Move automatic text track selection code to AutomaticTrackSelection helper

Source/core/html/HTMLMediaElement.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 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:
  * 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 183 matching lines @@
     blink::WebMediaPlayer::TrackId addAudioTrack(const String& id, blink::WebMediaPlayerClient::AudioTrackKind, const AtomicString& label, const AtomicString& language, bool enabled);
     void removeAudioTrack(blink::WebMediaPlayer::TrackId);
     blink::WebMediaPlayer::TrackId addVideoTrack(const String& id, blink::WebMediaPlayerClient::VideoTrackKind, const AtomicString& label, const AtomicString& language, bool selected);
     void removeVideoTrack(blink::WebMediaPlayer::TrackId);
 
     virtual void mediaPlayerDidAddTextTrack(blink::WebInbandTextTrack*) override final;
     virtual void mediaPlayerDidRemoveTextTrack(blink::WebInbandTextTrack*) override final;
     // FIXME: Remove this when WebMediaPlayerClientImpl::loadInternal does not depend on it.
     virtual KURL mediaPlayerPosterURL() override { return KURL(); }
 
-    class TrackGroup {
-        STACK_ALLOCATED();
-    public:
-        enum GroupKind { CaptionsAndSubtitles, Description, Chapter, Metadata, Other };
-
-        explicit TrackGroup(GroupKind kind)
-            : visibleTrack(nullptr)
-            , defaultTrack(nullptr)
-            , kind(kind)
-            , hasSrcLang(false)
-        {
-        }
-
-        WillBeHeapVector<RefPtrWillBeMember<TextTrack>> tracks;
-        RefPtrWillBeMember<TextTrack> visibleTrack;
-        RefPtrWillBeMember<TextTrack> defaultTrack;
-        GroupKind kind;
-        bool hasSrcLang;
-    };
-
-    void configureTextTrackGroupForLanguage(const TrackGroup&) const;
     void honorUserPreferencesForAutomaticTextTrackSelection();
-    void performAutomaticTextTrackSelection(const TrackGroup&);
-    void enableDefaultMetadataTextTracks(const TrackGroup&);
 
     bool textTracksAreReady() const;
     enum VisibilityChangeAssumption {
         AssumeNoVisibleChange,
         AssumeVisibleChange
     };
     void configureTextTrackDisplay(VisibilityChangeAssumption);
     void updateTextTrackDisplay();
     void textTrackReadyStateChanged(TextTrack*);
 
@@ skipping 396 matching lines @@
 inline bool isHTMLMediaElement(const HTMLElement& element)
 {
     return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } // namespace blink
 
 #endif // HTMLMediaElement_h