@Override
    public void println(int priority, String tag, String msg, Throwable tr) {
        if (mNext != null) {
            getNext().println(Log.NONE, null, msg, null);
        }
    }
Takes the "next" LogNode as a parameter, to simplify chaining.

@param next The next LogNode in the pipeline.
SwipeRefreshLayoutBasic/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java