RenderView renderView

The render tree that's attached to the output surface.

Source 

RenderView get renderView => _pipelineOwner.rootNode;
void renderView=(RenderView value)

Sets the given RenderView object (which must not be null), and its tree, to be the new render tree to display. The previous tree, if any, is detached.

Source 

set renderView(RenderView value) {
  assert(value != null);
  _pipelineOwner.rootNode = value;
}