TrackEvent.track should be (VideoTrack or AudioTrack or TextTrack)?

Source/bindings/core/v8/custom/V8TrackEventCustom.cpp

Index: Source/bindings/core/v8/custom/V8TrackEventCustom.cpp
diff --git a/Source/bindings/core/v8/custom/V8TrackEventCustom.cpp b/Source/bindings/core/v8/custom/V8TrackEventCustom.cpp
deleted file mode 100644
index 48846606754b3ef37f342a07a7ec5b58de81d27f..0000000000000000000000000000000000000000
--- a/Source/bindings/core/v8/custom/V8TrackEventCustom.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * 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 "bindings/core/v8/V8TrackEvent.h"
-
-#include "bindings/core/v8/V8AudioTrack.h"
-#include "bindings/core/v8/V8TextTrack.h"
-#include "bindings/core/v8/V8VideoTrack.h"
-#include "core/html/track/TrackBase.h"
-#include "core/html/track/TrackEvent.h"
-
-namespace blink {
-
-void V8TrackEvent::trackAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
-{
-    TrackEvent* trackEvent = V8TrackEvent::toImpl(info.Holder());
-    TrackBase* track = trackEvent->track();
-
-    if (!track) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-
-    switch (track->type()) {
-    case TrackBase::TextTrack:
-        v8SetReturnValueFast(info, toTextTrack(track), trackEvent);
-        return;
-
-    case TrackBase::AudioTrack:
-        v8SetReturnValueFast(info, toAudioTrack(track), trackEvent);
-        return;
-
-    case TrackBase::VideoTrack:
-        v8SetReturnValueFast(info, toVideoTrack(track), trackEvent);
-        return;
-    }
-
-    v8SetReturnValueNull(info);
-}
-
-} // namespace blink