#include "wtf/RefCounted.h"
#include "wtf/text/AtomicString.h"
-namespace WebCore {
+namespace blink {
class HTMLMediaElement;
RawPtrWillBeMember<HTMLMediaElement> m_mediaElement;
};
-} // namespace WebCore
+#define DEFINE_TRACK_TYPE_CASTS(thisType, predicate) \
+ DEFINE_TYPE_CASTS(thisType, TrackBase, track, track->type() == predicate, track.type() == predicate)
+
+} // namespace blink
#endif // TrackBase_h