[Presentation API] (1st) (1-UA) Add is_offscreen_presentation attribute to MediaRouter

chrome/browser/media/router/mojo/media_router_type_converters.cc

Index: chrome/browser/media/router/mojo/media_router_type_converters.cc
diff --git a/chrome/browser/media/router/mojo/media_router_type_converters.cc b/chrome/browser/media/router/mojo/media_router_type_converters.cc
index 38aa4a77f99ae0391387817decf15cca0b2b3551..246cf3b19d10923537330ded864327db3e33f63e 100644
--- a/chrome/browser/media/router/mojo/media_router_type_converters.cc
+++ b/chrome/browser/media/router/mojo/media_router_type_converters.cc
@@ -81,6 +81,7 @@ TypeConverter<media_router::MediaRoute, MediaRoutePtr>::Convert(
       input->custom_controller_path.value_or(std::string()),
       input->for_display);
   media_route.set_incognito(input->is_incognito);
+  media_route.set_offscreen_presentation(input->is_offscreen_presentation);
   return media_route;
 }
 
@@ -97,6 +98,7 @@ TypeConverter<std::unique_ptr<media_router::MediaRoute>,
           input->custom_controller_path.value_or(std::string()),
           input->for_display));
   media_route->set_incognito(input->is_incognito);
+  media_route->set_offscreen_presentation(input->is_offscreen_presentation);
   return media_route;
 }