code: function fromEnvelopeToLatLngBounds_(extent) {
    var sr = spatialReferences_[extent.spatialReference.wkid || extent.spatialReference.wkt];
    sr = sr || WGS84;
    var sw = sr.inverse([extent.xmin, extent.ymin]);
    var ne = sr.inverse([extent.xmax, extent.ymax]);
    return new G.LatLngBounds(new G.LatLng(sw[1], sw[0]), new G.LatLng(ne[1], ne[0]));
  }
docs: Helper method to convert an Envelope object to <code>google.maps.LatLngBounds</code>
  @private
  @param {Object} extent
  @return {google.maps.LatLngBounds} gLatLngBounds