Implement Token Binding negotiation TLS extension

chrome/common/pref_names.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.
 
 // Constants for the names of various preferences, for easier changing.
 
 #ifndef CHROME_COMMON_PREF_NAMES_H_
 #define CHROME_COMMON_PREF_NAMES_H_
 
 #include <stddef.h>
@@ skipping 405 matching lines @@
 #endif
 
 // Local state prefs. Please add Profile prefs above instead.
 extern const char kCertRevocationCheckingEnabled[];
 extern const char kCertRevocationCheckingRequiredLocalAnchors[];
 extern const char kSSLVersionMin[];
 extern const char kSSLVersionMax[];
 extern const char kSSLVersionFallbackMin[];
 extern const char kCipherSuiteBlacklist[];
 extern const char kDisableSSLRecordSplitting[];
+extern const char kEnableTokenBinding[];
 
 extern const char kGLVendorString[];
 extern const char kGLRendererString[];
 extern const char kGLVersionString[];
 
 // For finding out whether metrics and crash reporting is enabled or not use
 // |ChromeMetricsServiceAccessor::IsMetricsAndCrashReportingEnabled()| instead
 // of reading platform specific prefs.
 extern const char kMetricsReportingEnabled[];
 
@@ skipping 379 matching lines @@
 
 #if defined(ENABLE_EXTENSIONS)
 extern const char kAnimationPolicy[];
 #endif
 
 extern const char kBackgroundTracingLastUpload[];
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_