Revert "Persist settings on a normal priority thread."

package com.android.providers.settings;

import android.os.Handler;

import android.os.HandlerThread;

import android.os.Message;

import android.os.SystemClock;

import android.provider.Settings;

import android.util.Slog;

import android.util.Xml;

import com.android.internal.annotations.GuardedBy;

import com.android.internal.os.BackgroundThread;

import libcore.io.IoUtils;

import libcore.util.Objects;

import org.xmlpull.v1.XmlPullParser;

        final int settingCount = mSettings.size();

        for (int i = settingCount - 1; i >= 0; i--) {

            String name = mSettings.keyAt(i);

            // Settings defined by us are never dropped.

            // Settings defined by use are never dropped.

            if (Settings.System.PUBLIC_SETTINGS.contains(name)

                    || Settings.System.PRIVATE_SETTINGS.contains(name)) {

                continue;

        public static final int MSG_PERSIST_SETTINGS = 1;

        public MyHandler() {

            super(PersistThread.getInstance().getLooper());

            super(BackgroundThread.getHandler().getLooper());

        }

        @Override

            return true;

        }

    }

    private static final class PersistThread extends HandlerThread {

        private static final Object sLock = new Object();

        private static PersistThread sInstance;

        private PersistThread() {

            super("settings.persist");

        }

        public static PersistThread getInstance() {

            synchronized (sLock) {

                if (sInstance == null) {

                    sInstance = new PersistThread();

                    sInstance.start();

                }

                return sInstance;

            }

        }

    }

}