mojo: MessageReceiver*::AcceptWithResponder() now take a unique_ptr to the responder

mojo/public/cpp/bindings/tests/sample_service_unittest.cc

Index: mojo/public/cpp/bindings/tests/sample_service_unittest.cc
diff --git a/mojo/public/cpp/bindings/tests/sample_service_unittest.cc b/mojo/public/cpp/bindings/tests/sample_service_unittest.cc
index 579576fd350a9244c4253d81dac760b75a73ac10..1f95a27a5e01e3d2ac14dcbe34ec718a074d8416 100644
--- a/mojo/public/cpp/bindings/tests/sample_service_unittest.cc
+++ b/mojo/public/cpp/bindings/tests/sample_service_unittest.cc
@@ -295,8 +295,9 @@ class SimpleMessageReceiver : public mojo::MessageReceiverWithResponder {
     return stub.Accept(message);
   }
 
-  bool AcceptWithResponder(mojo::Message* message,
-                           mojo::MessageReceiver* responder) override {
+  bool AcceptWithResponder(
+      mojo::Message* message,
+      std::unique_ptr<mojo::MessageReceiver> responder) override {
     return false;
   }
 };