Merge "Handle multithreading in ActiveGestureLog" into main

import java.io.PrintWriter;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Date;

import java.util.List;

import java.util.Locale;

    /** An entire log of entries associated with a single log ID */

    protected static class EventLog {

        protected final List<EventEntry> eventEntries = new ArrayList<>();

        protected final List<EventEntry> eventEntries =

                Collections.synchronizedList(new ArrayList<>());

        protected final int logId;

        protected final boolean mIsFullyGesturalNavMode;