Modify the google analytics request params in the google top content plugin

modify-google-top-content-query-params.php

<?php
/**
 * Change metric from 'ga:pageViews' for top-content widget and shortcode
 *
 * @link  https://ga-dev-tools.appspot.com/query-explorer/ Google's Query Explorer for more info
 * 
 * @param  array  $params Array of request params
 *
 * @return array          Modified array of request params
 */
function gtc_modify_request_metric( $params ) {
	
	$params['metrics'] = 'ga:uniquePageviews';

	return $params;
}
add_filter( 'gtc_analytics_top_content_shortcode_request_params', 'gtc_modify_request_metric' );
add_filter( 'gtc_analytics_top_content_widget_request_params', 'gtc_modify_request_metric' );