Mojo bindings: merge the control messages of sending disconnect reason and notifying endpoint close…

mojo/public/cpp/bindings/lib/binding_state.cc

Index: mojo/public/cpp/bindings/lib/binding_state.cc
diff --git a/mojo/public/cpp/bindings/lib/binding_state.cc b/mojo/public/cpp/bindings/lib/binding_state.cc
index 0ec445e89c924002cb37c9d786af55779bf4f030..c98fc6fec8707d22a8c0ef152dadc45e98c9e71b 100644
--- a/mojo/public/cpp/bindings/lib/binding_state.cc
+++ b/mojo/public/cpp/bindings/lib/binding_state.cc
@@ -48,8 +48,8 @@ void BindingStateBase::Close() {
 void BindingStateBase::CloseWithReason(uint32_t custom_reason,
                                        const std::string& description) {
   if (endpoint_client_)
-    endpoint_client_->control_message_proxy()->SendDisconnectReason(
-        custom_reason, description);
+    endpoint_client_->CloseWithReason(custom_reason, description);
+
   Close();
 }