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

sky/engine/bindings-dart/core/dart/DartCustomElementBinding.h

Index: sky/engine/bindings-dart/core/dart/DartCustomElementBinding.h
diff --git a/sky/engine/core/Init.h b/sky/engine/bindings-dart/core/dart/DartCustomElementBinding.h
similarity index 74%
copy from sky/engine/core/Init.h
copy to sky/engine/bindings-dart/core/dart/DartCustomElementBinding.h
index 3f049c93857cb9f5059bcf05ca186e342d79e5d8..45e6792135e21ec7e91f3ea6db224c2da30ff328 100644
--- a/sky/engine/core/Init.h
+++ b/sky/engine/bindings-dart/core/dart/DartCustomElementBinding.h
@@ -28,29 +28,28 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SKY_ENGINE_CORE_INIT_H_
-#define SKY_ENGINE_CORE_INIT_H_
+#ifndef DartCustomElementBinding_h
+#define DartCustomElementBinding_h
+
+#include "wtf/PassOwnPtr.h"
+
+#include <dart_api.h>
 
 namespace blink {
 
-class CoreInitializer {
+class DartCustomElementBinding {
 public:
-    CoreInitializer() : m_isInited(false) { }
-    // Should be called by clients before trying to create Frames.
-    virtual void init();
+    static PassOwnPtr<DartCustomElementBinding> create(Dart_Handle customType, intptr_t nativeClassId);
 
-    // FIXME: Why is this function static?
-    static void shutdown();
-
-protected:
-    bool isInitialized() const { return m_isInited; }
+    Dart_PersistentHandle customType() { return m_customType; }
+    intptr_t nativeClassId() { return m_nativeClassId; }
 
 private:
-    void registerEventFactory();
-
-    bool m_isInited;
+    DartCustomElementBinding(Dart_Handle customType, intptr_t nativeClassId);
+    Dart_PersistentHandle m_customType;
+    intptr_t m_nativeClassId;
 };
 
-} // namespace blink
+}
 
-#endif  // SKY_ENGINE_CORE_INIT_H_
+#endif // CustomElementBinding_h