* @param serverPort the server port
* @param browser the browser
* @param contextPathURL the context path url
*/
public GrapheneSeleniumImpl(String serverHost, int serverPort, Browser browser, URL contextPathURL) {
CommandProcessor commandProcessor = new HttpCommandProcessor(serverHost, serverPort,
browser.inSeleniumRepresentation(), contextPathURL.toString());
interceptionProxy = new CommandInterceptorProxyImpl(commandProcessor);
selenium = new ExtendedSelenium(interceptionProxy.getCommandProcessorProxy());
pageExtensions = new PageExtensionsImpl();
seleniumExtensions = new SeleniumExtensionsImpl();