Merge changes from topic "schematize_car_props"

import android.graphics.Bitmap;

import android.graphics.drawable.BitmapDrawable;

import android.graphics.drawable.Drawable;

import android.os.SystemProperties;

import android.os.UserHandle;

import android.os.UserManager;

import android.sysprop.CarProperties;

import android.util.Log;

import com.android.internal.util.UserIcons;

@Deprecated

public final class UserManagerHelper {

    private static final String TAG = "UserManagerHelper";

    private static final String HEADLESS_SYSTEM_USER = "android.car.systemuser.headless";

    private final Context mContext;

    private final UserManager mUserManager;

    private final ActivityManager mActivityManager;

     * @return {@boolean true} if headless system user.

     */

    public boolean isHeadlessSystemUser() {

        return SystemProperties.getBoolean(HEADLESS_SYSTEM_USER, false);

        return CarProperties.headless_system_user().orElse(false);

    }

    /**

import android.app.ActivityManager;

import android.graphics.PixelFormat;

import android.graphics.drawable.Drawable;

import android.os.SystemProperties;

import android.sysprop.CarProperties;

import android.util.Log;

import android.view.Gravity;

import android.view.View;

        CarBatteryController.BatteryViewHandler {

    private static final String TAG = "CarStatusBar";

    public static final boolean ENABLE_HVAC_CONNECTION

            = !SystemProperties.getBoolean("android.car.hvac.demo", true);

            = !CarProperties.hvac_demo().orElse(true);

    private TaskStackListenerImpl mTaskStackListener;