Revert 128016 - Make sandbox explicitly block opening broker and sandboxed processes

sandbox/src/broker_services.h

Index: sandbox/src/broker_services.h
===================================================================
--- sandbox/src/broker_services.h	(revision 128568)
+++ sandbox/src/broker_services.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
@@ -74,9 +74,6 @@
   // Handle to the worker thread that reacts to job notifications.
   HANDLE job_thread_;
 
-  // Copy of our security descriptor containing deny ACEs to block children.
-  PSECURITY_DESCRIPTOR security_descriptor_;
-
   // Lock used to protect the list of targets from being modified by 2
   // threads at the same time.
   CRITICAL_SECTION lock_;