Move Extension into extensions namespace

chrome/browser/extensions/extension_browsertests_misc.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/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/autoupdate_interceptor.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
@@ skipping 20 matching lines @@
 #include "net/base/net_util.h"
 #include "net/test/test_server.h"
 #include "webkit/glue/webpreferences.h"
 
 #if defined(TOOLKIT_VIEWS)
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #endif
 
 using content::NavigationController;
 using content::WebContents;
+using extensions::Extension;
 
 const std::string kSubscribePage = "/subscribe.html";
 const std::string kFeedPage = "files/feeds/feed.html";
 const std::string kFeedPageMultiRel = "files/feeds/feed_multi_rel.html";
 const std::string kNoFeedPage = "files/feeds/no_feed.html";
 const std::string kValidFeed0 = "files/feeds/feed_script.xml";
 const std::string kValidFeed1 = "files/feeds/feed1.xml";
 const std::string kValidFeed2 = "files/feeds/feed2.xml";
 const std::string kValidFeed3 = "files/feeds/feed3.xml";
 const std::string kValidFeed4 = "files/feeds/feed4.xml";
@@ skipping 875 matching lines @@
 
   EXPECT_EQ(extension->GetResourceURL("options.html"),
             tab_strip->GetTabContentsAt(1)->web_contents()->GetURL());
 }
 
 //==============================================================================
 // STOP! Please do not add any more random-ass tests here. Create new files for
 // your tests grouped by functionality. Also, you should strongly consider using
 // ExtensionAPITest if possible.
 //==============================================================================