track(), which should imply that this
   // track has a list of cues.
@@ skipping 87 matching lines @@
   visitor->trace(m_trackList);
   TrackBase::trace(visitor);
   EventTargetWithInlineData::trace(visitor);
 }
 
 DEFINE_TRACE_WRAPPERS(TextTrack) {
   visitor->traceWrappers(m_cues);
   EventTargetWithInlineData::traceWrappers(visitor);
 }
 }  // namespace blink