Added a policy option to restrict the default DACL for tokens.

sandbox/win/src/acl.h

 // 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.
 
 #ifndef SANDBOX_SRC_ACL_H_
 #define SANDBOX_SRC_ACL_H_
 
 #include <AccCtrl.h>
 #include <windows.h>
 
 #include "base/memory/scoped_ptr.h"
 #include "sandbox/win/src/sid.h"
 
 namespace sandbox {
 
 // Returns the default dacl from the token passed in.
 bool GetDefaultDacl(
     HANDLE token,
     scoped_ptr<TOKEN_DEFAULT_DACL, base::FreeDeleter>* default_dacl);
 
 // Appends an ACE represented by |sid|, |access_mode|, and |access| to
 // |old_dacl|. If the function succeeds, new_dacl contains the new dacl and
 // must be freed using LocalFree.
 bool AddSidToDacl(const Sid& sid, ACL* old_dacl, ACCESS_MODE access_mode,
                   ACCESS_MASK access, ACL** new_dacl);
 
-// Adds and ACE represented by |sid| and |access| to the default dacl present
+// Adds an ACE represented by |sid| and |access| to the default dacl present
 // in the token.
 bool AddSidToDefaultDacl(HANDLE token, const Sid& sid, ACCESS_MASK access);
 
+// Adds an ACE represented by |sid| and |access| with |access_mode| to the
+// default dacl present in the token.
+bool AddSidToDefaultDacl(HANDLE token,

[Will Harris, 2016/03/27 01:20:05]

are there really that many users of AddSidToDefaultDacl that they can't just
always use the four parameter function?

[forshaw, 2016/03/28 16:40:31]

Done.

+                         const Sid& sid,
+                         ACCESS_MODE access_mode,
+                         ACCESS_MASK access);
+
+// Adds a deny ACE represented by |sid| and |access| to the default dacl
+// present in the token.
+bool AddDenySidToDefaultDacl(HANDLE token, const Sid& sid, ACCESS_MASK access);
+
+// Revokes access to the logon SID for the default dacl present in the token.
+bool RevokeLogonSidFromDefaultDacl(HANDLE token);
+
 // Adds an ACE represented by the user sid and |access| to the default dacl
 // present in the token.
 bool AddUserSidToDefaultDacl(HANDLE token, ACCESS_MASK access);
 
 // Adds an ACE represented by |known_sid|, |access_mode|, and |access| to
 // the dacl of the kernel object referenced by |object| and of |object_type|.
 bool AddKnownSidToObject(HANDLE object, SE_OBJECT_TYPE object_type,
                          const Sid& sid, ACCESS_MODE access_mode,
                          ACCESS_MASK access);
 
 }  // namespace sandbox
 
 
 #endif  // SANDBOX_SRC_ACL_H_