Sync the browser test host resolver with the network process before a test runs.

content/utility/utility_service_factory.cc

Index: content/utility/utility_service_factory.cc
diff --git a/content/utility/utility_service_factory.cc b/content/utility/utility_service_factory.cc
index 73c2cf8e242ec6c5af2eb1b5ce7287bfc60aa711..734fdebd587cd6bff7c43b0644918fc0daa12f29 100644
--- a/content/utility/utility_service_factory.cc
+++ b/content/utility/utility_service_factory.cc
@@ -34,7 +34,8 @@ std::unique_ptr<service_manager::Service> CreateDataDecoderService() {
 
 }  // namespace
 
-UtilityServiceFactory::UtilityServiceFactory() {}
+UtilityServiceFactory::UtilityServiceFactory()
+    : network_registry_(base::MakeUnique<service_manager::BinderRegistry>()) {}
 
 UtilityServiceFactory::~UtilityServiceFactory() {}
 
@@ -59,8 +60,11 @@ void UtilityServiceFactory::RegisterServices(ServiceMap* services) {
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableNetworkService)) {
+    GetContentClient()->utility()->RegisterNetworkBinders(
+        network_registry_.get());
     ServiceInfo network_info;
-    network_info.factory = base::Bind(&NetworkService::CreateNetworkService);
+    network_info.factory = base::Bind(
+        &UtilityServiceFactory::CreateNetworkService, base::Unretained(this));
     network_info.task_runner = ChildProcess::current()->io_task_runner();
     services->insert(
         std::make_pair(content::mojom::kNetworkServiceName, network_info));
@@ -78,4 +82,9 @@ void UtilityServiceFactory::OnLoadFailed() {
   utility_thread->ReleaseProcessIfNeeded();
 }
 
+std::unique_ptr<service_manager::Service>
+UtilityServiceFactory::CreateNetworkService() {
+  return base::MakeUnique<NetworkService>(std::move(network_registry_));
+}
+
 }  // namespace content