[Media Router] Handle multiple Presentation URLs when creating routes

chrome/browser/media/router/route_request_result.cc

Index: chrome/browser/media/router/route_request_result.cc
diff --git a/chrome/browser/media/router/route_request_result.cc b/chrome/browser/media/router/route_request_result.cc
index 62a257e8775297b29dcecd51e69d411892ae6dc4..7f6f22698b8efebff499d74671599df7637dd33b 100644
--- a/chrome/browser/media/router/route_request_result.cc
+++ b/chrome/browser/media/router/route_request_result.cc
@@ -33,7 +33,10 @@ RouteRequestResult::RouteRequestResult(std::unique_ptr<MediaRoute> route,
     : route_(std::move(route)),
       presentation_id_(presentation_id),
       error_(error),
-      result_code_(result_code) {}
+      result_code_(result_code) {
+  if (route_)
+    presentation_url_ = route_->media_source().url();
+}
 
 RouteRequestResult::~RouteRequestResult() = default;