code: public void applyProperties(PropertyMap properties) {
      	if (properties != null) {
  	    	mRawWindowSize = properties.getInt
  	    		("rawWindowSize", DEFAULT_RAW_WINDOW_SIZE);
  	    	mAggregateWindowSize = properties.getInt
  	    		("aggregateWindowSize", DEFAULT_AGGREGATE_WINDOW_SIZE);
  	    	reset();
      	}
      }
docs: This method applies properties from a stats block
  in the tea servlet config.
  
  @param properties