Remove dependency on ui from view_manager.

mojo/converters/geometry/geometry_type_converters.h

Index: mojo/converters/geometry/geometry_type_converters.h
diff --git a/mojo/converters/geometry/geometry_type_converters.h b/mojo/converters/geometry/geometry_type_converters.h
index ee9ea72c8337f157d3a3765de388ded9fa2fdd21..5d523746d65da51e9794adf5f1b3d602443a067c 100644
--- a/mojo/converters/geometry/geometry_type_converters.h
+++ b/mojo/converters/geometry/geometry_type_converters.h
@@ -69,6 +69,15 @@ struct MOJO_GEOMETRY_EXPORT TypeConverter<gfx::Transform, TransformPtr> {
   static gfx::Transform Convert(const TransformPtr& input);
 };
 
+template <>
+struct MOJO_GEOMETRY_EXPORT TypeConverter<Rect, gfx::Rect> {
+  static Rect Convert(const gfx::Rect& input);
+};
+template <>
+struct MOJO_GEOMETRY_EXPORT TypeConverter<gfx::Rect, Rect> {
+  static gfx::Rect Convert(const Rect& input);
+};
+
 }  // namespace mojo
 
 #endif  // MOJO_CONVERTERS_GEOMETRY_GEOMETRY_TYPE_CONVERTERS_H_