var latlng = new google.maps.LatLng(38.269239, -122.276010);
    var myOptions = {
        zoom: 15,//Calculate this somehow?
        center: latlng,// Calculate value from array of coordinates?
        mapTypeId: google.maps.MapTypeId.HYBRID
    };

var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < coordinates.length; i++) {
    bounds.extend(coordinates[i]);
}

bounds.getCenter();

map.fitBounds(bounds);

var bounds = new google.maps.LatLngBounds();
      polyline.getPath().forEach(function(e){//can't do polyline.getPath()[i] because it's a MVCArray
          bounds.extend(e);
      })
      _map.fitBounds(bounds);

map.fitBounds(bounds);