Add crypto/wincrypt_shim.h wrapper header to resolve BoringSSL conflicts.

chrome/app/signature_validator_win.cc

 // Copyright 2013 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.
 
 #include "chrome/app/signature_validator_win.h"
 
 #include <atlstr.h>
 #include <softpub.h>
-#include <wincrypt.h>
 #include <windows.h>
 #include <wintrust.h>
 
 #include <algorithm>
 
 #include "base/files/file_path.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "base/win/scoped_handle.h"
 #include "crypto/sha2.h"
+#include "crypto/wincrypt_shim.h"
 
 namespace {
 
 bool ExtractPublicKeyHash(const CERT_CONTEXT* cert_context,
                           std::string* public_key_hash) {
   public_key_hash->clear();
 
   CRYPT_BIT_BLOB crypt_blob =
       cert_context->pCertInfo->SubjectPublicKeyInfo.PublicKey;
 
@@ skipping 181 matching lines @@
   // to make sure the cert is current.
   std::vector<std::string>::const_iterator it = std::find(
       expected_hashes.begin(),
       expected_hashes.end(),
       cert_info.public_key_hash());
   if (it == expected_hashes.end() || !cert_info.IsValidNow())
     return false;
 
   return true;
 }