Merge cherrypicks of ['googleplex-android-review.googlesource.com/32649929'] into 25Q2-release.

import android.content.Context;

import android.content.Intent;

import android.os.Build;

import android.os.Process;

import android.os.UserHandle;

import android.os.UserManager;

import android.telephony.TelephonyManager;

import android.util.Log;

import com.android.settings.Settings.TestingSettingsActivity;

public class TestingSettingsBroadcastReceiver extends BroadcastReceiver {

    private final static String TAG = "TestingSettingsBroadcastReceiver";

    public TestingSettingsBroadcastReceiver() {

    }

        if (intent != null && intent.getAction() != null

                && intent.getAction().equals(TelephonyManager.ACTION_SECRET_CODE)

                && !isDisabled(context)) {

            UserManager userManager = context.getSystemService(UserManager.class);

            UserHandle currentUser = Process.myUserHandle();

            if (userManager != null) {

                if (userManager.getUserInfo(currentUser.hashCode()).isMain()) {

                    Intent i = new Intent(Intent.ACTION_MAIN);

                    i.setClass(context, TestingSettingsActivity.class);

                    i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

                    context.startActivity(i);

                } else {

                    Log.d(TAG, "Not main user, not starting TestingSettingsActivity.");

                }

            }

        }

    }