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

net/cert/sha256_legacy_support_win.h

 // 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.
 
 #ifndef NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_
 #define NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_
 
 #include <windows.h>
-#include <wincrypt.h>
 
+#include "crypto/wincrypt_shim.h"
 #include "net/base/net_export.h"
 
 namespace net {
 
 namespace sha256_interception {
 
 typedef BOOL (WINAPI* CryptVerifyCertificateSignatureExFunc)(
     HCRYPTPROV_LEGACY provider,
     DWORD encoding_type,
     DWORD subject_type,
@@ skipping 18 matching lines @@
     DWORD issuer_type,
     void* issuer_data,
     DWORD flags,
     void* extra);
 
 }  // namespace sha256_interception
 
 }  // namespace net
 
 #endif  // NET_CERT_SHA256_LEGACY_SUPPORT_WIN_H_