Pass the /safeseh option to ml.exe.

test/win/ml-safeseh/ml-safeseh.gyp

-# Copyright (c) 2012 Google Inc. All rights reserved.
+# Copyright (c) 2014 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
  'targets': [
     {
-      'target_name': 'test_pdbname',
+      'target_name': 'ml_safeseh',
       'type': 'executable',
       'sources': [
         'hello.cc',
-        'pdbname.cc',
+        'a.asm',
       ],
       'msvs_settings': {
-        'VCCLCompilerTool': {
-          'DebugInformationFormat': '3',
+        'VCLinkerTool': {
+          'ImageHasSafeExceptionHandlers': 'true',
         },
-        'VCLinkerTool': {
-          'GenerateDebugInformation': 'true',
+        'MASM': {
+          'UseSafeExceptionHandlers': 'true',
         },
       },
     },
   ]
 }