[Extensions Bindings] Add lastError utilities to APIBindingJSUtil

extensions/renderer/native_extension_bindings_system.cc

 // Copyright 2016 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 "extensions/renderer/native_extension_bindings_system.h"
 
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "content/public/common/content_switches.h"
 #include "extensions/common/constants.h"
@@ skipping 629 matching lines @@
     const base::DictionaryValue* filter,
     v8::Local<v8::Context> context) {
   send_event_listener_ipc_.Run(change,
                                ScriptContextSet::GetContextByV8Context(context),
                                event_name, filter);
 }
 
 void NativeExtensionBindingsSystem::GetJSBindingUtil(
     v8::Local<v8::Context> context,
     v8::Local<v8::Value>* binding_util_out) {
-  gin::Handle<APIBindingJSUtil> handle =
-      gin::CreateHandle(context->GetIsolate(),
-                        new APIBindingJSUtil(api_system_.type_reference_map(),
-                                             api_system_.request_handler(),
-                                             api_system_.event_handler()));
+  gin::Handle<APIBindingJSUtil> handle = gin::CreateHandle(
+      context->GetIsolate(),
+      new APIBindingJSUtil(
+          api_system_.type_reference_map(), api_system_.request_handler(),
+          api_system_.event_handler(), base::Bind(&CallJsFunction)));
   *binding_util_out = handle.ToV8();
 }
 
 }  // namespace extensions