Added support for multiple parameters to Extension API callbacks.

chrome/browser/extensions/api/content_settings/content_settings_api.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/api/content_settings/content_settings_api.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 145 matching lines @@
                                                 setting_cookie, NULL);
   } else {
     setting = map->GetContentSetting(primary_url, secondary_url, content_type,
                                      resource_identifier);
   }
 
   DictionaryValue* result = new DictionaryValue();
   result->SetString(keys::kContentSettingKey,
                     helpers::ContentSettingToString(setting));
 
-  result_.reset(result);
+  SetResult(result);
 
   return true;
 }
 
 bool SetContentSettingFunction::RunImpl() {
   ContentSettingsType content_type;
   EXTENSION_FUNCTION_VALIDATE(RemoveContentType(args_.get(), &content_type));
 
   scoped_ptr<Set::Params> params(Set::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
@@ skipping 99 matching lines @@
     const std::vector<webkit::npapi::PluginGroup>& groups) {
   ListValue* list = new ListValue();
   for (std::vector<webkit::npapi::PluginGroup>::const_iterator it =
           groups.begin();
        it != groups.end(); ++it) {
     DictionaryValue* dict = new DictionaryValue();
     dict->SetString(keys::kIdKey, it->identifier());
     dict->SetString(keys::kDescriptionKey, it->GetGroupName());
     list->Append(dict);
   }
-  result_.reset(list);
+  SetResult(list);
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE, base::Bind(
           &GetResourceIdentifiersFunction::SendResponse, this, true));
 }
 
 // static
 void GetResourceIdentifiersFunction::SetPluginGroupsForTesting(
     const std::vector<webkit::npapi::PluginGroup>* plugin_groups) {
   g_testing_plugin_groups_ = plugin_groups;
 }
 
 }  // namespace extensions