Mojo: Report bindings validation errors via MojoNotifyBadMessage

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/public/cpp/bindings/no_interface.h"
 
 namespace mojo {
 
 const char* NoInterface::Name_ = "mojo::NoInterface";
 
-bool NoInterfaceStub::Accept(Message* message) {
-  return false;
+MessageReceiver::Result NoInterfaceStub::Accept(Message* message) {
+  return Result::ForUnexpectedRequest(NoInterface::Name_, message);
 }
 
-bool NoInterfaceStub::AcceptWithResponder(Message* message,
-                                          MessageReceiver* responder) {
-  return false;
+MessageReceiver::Result NoInterfaceStub::AcceptWithResponder(
+    Message* message,
+    MessageReceiver* responder) {
+  return Result::ForUnexpectedRequest(NoInterface::Name_, message);
 }
 
 }  // namespace mojo