title: Maps API icon.scaledSize not working
body: <p>I want to make Maps API <strong>icon.scaledSize</strong> work like in JSFiddle  <a href="https://jsfiddle.net/z2mzzry4/1/" rel="nofollow noreferrer">https://jsfiddle.net/z2mzzry4/1/</a>, but i can't. Icons remain at the same size. </p>
  
  <p>I'm working in the folowing code:</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
    &lt;head&gt;
      &lt;title&gt;Simple Map&lt;/title&gt;
      &lt;meta name="viewport" content="initial-scale=1.0"&gt;
      &lt;meta charset="utf-8"&gt;
      &lt;style&gt;
        #map {
          height: 100%;
        }
        html, body {
          height: 100%;
          margin: 0;
          padding: 0;
        }
      &lt;/style&gt;
    &lt;/head&gt;
    &lt;body&gt;
      &lt;div id="map"&gt;&lt;/div&gt;
      &lt;script&gt;
        var map;
        function initMap() {
          map = new google.maps.Map(document.getElementById('map'), {
            center: {lat: -3.5679, lng: -39.12},
            zoom: 8
          });
          var marker2 = new google.maps.Marker
          ({
            position: new google.maps.LatLng(-3.5679, -39.12),
            title: 'Sample 2',
            draggable: false,
            map: map,
            icon: 'http://icons.iconarchive.com/icons/paomedia/small-n-flat/48/map-marker-icon.png',
          });
          marker2.icon.scaledSize = new google.maps.Size(2 * 50, 2 * 50);
          var marker3 = new google.maps.Marker
          ({
            position: new google.maps.LatLng(-3.5679, -39.1295),
            title: 'Sample 3',
            draggable: false,
            map: map,
            icon: 'http://icons.iconarchive.com/icons/paomedia/small-n-flat/48/map-marker-icon.png',
           });
           marker3.icon.scaledSize = new google.maps.Size(3 * 50, 3 * 50);
        }
      &lt;/script&gt;
      &lt;script async defer src="https://maps.googleapis.com/maps/api/js?key=MYKEY&amp;callback=initMap"&gt;&lt;/script&gt;
    &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>I've browsed in many internet sites, but I can't figure out the problem.</p>
  
  <p>What's wrong?</p>