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

content/utility/utility_service_factory.h

Index: content/utility/utility_service_factory.h
diff --git a/content/utility/utility_service_factory.h b/content/utility/utility_service_factory.h
index 0e561bd699f39e11b64fa2299822f67c216c59a6..ed4363a5edf4fec6e0e6cb8638dcfe1cf393401c 100644
--- a/content/utility/utility_service_factory.h
+++ b/content/utility/utility_service_factory.h
@@ -7,6 +7,7 @@
 
 #include "base/macros.h"
 #include "content/child/service_factory.h"
+#include "services/service_manager/public/cpp/binder_registry.h"
 
 namespace content {
 
@@ -24,6 +25,12 @@ class UtilityServiceFactory : public ServiceFactory {
  private:
   void OnLoadFailed() override;
 
+  std::unique_ptr<service_manager::Service> CreateNetworkService();
+
+  // Allows embedders to register their interface implementations before the
+  // network service is created.
+  std::unique_ptr<service_manager::BinderRegistry> network_registry_;
+
   DISALLOW_COPY_AND_ASSIGN(UtilityServiceFactory);
 };