@SuppressWarnings("unchecked")
        @Override
        public boolean equals(Object o) {
            if (o instanceof LoadTask) {
                LoadTask<Object> other = (LoadTask<Object>) o;
                return order == other.order && priority == other.priority;
            }
            return false;
        }
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