Hook up Android closed captions 'enabled' setting to Blink

Source/core/html/track/TextTrackList.h

 /*
  * Copyright (C) 2011, 2012 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 58 matching lines @@
     DEFINE_ATTRIBUTE_EVENT_LISTENER(removetrack);
 
 #if !ENABLE(OILPAN)
     void clearOwner();
 #endif
     HTMLMediaElement* owner() const;
 
     void scheduleChangeEvent();
     void removeAllInbandTracks();
 
+    bool hasShowingTracks();

[philipj_slow, 2015/07/09 15:34:09]

const?

[srivats, 2015/07/09 21:25:37]

The method accesses item(i) which is not a const. Changing this to const
complains about item(i) discarding qualifiers.

[philipj_slow, 2015/07/09 22:36:26]

Acknowledged.

+
     DECLARE_VIRTUAL_TRACE();
 
 private:
     explicit TextTrackList(HTMLMediaElement*);
 
     void scheduleTrackEvent(const AtomicString& eventName, PassRefPtrWillBeRawPtr<TextTrack>);
 
     void scheduleAddTrackEvent(PassRefPtrWillBeRawPtr<TextTrack>);
     void scheduleRemoveTrackEvent(PassRefPtrWillBeRawPtr<TextTrack>);
 
     void invalidateTrackIndexesAfterTrack(TextTrack*);
 
     RawPtrWillBeMember<HTMLMediaElement> m_owner;
 
     OwnPtrWillBeMember<GenericEventQueue> m_asyncEventQueue;
 
     WillBeHeapVector<RefPtrWillBeMember<TextTrack>> m_addTrackTracks;
     WillBeHeapVector<RefPtrWillBeMember<TextTrack>> m_elementTracks;
     WillBeHeapVector<RefPtrWillBeMember<TextTrack>> m_inbandTracks;
 };
 
 } // namespace blink
 
 #endif // TextTrackList_h