Import Dart bindings as of Blink r188698. This merely copies the files over and does not attach any…

sky/engine/bindings-dart/core/dart/custom/DartTrackEventCustom.cpp

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 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/dart/DartTrackEvent.h"
+
+#include "bindings/core/dart/DartTextTrack.h"
+#include "core/html/track/TrackBase.h"
+#include "core/html/track/TrackEvent.h"
+
+
+namespace blink {
+
+namespace DartTrackEventInternal {
+
+void trackGetter(Dart_NativeArguments args)
+{
+    TrackEvent* trackEvent = DartDOMWrapper::receiver<TrackEvent>(args);
+    TrackBase* track = trackEvent->track();
+
+    if (!track)
+        return;
+
+    switch (track->type()) {
+    case TrackBase::TextTrack:
+        DartTextTrack::returnToDart(args, static_cast<TextTrack*>(track));
+        return;
+    case TrackBase::AudioTrack:
+    case TrackBase::VideoTrack:
+        // This should not happen until VideoTrack and AudioTrack are implemented.
+        ASSERT_NOT_REACHED();
+        break;
+    }
+
+}
+
+}
+
+}