Mojo: Report bindings validation errors via MojoNotifyBadMessage

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

 // Copyright 2013 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/message.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
 
 #include <algorithm>
 #include <utility>
 
 #include "base/logging.h"
+#include "base/strings/stringprintf.h"
 
 namespace mojo {
 
 Message::Message() {
 }
 
 Message::~Message() {
   CloseHandles();
 }
 
@@ skipping 46 matching lines @@
   void* new_buffer = nullptr;
   rv = GetMessageBuffer(new_message.get(), &new_buffer);
   CHECK_EQ(rv, MOJO_RESULT_OK);
 
   memcpy(new_buffer, data(), data_num_bytes());
   buffer_.reset();
 
   return new_message;
 }
 
+void Message::NotifyBadMessage(const std::string& error) {
+  buffer_->NotifyBadMessage(error);
+}
+
 void Message::CloseHandles() {
   for (std::vector<Handle>::iterator it = handles_.begin();
        it != handles_.end(); ++it) {
     if (it->is_valid())
       CloseRaw(*it);
   }
 }
 
 MojoResult ReadMessage(MessagePipeHandle handle, Message* message) {
   MojoResult rv;
@@ skipping 20 matching lines @@
 
   if (rv != MOJO_RESULT_OK)
     return rv;
 
   message->InitializeFromMojoMessage(
       std::move(mojo_message), num_bytes, &handles);
   return MOJO_RESULT_OK;
 }
 
 }  // namespace mojo