import android.support.customtabs.CustomTabsIntent;
import android.support.customtabs.CustomTabsService;
import android.support.customtabs.CustomTabsServiceConnection;
import android.support.customtabs.CustomTabsSession;
import android.support.v4.app.Fragment;
<BUG>import android.support.v4.app.FragmentTransaction;
</BUG>
import android.support.v4.content.ContextCompat;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.AlertDialog;

import android.support.customtabs.CustomTabsIntent;
import android.support.customtabs.CustomTabsService;
import android.support.customtabs.CustomTabsServiceConnection;
import android.support.customtabs.CustomTabsSession;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.content.ContextCompat;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.AlertDialog;
