Show media router toolbar icon ephemerally for active local routes and issues

chrome/browser/media/router/media_router_ui_service_factory.cc

Index: chrome/browser/media/router/media_router_ui_service_factory.cc
diff --git a/chrome/browser/media/router/media_router_ui_service_factory.cc b/chrome/browser/media/router/media_router_ui_service_factory.cc
index 73d86b42189171e429b11ecc17c9f581eba0bad4..8771d6e9983a4a4c3d4535b49d303da32bc03313 100644
--- a/chrome/browser/media/router/media_router_ui_service_factory.cc
+++ b/chrome/browser/media/router/media_router_ui_service_factory.cc
@@ -49,4 +49,16 @@ KeyedService* MediaRouterUIServiceFactory::BuildServiceInstanceFor(
   return new MediaRouterUIService(Profile::FromBrowserContext(context));
 }
 
+bool MediaRouterUIServiceFactory::ServiceIsCreatedWithBrowserContext() const {
+#if defined(ENABLE_MEDIA_ROUTER) && !defined(OS_ANDROID)
+  return true;
+#else
+  return false;
+#endif
+}
+
+bool MediaRouterUIServiceFactory::ServiceIsNULLWhileTesting() const {
+  return true;
+}
+
 }  // namespace media_router