Move Extension into extensions namespace

chrome/browser/extensions/api/extension_action/browser_action_apitest.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 "build/build_config.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #endif
 
 #include "chrome/browser/extensions/browser_action_test_util.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_browser_event_router.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension_action.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/web_contents.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 
 using content::WebContents;
+using extensions::Extension;
 
 class BrowserActionApiTest : public ExtensionApiTest {
  public:
   BrowserActionApiTest() {}
   virtual ~BrowserActionApiTest() {}
 
  protected:
   BrowserActionTestUtil GetBrowserActionsBar() {
     return BrowserActionTestUtil(browser());
   }
@@ skipping 419 matching lines @@
   ResultCatcher catcher;
   ui_test_utils::NavigateToURL(browser(),
       GURL(extension->GetResourceURL("update.html")));
   ASSERT_TRUE(catcher.GetNextResult());
 
   // Test the getters for a specific tab.
   ui_test_utils::NavigateToURL(browser(),
       GURL(extension->GetResourceURL("update2.html")));
   ASSERT_TRUE(catcher.GetNextResult());
 }