code: public ChromeOptions setExperimentalOption(String name, Object value) {
      experimentalOptions.put(checkNotNull(name), value);
      return this;
    }
docs: Sets an experimental option. Useful for new ChromeDriver options not yet
  exposed through the {@link ChromeOptions} API.
  
  @param name Name of the experimental option.
  @param value Value of the experimental option, which must be convertible
  to JSON.