title: InfoWindow doesn't get displayed in Street View
body: <p>I'm trying to add a marker with a InfoWindow attached to it.
  The marker is visible in both maps i.e., Street view and normal map.
  But, InfoWindow only gets displayed in normal map but not when its opened in street view.</p>
  
  <p>There's no error in firebug console.</p>
  
  <p>The code :</p>
  
  <pre><code>var a = google.maps;
  var b = {
      center: new a.LatLng(parseFloat(ll[0]),parseFloat(ll[1])),
      zoom: zoom,
      mapTypeId: a.MapTypeId.ROADMAP,
      streetViewControl: true,
      mapTypeControlOptions: {
          mapTypeIds: [a.MapTypeId.ROADMAP, a.MapTypeId.SATELLITE, a.MapTypeId.TERRAIN]
      },
      panControl: false,
      zoomControlOptions: {
          style: a.ZoomControlStyle.SMALL
      }
  };
  map = new a.Map(document.getElementById("map-canvas"), b);
  
  panorama = map.getStreetView();
  panorama.setPosition(new google.maps.LatLng(42.345573,-71.098326));
  panorama.setPov(/** @type {google.maps.StreetViewPov} */({
      heading: 270,
      pitch: 0
  }));
  panorama.setVisible(false);
  
  iw = new a.InfoWindow();
  a.event.addListener(map, "click", function () {
      if (iw) iw.close()
  });
  
  var g = new a.Marker({
          position: c,
          map: map,
          clickable: true,
          draggable: true,
          optimized: false,
          raiseOnDrag: false,
          zIndex: highestOrder()
      });
  
  var description = "&lt;h2&gt;"+document.getElementById('marker-title').value+"&lt;/h2&gt;&lt;br/&gt;&lt;p style='width:200px;'&gt;"+document.getElementById('marker-desc').value+"&lt;/p&gt;";
  
  a.event.addListener(g, "click", function () {
      actual = g;
      iw.setContent(description);
      if(map.getStreetView().getVisible == true) {
          iw.open(map.getStreetView(), this);
      }
      else {
          iw.open(map, this);
      }
  });
  
  a.event.addListener(g, "dragstart", function () {
      if (actual == g) iw.close();
      z_index += 1;
      g.setZIndex(highestOrder())
  })
  </code></pre>