src\osgplugins\osgjs\Animation(9): warning C4099: 'WriteVisitor': type name first seen using 'class' now seen using 'struct'

src/osgPlugins/osgjs/Animation

@@ -6,7 +6,7 @@
 #include <osgAnimation/Animation>
 #include <osgAnimation/UpdateMatrixTransform>
 
-struct WriteVisitor;
+class WriteVisitor;
 
 JSONObject* createJSONAnimation(osgAnimation::Animation* anim, WriteVisitor* writer);
 JSONObject* createJSONUpdateMatrixTransform(osgAnimation::UpdateMatrixTransform& acb, WriteVisitor* writer);