Added Dartium changes onto 45.0.2454.104

Source/bindings/core/dart/DartIsolateDestructionObserver.h

Index: Source/bindings/core/dart/DartIsolateDestructionObserver.h
diff --git a/Source/modules/mediasource/HTMLVideoElementMediaSource.h b/Source/bindings/core/dart/DartIsolateDestructionObserver.h
similarity index 75%
copy from Source/modules/mediasource/HTMLVideoElementMediaSource.h
copy to Source/bindings/core/dart/DartIsolateDestructionObserver.h
index 0dd929b079d16846a64e5d3bb18af70a7dbc70f0..a6264661a025048afccdd6aba8a5a772e79f84d7 100644
--- a/Source/modules/mediasource/HTMLVideoElementMediaSource.h
+++ b/Source/bindings/core/dart/DartIsolateDestructionObserver.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Google Inc. All rights reserved.
+ * Copyright (C) 2006-2012 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 +28,28 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef HTMLVideoElementMediaSource_h
-#define HTMLVideoElementMediaSource_h
+#ifndef DartIsolateDestructionObserver_h
+#define DartIsolateDestructionObserver_h
 
-#include "platform/heap/Handle.h"
-#include "wtf/PassRefPtr.h"
+#include <dart_api.h>
 
 namespace blink {
 
-class HTMLVideoElement;
-class VideoPlaybackQuality;
-
-class HTMLVideoElementMediaSource {
+class DartIsolateDestructionObserver {
 public:
-    static VideoPlaybackQuality* getVideoPlaybackQuality(HTMLVideoElement&);
+    DartIsolateDestructionObserver();
+    virtual ~DartIsolateDestructionObserver();
+
+    virtual void isolateDestroyed();
+
+    bool isIsolateAlive() { return m_isolate; }
+
+    Dart_Isolate isolate() { return m_isolate; }
 
 private:
-    HTMLVideoElementMediaSource();
-    ~HTMLVideoElementMediaSource();
+    Dart_Isolate m_isolate;
 };
 
 }
 
-#endif
+#endif // DartIsolateDestructionObserver_h