Move ExtensionHost into extensions namespace

chrome/browser/extensions/lazy_background_page_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 "base/file_path.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/extensions/browser_action_test_util.h"
 #include "chrome/browser/extensions/extension_apitest.h"
@@ skipping 223 matching lines @@
   ResultCatcher catcher;
   FilePath extdir = test_data_dir_.AppendASCII("lazy_background_page").
       AppendASCII("wait_for_request");
   const Extension* extension = LoadExtension(extdir);
   ASSERT_TRUE(extension);
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
 
   // Lazy Background Page still exists, because the extension started a request.
   ExtensionProcessManager* pm =
       browser()->profile()->GetExtensionProcessManager();
-  ExtensionHost* host =
+  extensions::ExtensionHost* host =
       pm->GetBackgroundHostForExtension(last_loaded_extension_id_);
   ASSERT_TRUE(host);
 
   // Abort the request.
   bool result = false;
   EXPECT_TRUE(content::ExecuteJavaScriptAndExtractBool(
       host->render_view_host(), std::wstring(), L"abortRequest()", &result));
   EXPECT_TRUE(result);
   page_complete.Wait();
 
@@ skipping 110 matching lines @@
   EXPECT_FALSE(pm->GetBackgroundHostForExtension(last_loaded_extension_id_));
 
   // The browser action has a new title.
   BrowserActionTestUtil browser_action(browser());
   ASSERT_EQ(1, browser_action.NumberOfBrowserActions());
   EXPECT_EQ("Success", browser_action.GetTooltip(0));
 }
 
 // TODO: background page with timer.
 // TODO: background page that interacts with popup.