Android Studio : openweb2 by customtabs

MainActivity.java

package com.thaiall.www.openweb2;
import android.support.v7.app.AppCompatActivity;
//import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;
//import android.support.customtabs.CustomTabsClient;
import android.support.customtabs.CustomTabsIntent;
//import android.support.customtabs.CustomTabsServiceConnection;
//import android.support.customtabs.CustomTabsSession;
import android.support.v4.content.ContextCompat;

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Use a CustomTabsIntent.Builder to configure CustomTabsIntent.
        String url = "http://www.thaiall.com/actress/missgrand2017";
        CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
// set toolbar color and/or setting custom actions before invoking build()
// Once ready, call CustomTabsIntent.Builder.build() to create a CustomTabsIntent
        CustomTabsIntent customTabsIntent = builder.build();
// and launch the desired Url with CustomTabsIntent.launchUrl()
        customTabsIntent.launchUrl(this, Uri.parse(url));
// set toolbar color
        builder.setToolbarColor(ContextCompat.getColor(this, R.color.colorAccent));
// add share action to menu list
        builder.addDefaultShareMenuItem();
    }
}