SceneHost constructor

SceneHost(dynamic exportTokenHandle)

Creates a host for a child scene.

The export token is bound to a scene graph node which acts as a container for the child's content. The creator of the scene host is responsible for sending the corresponding import token (the other endpoint of the event pair) to the child.

The export token is a dart:zircon Handle, but that type isn't available here. This is called by ChildViewConnection in //topaz/public/lib/ui/flutter/.

The scene host takes ownership of the provided export token handle.

Implementation 

SceneHost(dynamic exportTokenHandle) {
  _constructor(exportTokenHandle);
}