Remove SSL 2.0 support.

net/base/ssl_config_service_win.cc

 // Copyright (c) 2010 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 "net/base/ssl_config_service_win.h"
 
 #include "base/thread_restrictions.h"
 #include "base/win/registry.h"
 
 using base::TimeDelta;
@@ skipping 11 matching lines @@
 
 static const wchar_t kProtocolsValueName[] = L"SecureProtocols";
 
 // In SecureProtocols, each SSL version is represented by a bit:
 //   SSL 2.0: 0x08
 //   SSL 3.0: 0x20
 //   TLS 1.0: 0x80
 // The bits are OR'ed to form the DWORD value.  So 0xa0 means SSL 3.0 and
 // TLS 1.0.
 enum {
-  SSL2 = 0x08,
   SSL3 = 0x20,
   TLS1 = 0x80
 };
 
 // If CertificateRevocation or SecureProtocols is missing, IE uses a default
 // value.  Unfortunately the default is IE version specific.  We use WinHTTP's
 // default.
 enum {
   REVOCATION_DEFAULT = 0,
   PROTOCOLS_DEFAULT = SSL3 | TLS1
@@ skipping 27 matching lines @@
 
   DWORD revocation;
   if (!internet_settings.ReadValueDW(kRevocationValueName, &revocation))
     revocation = REVOCATION_DEFAULT;
 
   DWORD protocols;
   if (!internet_settings.ReadValueDW(kProtocolsValueName, &protocols))
     protocols = PROTOCOLS_DEFAULT;
 
   config->rev_checking_enabled = (revocation != 0);
-  config->ssl2_enabled = ((protocols & SSL2) != 0);
   config->ssl3_enabled = ((protocols & SSL3) != 0);
   config->tls1_enabled = ((protocols & TLS1) != 0);
   SSLConfigService::SetSSLConfigFlags(config);
 
   // TODO(rsleevi): Possibly respect the registry keys defined in
   // http://support.microsoft.com/kb/245030 (pre-Vista) or
   // http://msdn.microsoft.com/en-us/library/bb870930(VS.85).aspx (post-Vista).
   // Currently, these values are respected implicitly when using
   // SSLClientSocketWin, but they do not propogate to SSLClientSocketNSS
   // because we're not currently translating the keys.
 
   return true;
 }
 
 // static
 void SSLConfigServiceWin::SetRevCheckingEnabled(bool enabled) {
   // This registry access goes to disk and will slow down the IO thread.
   // http://crbug.com/61455
   DWORD value = enabled;
   RegKey internet_settings(HKEY_CURRENT_USER, kInternetSettingsSubKeyName,
                            KEY_WRITE);
   internet_settings.WriteValue(kRevocationValueName, value);
   // TODO(mattm): We should call UpdateConfig after updating settings, but these
   // methods are static.
 }
 
 // static
-void SSLConfigServiceWin::SetSSL2Enabled(bool enabled) {
-  SetSSLVersionEnabled(SSL2, enabled);
-}
-
-// static
 void SSLConfigServiceWin::SetSSL3Enabled(bool enabled) {
   SetSSLVersionEnabled(SSL3, enabled);
 }
 
 // static
 void SSLConfigServiceWin::SetTLS1Enabled(bool enabled) {
   SetSSLVersionEnabled(TLS1, enabled);
 }
 
 // static
@@ skipping 17 matching lines @@
 void SSLConfigServiceWin::UpdateConfig(TimeTicks now) {
   SSLConfig orig_config = config_info_;
   GetSSLConfigNow(&config_info_);
   if (ever_updated_)
     ProcessConfigUpdate(orig_config, config_info_);
   config_time_ = now;
   ever_updated_ = true;
 }
 
 }  // namespace net