Revert of win: Update to Win 10 SDK

build/vs_toolchain.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 import json
 import os
 import pipes
 import shutil
 import subprocess
@@ skipping 174 matching lines @@
         target_dir, runtime_dir, 'msvc%s' + _VersionNumber() + 'd.dll')
 
 
 def _GetDesiredVsToolchainHashes():
   """Load a list of SHA1s corresponding to the toolchains that we want installed
   to build with."""
   if os.environ.get('GYP_MSVS_VERSION') == '2015':
     return ['49ae4b60d898182fc3f521c2fcda82c453915011']
   else:
     # Default to VS2013.
-    return ['9ff97c632ae1fee0c98bcd53e71770eb3a0d8deb']
+    return ['ee7d718ec60c2dc5d255bbe325909c2021a7efef']
 
 
 def Update(force=False):
   """Requests an update of the toolchain to the specific hashes we have at
   this revision. The update outputs a .json of the various configuration
   information required to pass to gyp which we use in |GetToolchainDir()|.
   """
   if force != False and force != '--force':
     print >>sys.stderr, 'Unknown parameter "%s"' % force
     return 1
@@ skipping 51 matching lines @@
       'copy_dlls': CopyDlls,
   }
   if len(sys.argv) < 2 or sys.argv[1] not in commands:
     print >>sys.stderr, 'Expected one of: %s' % ', '.join(commands)
     return 1
   return commands[sys.argv[1]](*sys.argv[2:])
 
 
 if __name__ == '__main__':
   sys.exit(main())