Replace calls to rand_s with calls to RtlGenRandom

sandbox/win/sandbox_win.gypi

 # 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.
 
 {
   'target_defaults': {
     'variables': {
       'sandbox_windows_target': 0,
       'target_arch%': 'ia32',
     },
@@ skipping 86 matching lines @@
             'src/restricted_token.cc',
             'src/restricted_token.h',
             'src/sandbox_factory.h',
             'src/sandbox_globals.cc',
             'src/sandbox_nt_types.h',
             'src/sandbox_nt_util.cc',
             'src/sandbox_nt_util.h',
             'src/sandbox_policy_base.cc',
             'src/sandbox_policy_base.h',
             'src/sandbox_policy.h',
+            'src/sandbox_rand.cc',
+            'src/sandbox_rand.h',
             'src/sandbox_types.h',
             'src/sandbox_utils.cc',
             'src/sandbox_utils.h',
             'src/sandbox.cc',
             'src/sandbox.h',
             'src/security_level.h',
             'src/service_resolver.cc',
             'src/service_resolver.h',
             'src/shared_handles.cc',
             'src/shared_handles.h',
@@ skipping 289 matching lines @@
             '../../build/isolate.gypi',
           ],
           'sources': [
             '../sbox_validation_tests.isolate',
           ],
         },
       ],
     }],
   ],
 }