Revert "Revert "Dartium changes for custom element lifecycle events.""

Source/bindings/dart/DartCustomElementBinding.h

Index: Source/bindings/dart/DartCustomElementBinding.h
diff --git a/Source/modules/crypto/WorkerCrypto.h b/Source/bindings/dart/DartCustomElementBinding.h
similarity index 79%
copy from Source/modules/crypto/WorkerCrypto.h
copy to Source/bindings/dart/DartCustomElementBinding.h
index 2b72aba570ab975dac5e0c1c15bfd36d840c769e..98e702f3c8d142c90d4b92866b942b5529ef58fe 100644
--- a/Source/modules/crypto/WorkerCrypto.h
+++ b/Source/bindings/dart/DartCustomElementBinding.h
@@ -28,24 +28,27 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WorkerCrypto_h
-#define WorkerCrypto_h
+#ifndef DartCustomElementBinding_h
+#define DartCustomElementBinding_h
 
-#include "bindings/v8/ScriptWrappable.h"
-#include "wtf/Forward.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
+
+#include <dart_api.h>
 
 namespace WebCore {
 
-class WorkerCrypto : public ScriptWrappable, public RefCounted<WorkerCrypto> {
+class DartCustomElementBinding {
 public:
-    static PassRefPtr<WorkerCrypto> create() { return adoptRef(new WorkerCrypto()); }
+    static PassOwnPtr<DartCustomElementBinding> create(Dart_Handle customType);
+
+    Dart_PersistentHandle customType() { return m_customType; }
 
 private:
-    WorkerCrypto();
+    DartCustomElementBinding(Dart_Handle customType);
+    Dart_PersistentHandle m_customType;
 };
 
 }
 
-#endif
+#endif // CustomElementBinding_h