Add MarkAlternativeServiceRecentlyBroken.

net/http/http_server_properties_manager.cc

Index: net/http/http_server_properties_manager.cc
diff --git a/net/http/http_server_properties_manager.cc b/net/http/http_server_properties_manager.cc
index 9572c899e3d4a5fa3cef8402d262dd5fc8a024d7..1c4bc235a3152f06682f619d7dda8436572c3fe2 100644
--- a/net/http/http_server_properties_manager.cc
+++ b/net/http/http_server_properties_manager.cc
@@ -204,6 +204,14 @@ void HttpServerPropertiesManager::SetBrokenAlternateProtocol(
   ScheduleUpdatePrefsOnNetworkThread();
 }
 
+void HttpServerPropertiesManager::MarkAlternativeServiceRecentlyBroken(
+    const AlternativeService& alternative_service) {
+  DCHECK(network_task_runner_->RunsTasksOnCurrentThread());
+  http_server_properties_impl_->MarkAlternativeServiceRecentlyBroken(
+      alternative_service);
+  ScheduleUpdatePrefsOnNetworkThread();
+}
+
 bool HttpServerPropertiesManager::IsAlternativeServiceBroken(
     const AlternativeService& alternative_service) {
   DCHECK(network_task_runner_->RunsTasksOnCurrentThread());