Revert 124817 - Take extensions out of Profile into a profile-keyed service, ExtensionSystem.

chrome/browser/extensions/extension_service_unittest.h

Index: chrome/browser/extensions/extension_service_unittest.h
===================================================================
--- chrome/browser/extensions/extension_service_unittest.h	(revision 124830)
+++ chrome/browser/extensions/extension_service_unittest.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -55,7 +55,7 @@
   scoped_ptr<TestingProfile> profile_;
   FilePath extensions_install_dir_;
   FilePath data_dir_;
-  // Managed by ExtensionSystemFactory.
+  // Owned by |profile_|.
   ExtensionService* service_;
   size_t expected_extensions_count_;
   content::TestBrowserThread ui_thread_;