Switch ChromeTestSuite to the same convention as ContentTestSuite:

chrome/browser/extensions/extension_service_unittest.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_UNITTEST_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_UNITTEST_H_
 #pragma once
 
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/scoped_temp_dir.h"
 #include "chrome/browser/extensions/extension_service.h"
-#include "chrome/test/base/testing_browser_process_test.h"
 #include "content/browser/browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-class ExtensionServiceTestBase : public TestingBrowserProcessTest {
+class ExtensionServiceTestBase : public testing::Test {
  public:
   ExtensionServiceTestBase();
   virtual ~ExtensionServiceTestBase();
 
   void InitializeExtensionService(
       const FilePath& pref_file, const FilePath& extensions_install_dir,
       bool autoupdate_enabled);
 
   void InitializeInstalledExtensionService(
       const FilePath& prefs_file, const FilePath& source_install_dir);
@@ skipping 22 matching lines @@
   size_t total_successes_;
   MessageLoop loop_;
   BrowserThread ui_thread_;
   BrowserThread db_thread_;
   BrowserThread webkit_thread_;
   BrowserThread file_thread_;
   BrowserThread io_thread_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_UNITTEST_H_