Hixie 927edaac48 Rename RouteState to StateRoute
...for consistency with the other Route subclasses:
```
  dialog.dart:      class DialogRoute extends Route
  drag_target.dart: class DragRoute extends Route
  navigator.dart:   class PageRoute extends Route
  navigator.dart:   class StateRoute extends Route
  popup_menu.dart:  class MenuRoute extends Route
```
2015-10-01 12:57:20 -07:00
..
2015-10-01 12:57:20 -07:00