[Media Router] Add a supports_web_ui_controller attribute to MediaRoute

chrome/common/media_router/mojo/media_router_struct_traits.cc

Index: chrome/common/media_router/mojo/media_router_struct_traits.cc
diff --git a/chrome/common/media_router/mojo/media_router_struct_traits.cc b/chrome/common/media_router/mojo/media_router_struct_traits.cc
index aa44fc6d4e495f2a790136deb1b4ac6c502cfb25..4e60d273adcacd45477cc131da8deb7800c0634d 100644
--- a/chrome/common/media_router/mojo/media_router_struct_traits.cc
+++ b/chrome/common/media_router/mojo/media_router_struct_traits.cc
@@ -203,6 +203,7 @@ bool StructTraits<media_router::mojom::MediaRouteDataView,
     out->set_custom_controller_path(*custom_controller_path);
 
   out->set_local(data.is_local());
+  out->set_supports_web_ui_controller(data.supports_web_ui_controller());
   out->set_for_display(data.for_display());
   out->set_incognito(data.is_incognito());
   out->set_offscreen_presentation(data.is_offscreen_presentation());