Move Extension into extensions namespace

chrome/browser/extensions/extension_management_browsertest.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/memory/ref_counted.h"
 #include "base/stl_util.h"
 #include "chrome/browser/extensions/autoupdate_interceptor.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/extensions/updater/extension_updater.h"
 #include "chrome/browser/infobars/infobar_tab_helper.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/common/url_fetcher.h"
 
+using extensions::Extension;
+
 class ExtensionManagementTest : public ExtensionBrowserTest {
  protected:
   // Helper method that returns whether the extension is at the given version.
   // This calls version(), which must be defined in the extension's bg page,
   // as well as asking the extension itself.
   //
   // Note that 'version' here means something different than the version field
   // in the extension's manifest. We use the version as reported by the
   // background page to test how overinstalling crx files with the same
   // manifest version works.
@@ skipping 572 matching lines @@
         std::string(kExtensionId) + ";http://localhost/autoupdate/manifest"));
   }
   ASSERT_TRUE(WaitForExtensionInstall());
   ASSERT_EQ(size_before + 1, service->extensions()->size());
   extension = service->GetExtensionById(kExtensionId, false);
   ASSERT_TRUE(extension);
   EXPECT_EQ(Extension::EXTERNAL_POLICY_DOWNLOAD, extension->location());
   EXPECT_TRUE(service->IsExtensionEnabled(kExtensionId));
   EXPECT_TRUE(service->disabled_extensions()->is_empty());
 }