Move Extension into extensions namespace

chrome/browser/ui/webui/extensions/extension_activity_ui.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/ui/webui/extensions/extension_activity_ui.h"
 
 #include "base/bind.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager.h"
@@ skipping 72 matching lines @@
   DictionaryValue result;
   result.Set("extension", extension_data);
 
   web_ui()->CallJavascriptFunction("extension_activity.handleExtensionData",
                                    result);
 
   ExtensionActivityLog::GetInstance()->AddObserver(extension_, this);
 }
 
 void ExtensionActivityUI::OnExtensionActivity(
-      const Extension* extension,
+      const extensions::Extension* extension,
       ExtensionActivityLog::Activity activity,
       const std::string& msg) {
   DictionaryValue result;
   result.SetInteger("activity", activity);
   result.SetString("message", msg);
   web_ui()->CallJavascriptFunction("extension_activity.handleExtensionActivity",
                                    result);
 }