protected void setMaxConnections(int max) {
        int diff = max - getMaxConnections();
        incrementMaxConnections(diff);
    }
A {@link MaxConnectionsBasedStrategy} that resize itself based on callbacks from
{@link DynamicProperty}

@author awang
ribbon-transport/src/main/java/com/netflix/ribbon/transport/netty/DynamicPropertyBasedPoolStrategy.java