Add minimum TLS version control to about:flags and Finch gate it.

chrome/common/chrome_switches.cc

 // 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.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 1119 matching lines @@
 const char kSSLVersionMax[]                 = "ssl-version-max";
 
 // Specifies the minimum SSL/TLS version ("ssl3", "tls1", "tls1.1", or
 // "tls1.2").
 const char kSSLVersionMin[]                 = "ssl-version-min";
 
 // Specifies the minimum SSL/TLS version ("ssl3", "tls1", "tls1.1", or
 // "tls1.2") that TLS fallback will accept.
 const char kSSLVersionFallbackMin[]         = "ssl-version-fallback-min";
 
+// These values aren't switches, but rather the values that kSSLVersionMax,
+// kSSLVersionMin and kSSLVersionFallbackMin can have.
+const char kSSLVersionSSLv3[]               = "ssl3";
+const char kSSLVersionTLSv1[]               = "tls1";
+const char kSSLVersionTLSv11[]              = "tls1.1";
+const char kSSLVersionTLSv12[]              = "tls1.2";
+
 // Starts the browser maximized, regardless of any previous settings.
 const char kStartMaximized[]                = "start-maximized";
 
 // Sets the supervised user ID for any loaded or newly created profile to the
 // given value. Pass an empty string to mark the profile as non-supervised.
 // Used for testing.
 const char kSupervisedUserId[]              = "managed-user-id";
 
 // Used to authenticate requests to the Sync service for supervised users.
 // Setting this switch also causes Sync to be set up for a supervised user.
@@ skipping 220 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches