Making it so the Google layer is not visible if used as an overlay with visibility false. Container is offset to allow proper calculation of size. r=ahocevar (closes #2730)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10480 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

examples/all-overlays-google.js

@@ -0,0 +1,19 @@
+var map;
+
+function init() {
+
+    map = new OpenLayers.Map({
+        div: "map",
+        allOverlays: true
+    });
+
+    var osm = new OpenLayers.Layer.OSM();
+    var gmap = new OpenLayers.Layer.Google("Google Streets", {visibility: false});
+
+    // note that first layer must be visible
+    map.addLayers([osm, gmap]);
+
+    map.addControl(new OpenLayers.Control.LayerSwitcher());
+    map.zoomToMaxExtent();
+
+}