Initial implementation of AudioTrack, AudioTrackList, VideoTrack, and VideoTrackList.

Source/bindings/v8/custom/V8TrackEventCustom.cpp

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "V8TrackEvent.h"
 
+#include "V8AudioTrack.h"
 #include "V8TextTrack.h"
+#include "V8VideoTrack.h"
 #include "core/html/track/TrackBase.h"
 #include "core/html/track/TrackEvent.h"
 
 namespace WebCore {
 
 void V8TrackEvent::trackAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     TrackEvent* trackEvent = V8TrackEvent::toNative(info.Holder());
     TrackBase* track = trackEvent->track();
 
     if (!track) {
         v8SetReturnValueNull(info);
         return;
     }
 
     switch (track->type()) {
     case TrackBase::TextTrack:
         v8SetReturnValueFast(info, static_cast<TextTrack*>(track), trackEvent);
         return;
 
     case TrackBase::AudioTrack:
+        v8SetReturnValueFast(info, static_cast<AudioTrack*>(track), trackEvent);
+        return;
+
     case TrackBase::VideoTrack:
-        // This should not happen until VideoTrack and AudioTrack are implemented.
-        ASSERT_NOT_REACHED();
-        break;
+        v8SetReturnValueFast(info, static_cast<VideoTrack*>(track), trackEvent);
+        return;
     }
 
     v8SetReturnValueNull(info);
 }
 
 } // namespace WebCore