Mojo C++ Bindings: Add helpers for bad message reporting

mojo/edk/embedder/embedder.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/edk/embedder/embedder.h"
 
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 66 matching lines @@
 }
 
 void Init() {
   MojoSystemThunks thunks = MakeSystemThunks();
   size_t expected_size = MojoEmbedderSetSystemThunks(&thunks);
   DCHECK_EQ(expected_size, sizeof(thunks));
 
   internal::g_core = new Core();
 }
 
+void SetDefaultProcessErrorCallback(const ProcessErrorCallback& callback) {
+  internal::g_core->SetDefaultProcessErrorCallback(callback);
+}
+
 MojoResult CreatePlatformHandleWrapper(
     ScopedPlatformHandle platform_handle,
     MojoHandle* platform_handle_wrapper_handle) {
   return internal::g_core->CreatePlatformHandleWrapper(
       std::move(platform_handle), platform_handle_wrapper_handle);
 }
 
 MojoResult PassWrappedPlatformHandle(MojoHandle platform_handle_wrapper_handle,
                                      ScopedPlatformHandle* platform_handle) {
   return internal::g_core->PassWrappedPlatformHandle(
@@ skipping 68 matching lines @@
   return base::HexEncode(random_bytes, 16);
 }
 
 MojoResult SetProperty(MojoPropertyType type, const void* value) {
   CHECK(internal::g_core);
   return internal::g_core->SetProperty(type, value);
 }
 
 }  // namespace edk
 }  // namespace mojo