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

mojo/public/cpp/bindings/interface_endpoint_client.h

Index: mojo/public/cpp/bindings/interface_endpoint_client.h
diff --git a/mojo/public/cpp/bindings/interface_endpoint_client.h b/mojo/public/cpp/bindings/interface_endpoint_client.h
index 0aea75678adc196caf49dec10f57e33bba48b3c2..b519fe92bbbbc79cbc4d1be01954ce4d70827f26 100644
--- a/mojo/public/cpp/bindings/interface_endpoint_client.h
+++ b/mojo/public/cpp/bindings/interface_endpoint_client.h
@@ -96,7 +96,7 @@ class MOJO_CPP_BINDINGS_EXPORT InterfaceEndpointClient
   // state.
   bool Accept(Message* message) override;
   bool AcceptWithResponder(Message* message,
-                           MessageReceiver* responder) override;
+                           std::unique_ptr<MessageReceiver> responder) override;
 
   // The following methods are called by the router. They must be called
   // outside of the router's lock.