Fix memory leak in AsyncExtensionFunction.

chrome/browser/extensions/extension_popup_api.cc

 // Copyright (c) 2009 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_popup_api.h"
 
 #include "base/gfx/point.h"
 #include "base/json/json_writer.h"
 #include "base/string_util.h"
 #include "chrome/common/extensions/extension.h"
@@ skipping 55 matching lines @@
                      NotificationService::AllSources());
     }
   }
 #else
   SendResponse(false);
 #endif
 }
 
 bool PopupShowFunction::RunImpl() {
   EXTENSION_FUNCTION_VALIDATE(args_->IsType(Value::TYPE_LIST));
-  const ListValue* args = static_cast<const ListValue*>(args_);
+  const ListValue* args = args_as_list();
 
   DictionaryValue* popup_info = NULL;
   EXTENSION_FUNCTION_VALIDATE(args->GetDictionary(0, &popup_info));
 
   std::string url_string;
   EXTENSION_FUNCTION_VALIDATE(popup_info->GetString(kUrlKey,
                                                     &url_string));
 
   DictionaryValue* dom_anchor = NULL;
   EXTENSION_FUNCTION_VALIDATE(args->GetDictionary(1, &dom_anchor));
@@ skipping 68 matching lines @@
 void PopupEventRouter::OnPopupClosed(Profile* profile,
                                      int routing_id) {
   std::string full_event_name = StringPrintf(
       extension_popup_module_events::kOnPopupClosed,
       routing_id);
 
   profile->GetExtensionMessageService()->DispatchEventToRenderers(
       full_event_name,
       base::JSONWriter::kEmptyArray);
 }