style fix

packages/google_maps_flutter/google_maps_flutter/android/src/main/java/io/flutter/plugins/googlemaps/Convert.java

@@ -146,13 +146,6 @@ private static int toInt(Object o) {
     return ((Number) o).intValue();
   }
 
-  private static byte[] toByteArray(Object o) {
-    if (o == null) {
-      return null;
-    }
-    return (byte[]) o;
-  }
-
   static Object cameraPositionToJson(CameraPosition position) {
     if (position == null) {
       return null;
@@ -696,7 +689,10 @@ static String interpretTileOverlayOptions(Map<String, ?> data, TileOverlaySink s
   static Tile interpretTile(Map<String, ?> data) {
     int width = toInt(data.get("width"));
     int height = toInt(data.get("height"));
-    byte[] dataArray = toByteArray(data.get("data"));
+    byte[] dataArray = null;
+    if (data.get("data") != null) {
+      dataArray = (byte[]) data.get("data");
+    }
     return new Tile(width, height, dataArray);
   }
 }

packages/google_maps_flutter/google_maps_flutter/android/src/main/java/io/flutter/plugins/googlemaps/GoogleMapController.java

@@ -392,12 +392,12 @@ public void onSnapshotReady(Bitmap bitmap) {
         }
       case "tileOverlays#update":
         {
-          Object tileOverlaysToAdd = call.argument("tileOverlaysToAdd");
-          tileOverlaysController.addTileOverlays((List<Map<String, ?>>) tileOverlaysToAdd);
-          Object tileOverlaysToChange = call.argument("tileOverlaysToChange");
-          tileOverlaysController.changeTileOverlays((List<Map<String, ?>>) tileOverlaysToChange);
-          Object tileOverlaysToRemove = call.argument("tileOverlayIdsToRemove");
-          tileOverlaysController.removeTileOverlays((List<String>) tileOverlaysToRemove);
+          List<Map<String, ?>> tileOverlaysToAdd = call.argument("tileOverlaysToAdd");
+          tileOverlaysController.addTileOverlays(tileOverlaysToAdd);
+          List<Map<String, ?>> tileOverlaysToChange = call.argument("tileOverlaysToChange");
+          tileOverlaysController.changeTileOverlays(tileOverlaysToChange);
+          List<String> tileOverlaysToRemove = call.argument("tileOverlayIdsToRemove");
+          tileOverlaysController.removeTileOverlays(tileOverlaysToRemove);
           result.success(null);
           break;
         }