@Override
        public int compareTo(LoadTask<?> loadTask) {
            int result = priority - loadTask.priority;
            if (result == 0) {
                result = order - loadTask.order;
            }
            return result;
        }
A {@link ThreadFactory} that builds threads with priority
{@link android.os.Process#THREAD_PRIORITY_BACKGROUND}.
core/src/main/java/com/bumptech/glide/load/engine/executor/FifoPriorityThreadPoolExecutor.java