Convert utility process extension Unpacker IPC to mojo

extensions/test/test_content_utility_client.cc

Index: extensions/test/test_content_utility_client.cc
diff --git a/extensions/test/test_content_utility_client.cc b/extensions/test/test_content_utility_client.cc
index 93f907e67a1129ed43ae147539a380f30fcc42ad..56aee9fc627487bf6f2120727c18843408db228c 100644
--- a/extensions/test/test_content_utility_client.cc
+++ b/extensions/test/test_content_utility_client.cc
@@ -6,19 +6,21 @@
 
 namespace extensions {
 
-TestContentUtilityClient::TestContentUtilityClient() {
-}
+TestContentUtilityClient::TestContentUtilityClient() = default;
 
-TestContentUtilityClient::~TestContentUtilityClient() {
-}
+TestContentUtilityClient::~TestContentUtilityClient() = default;
 
 void TestContentUtilityClient::UtilityThreadStarted() {
   UtilityHandler::UtilityThreadStarted();
 }
 
+void TestContentUtilityClient::ExposeInterfacesToBrowser(
+    service_manager::InterfaceRegistry* registry) {
+  UtilityHandler::ExposeInterfacesToBrowser(registry, false);
+}
+
 bool TestContentUtilityClient::OnMessageReceived(const IPC::Message& message) {
   return utility_handler_.OnMessageReceived(message);
 }
 
-
 }  // namespace extensions