mojo::Callback -> base::Callback

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

 // Copyright 2015 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/lib/interface_endpoint_client.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 247 matching lines @@
 
   return payload_validator_->Accept(message);
 }
 
 void InterfaceEndpointClient::NotifyError() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   if (encountered_error_)
     return;
   encountered_error_ = true;
-  error_handler_.Run();
+  if (!error_handler_.is_null())
+    error_handler_.Run();
 }
 
 bool InterfaceEndpointClient::HandleValidatedMessage(Message* message) {
   DCHECK_EQ(handle_.id(), message->interface_id());
 
   if (message->has_flag(kMessageExpectsResponse)) {
     if (!incoming_receiver_)
       return false;
 
     MessageReceiverWithStatus* responder =
@@ skipping 24 matching lines @@
   } else {
     if (!incoming_receiver_)
       return false;
 
     return incoming_receiver_->Accept(message);
   }
 }
 
 }  // namespace internal
 }  // namespace mojo