Keep track of when nodes are possibly distributed into shadow roots (when HTML-API elements have a Shadow root). This makes it easy to not render those nodes when we add WebGL (while traversing the tree). We'll render the distributed children deeper in the tree when we encounter them in their distributed locations.
Keep track of when nodes are possibly distributed into shadow roots
(when HTML-API elements have a Shadow root). This makes it easy to not
render those nodes when we add WebGL (while traversing the tree). We'll
render the distributed children deeper in the tree when we encounter
them in their distributed locations.

trusktr/infamous,trusktr/infamous,trusktr/infamous