Move Extension into extensions namespace

chrome/browser/sync/test/integration/themes_helper.cc

 // Copyright (c) 2011 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/sync/test/integration/themes_helper.h"
 
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/themes/theme_service_factory.h"
@@ skipping 42 matching lines @@
   return SyncExtensionHelper::GetInstance()->
       IsExtensionPendingInstallForSync(profile, id);
 }
 
 bool HasOrWillHaveCustomTheme(Profile* profile, const std::string& id) {
   return (GetThemeID(profile) == id) || ThemeIsPendingInstall(profile, id);
 }
 
 void UseCustomTheme(Profile* profile, int index) {
   SyncExtensionHelper::GetInstance()->InstallExtension(
-      profile, MakeName(index), Extension::TYPE_THEME);
+      profile, MakeName(index), extensions::Extension::TYPE_THEME);
 }
 
 void UseDefaultTheme(Profile* profile) {
   GetThemeService(profile)->UseDefaultTheme();
 }
 
 void UseNativeTheme(Profile* profile) {
   // TODO(akalin): Fix this inconsistent naming in the theme service.
   GetThemeService(profile)->SetNativeTheme();
 }
 
 }  // namespace themes_helper