Added support for multiple parameters to Extension API callbacks.

chrome/browser/extensions/extension_module.cc

 // Copyright (c) 2012 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 "chrome/browser/extensions/extension_module.h"
 
 #include <string>
 
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 
 extensions::ExtensionPrefs* SetUpdateUrlDataFunction::extension_prefs() {
   return profile()->GetExtensionService()->extension_prefs();
 }
 
 bool SetUpdateUrlDataFunction::RunImpl() {
   std::string data;
   EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &data));
 
   extension_prefs()->SetUpdateUrlData(extension_id(), data);
   return true;
 }
 
 bool IsAllowedIncognitoAccessFunction::RunImpl() {
   ExtensionService* ext_service = profile()->GetExtensionService();
   const extensions::Extension* extension = GetExtension();
 
-  result_.reset(Value::CreateBooleanValue(
+  SetResult(Value::CreateBooleanValue(
       ext_service->IsIncognitoEnabled(extension->id())));
   return true;
 }
 
 bool IsAllowedFileSchemeAccessFunction::RunImpl() {
   ExtensionService* ext_service = profile()->GetExtensionService();
   const extensions::Extension* extension = GetExtension();
 
-  result_.reset(Value::CreateBooleanValue(
-        ext_service->AllowFileAccess(extension)));
+  SetResult(Value::CreateBooleanValue(
+      ext_service->AllowFileAccess(extension)));
   return true;
 }