Move Extension into extensions namespace

chrome/browser/extensions/api/web_request/web_request_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 "base/command_line.h"
 #include "chrome/browser/extensions/api/web_request/web_request_api.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 87 matching lines @@
   // Wait for the extension to set itself up and return control to us.
   ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_newTab.html"))
       << message_;
 
   WebContents* tab = browser()->GetSelectedWebContents();
   ui_test_utils::WaitForLoadStop(tab);
 
   ResultCatcher catcher;
 
   ExtensionService* service = browser()->profile()->GetExtensionService();
-  const Extension* extension =
+  const extensions::Extension* extension =
       service->GetExtensionById(last_loaded_extension_id_, false);
   GURL url = extension->GetResourceURL("newTab/a.html");
 
   ui_test_utils::NavigateToURL(browser(), url);
 
   // There's a link on a.html with target=_blank. Click on it to open it in a
   // new tab.
   WebKit::WebMouseEvent mouse_event;
   mouse_event.type = WebKit::WebInputEvent::MouseDown;
   mouse_event.button = WebKit::WebMouseEvent::ButtonLeft;
   mouse_event.x = 7;
   mouse_event.y = 7;
   mouse_event.clickCount = 1;
   tab->GetRenderViewHost()->ForwardMouseEvent(mouse_event);
   mouse_event.type = WebKit::WebInputEvent::MouseUp;
   tab->GetRenderViewHost()->ForwardMouseEvent(mouse_event);
 
   ASSERT_TRUE(catcher.GetNextResult()) << catcher.message();
 }
 
 IN_PROC_BROWSER_TEST_F(ExtensionWebRequestApiTest, WebRequestDeclarative) {
   ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_declarative.html")) <<
       message_;
 }