I want to realize the app for using the web app in Chrome.

String urlString="http://www.google.com";
Intent = new Intent(Intent.ACTION_VIEW, Uri.parse(urlString)));
int.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
int.setPackage("com.android.chrome");
try{
    // Open in Chrome if Chrome is installed
    startActivity (intent);
} catch(ActivityNotFoundExceptionex){
    // Download if Chrome is not found
    startActivity(newIntent(Intent.ACTION_VIEW,    
        Uri.parse("market://details?id=com.android.chrome"));
}