Added Dartium changes onto 45.0.2454.104

Source/bindings/core/dart/DartCallback.h

Index: Source/bindings/core/dart/DartCallback.h
diff --git a/Source/modules/mediasource/HTMLVideoElementMediaSource.h b/Source/bindings/core/dart/DartCallback.h
similarity index 77%
copy from Source/modules/mediasource/HTMLVideoElementMediaSource.h
copy to Source/bindings/core/dart/DartCallback.h
index 0dd929b079d16846a64e5d3bb18af70a7dbc70f0..87e23a9da30afbfca5d0331de5032dacdb3aa884 100644
--- a/Source/modules/mediasource/HTMLVideoElementMediaSource.h
+++ b/Source/bindings/core/dart/DartCallback.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Google Inc. All rights reserved.
+ * Copyright (C) 2006-2011 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
@@ -28,26 +28,27 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef HTMLVideoElementMediaSource_h
-#define HTMLVideoElementMediaSource_h
+#ifndef DartCallback_h
+#define DartCallback_h
 
-#include "platform/heap/Handle.h"
-#include "wtf/PassRefPtr.h"
+#include "bindings/core/dart/DartIsolateDestructionObserver.h"
 
-namespace blink {
+#include <dart_api.h>
 
-class HTMLVideoElement;
-class VideoPlaybackQuality;
+namespace blink {
 
-class HTMLVideoElementMediaSource {
+class DartCallback : public DartIsolateDestructionObserver {
 public:
-    static VideoPlaybackQuality* getVideoPlaybackQuality(HTMLVideoElement&);
+    DartCallback(Dart_Handle object, Dart_Handle& exception);
+
+    ~DartCallback();
+
+    bool handleEvent(int argc, Dart_Handle* argv);
 
 private:
-    HTMLVideoElementMediaSource();
-    ~HTMLVideoElementMediaSource();
+    Dart_PersistentHandle m_callback;
 };
 
 }
 
-#endif
+#endif // DartCallback_h