Resolve a TSAN race in CertVerifyProc

net/cert/cert_verify_proc.h

 // 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.
 
 #ifndef NET_CERT_CERT_VERIFY_PROC_H_
 #define NET_CERT_CERT_VERIFY_PROC_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 111 matching lines @@
   // For certificates issued after 1 April 2015: 39 months.
   //
   // For certificates issued before the BRs took effect, there were no
   // guidelines, but clamp them at a maximum of 10 year validity, with the
   // requirement they expire within 7 years after the effective date of the BRs
   // (i.e. by 1 July 2019).
   static bool HasTooLongValidity(const X509Certificate& cert);
 
   // Emergency kill-switch for SHA-1 deprecation. Disabled by default.
   static const base::Feature kSHA1LegacyMode;
+  const bool sha1_legacy_mode_enabled;
 
   DISALLOW_COPY_AND_ASSIGN(CertVerifyProc);
 };
 
 }  // namespace net
 
 #endif  // NET_CERT_CERT_VERIFY_PROC_H_