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

content/browser/presentation/presentation_type_converters.h

Index: content/browser/presentation/presentation_type_converters.h
diff --git a/content/browser/presentation/presentation_type_converters.h b/content/browser/presentation/presentation_type_converters.h
index 9285dfae09ebb676389ee65fdfc7c1fee6c132c6..e35130b664cf39722c1048c989a646ae4fcd51ee 100644
--- a/content/browser/presentation/presentation_type_converters.h
+++ b/content/browser/presentation/presentation_type_converters.h
@@ -33,6 +33,7 @@ struct TypeConverter<blink::mojom::PresentationSessionInfoPtr,
         blink::mojom::PresentationSessionInfo::New());
     output->url = input.presentation_url;
     output->id = input.presentation_id;
+    output->is_offscreen = input.is_offscreen;
     return output;
   }
 };
@@ -42,7 +43,8 @@ struct TypeConverter<content::PresentationSessionInfo,
                      blink::mojom::PresentationSessionInfoPtr> {
   static content::PresentationSessionInfo Convert(
       const blink::mojom::PresentationSessionInfoPtr& input) {
-    return content::PresentationSessionInfo(input->url, input->id);
+    return content::PresentationSessionInfo(input->url, input->id,
+                                            input->is_offscreen);
   }
 };