DataGrid inside InfoWindow doesn't show table data

[Kevin Workman]

I posted this on StackOverflow here 
<http://stackoverflow.com/questions/27847411/datagrid-inside-infowindow-doesnt-show-table-data>,
 
but nobody is biting, so I'm cross-posting here.

I'm using GWT along with the GoogleMaps GWT API (v3.8 
<https://code.google.com/p/gwt-google-apis/downloads/list>, and no, I can't 
use the branflakes GoogleMaps API).

I'm trying to put a DataGrid table inside an InfoWindow on the map. I have 
the DataGrid working fine as long as I display it outside the map, but 
whenever I add a DataGrid inside an InfoWindow, none of the table rows show 
up:

<http://i.stack.imgur.com/JmU9z.png>

If I right-click the InfoWindow, go to "inspect element", then trudge 
through the million divs that GWT creates, I can see that the data is 
there- it's just not visible for some reason.

I've done quite a bit of googling, but all I've seen is that a DataGrid has 
to be a child of a LayoutPanel or ScrollPanel. But that's exactly what I'm 
doing:

package com.test.client;
import java.util.Arrays;
import com.google.gwt.ajaxloader.client.AjaxLoader;import 
com.google.gwt.ajaxloader.client.AjaxLoader.AjaxLoaderOptions;import 
com.google.gwt.cell.client.TextCell;import 
com.google.gwt.core.client.EntryPoint;import 
com.google.gwt.dom.client.Document;import 
com.google.gwt.user.cellview.client.Column;import 
com.google.gwt.user.cellview.client.DataGrid;import 
com.google.gwt.user.client.ui.RootPanel;import 
com.google.gwt.user.client.ui.ScrollPanel;import 
com.google.maps.gwt.client.GoogleMap;import 
com.google.maps.gwt.client.InfoWindow;import 
com.google.maps.gwt.client.InfoWindowOptions;import 
com.google.maps.gwt.client.LatLng;import 
com.google.maps.gwt.client.MapOptions;import 
com.google.maps.gwt.client.MapTypeId;
public class GwtTest implements EntryPoint {

    @Override
    public void onModuleLoad() {
        AjaxLoaderOptions options = AjaxLoaderOptions.newInstance();
        options.setOtherParms("sensor=false");
        Runnable callback = new Runnable() {
            public void run() {
                createMap();
            }
        };
        AjaxLoader.loadApi("maps", "3", callback, options);

        //this works
        DataGrid dg = createTable();
        RootPanel.get("tableDiv").add(new ScrollPanel(dg));
    }

    public void createMap() {

        MapOptions mapOpts = MapOptions.create();
        mapOpts.setZoom(4);
        mapOpts.setCenter(LatLng.create(37.09024, -95.712891));
        mapOpts.setMapTypeId(MapTypeId.TERRAIN);
        mapOpts.setStreetViewControl(false);

        GoogleMap map = 
GoogleMap.create(Document.get().getElementById("map_canvas"), mapOpts);

        DataGrid dg = createTable();

        InfoWindowOptions iwo = InfoWindowOptions.create();
        iwo.setPosition(LatLng.create(37.09024, -95.712891));
        iwo.setContent(new ScrollPanel(dg).getElement());

        InfoWindow infoWindow = InfoWindow.create(iwo);
        infoWindow.open(map);
    }

    public DataGrid createTable(){
        Column columnA = new Column(new TextCell()){
            public Object getValue(Object object) {
                return "one";
            }
        };

        Column columnB = new Column(new TextCell()){
            public Object getValue(Object object) {
                return "two";
            }
        };

        Column columnC = new Column(new TextCell()){
            public Object getValue(Object object) {
                return "three";
            }
        };

        DataGrid dataGrid = new DataGrid();
        dataGrid.addColumn(columnA, "A");
        dataGrid.addColumn(columnB, "B");
        dataGrid.addColumn(columnC, "C");

        dataGrid.setRowCount(1);
        dataGrid.setRowData(Arrays.asList("one", "two", "three"));

        dataGrid.setWidth("200px");
        dataGrid.setHeight("100px");

        return dataGrid;
    }}


Is there some step I'm missing? How can I get a DataGrid to properly display 
inside an InfoWindow using the GoogleMaps API?

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