bool PaintWorklet::NeedsToCreateGlobalScope() {
  // "The user agent must have, and select from at least two
  // PaintWorkletGlobalScopes in the worklet's WorkletGlobalScopes list, unless
  // the user agent is under memory constraints."
  // https://drafts.css-houdini.org/css-paint-api-1/#drawing-an-image
  // TODO(nhiroki): In the current impl, we create only one global scope. We
  // should create at least two global scopes as the spec.
  return !GetNumberOfGlobalScopes();
}