Move Extension into extensions namespace

chrome/browser/background/background_mode_manager_win.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 "base/base_paths.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
@@ skipping 15 matching lines @@
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUserDataDir))
     return;
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       should_launch ?
           base::Bind(auto_launch_util::EnableBackgroundStartAtLogin) :
           base::Bind(auto_launch_util::DisableBackgroundStartAtLogin));
 }
 
 void BackgroundModeManager::DisplayAppInstalledNotification(
-    const Extension* extension) {
+    const extensions::Extension* extension) {
   // Create a status tray notification balloon explaining to the user that
   // a background app has been installed.
   CreateStatusTrayIcon();
   status_icon_->DisplayBalloon(
       SkBitmap(),
       l10n_util::GetStringUTF16(IDS_BACKGROUND_APP_INSTALLED_BALLOON_TITLE),
       l10n_util::GetStringFUTF16(
           IDS_BACKGROUND_APP_INSTALLED_BALLOON_BODY,
           UTF8ToUTF16(extension->name()),
           l10n_util::GetStringUTF16(IDS_PRODUCT_NAME)));
 }
 
 string16 BackgroundModeManager::GetPreferencesMenuLabel() {
   return l10n_util::GetStringUTF16(IDS_OPTIONS);
 }