Deprecated: [Media Router] Ensure dialog shows route details view if there is one local route

chrome/browser/ui/webui/media_router/media_router_ui.cc

Index: chrome/browser/ui/webui/media_router/media_router_ui.cc
diff --git a/chrome/browser/ui/webui/media_router/media_router_ui.cc b/chrome/browser/ui/webui/media_router/media_router_ui.cc
index 3374fc27a4c5285c2972b246aa0fd5e50e5f571d..4c219108c950b0ae2edf0f4e748841a551a7d8e8 100644
--- a/chrome/browser/ui/webui/media_router/media_router_ui.cc
+++ b/chrome/browser/ui/webui/media_router/media_router_ui.cc
@@ -164,6 +164,7 @@ MediaRouterUI::MediaRouterUI(content::WebUI* web_ui)
     : ConstrainedWebDialogUI(web_ui),
       handler_(new MediaRouterWebUIMessageHandler(this)),
       ui_initialized_(false),
+      initial_routes_received_(false),
       current_route_request_id_(-1),
       route_request_counter_(0),
       initiator_(nullptr),
@@ -366,6 +367,9 @@ void MediaRouterUI::UIInitialized() {
   if (!issues_observer_)
     issues_observer_.reset(new UIIssuesObserver(router_, this));
   issues_observer_->RegisterObserver();
+
+  if (initial_routes_received_)
+    handler_->UpdateRoutes(routes_, joinable_route_ids_, current_cast_modes_);
 }
 
 bool MediaRouterUI::CreateRoute(const MediaSink::Id& sink_id,
@@ -522,7 +526,8 @@ void MediaRouterUI::OnResultsUpdated(
 }
 
 void MediaRouterUI::SetIssue(const Issue* issue) {
-  if (ui_initialized_) handler_->UpdateIssue(issue);
+  if (ui_initialized_)
+    handler_->UpdateIssue(issue);
 }
 
 void MediaRouterUI::OnRoutesUpdated(
@@ -550,6 +555,8 @@ void MediaRouterUI::OnRoutesUpdated(
 
   if (ui_initialized_)
     handler_->UpdateRoutes(routes_, joinable_route_ids_, current_cast_modes_);
+  if (!initial_routes_received_)
+    initial_routes_received_ = true;
 }
 
 void MediaRouterUI::OnRouteResponseReceived(