Add --ssl-version-min and --ssl-version-fallback-min to chrome://flags.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 7c45527ee719f473be625ec923fbf15f4ee99dcd..5c30f4a0d23571697067a6c9531038702c830e19 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -9613,6 +9613,45 @@ and incorrect credentials. Either an attacker is trying to pretend to be <ph nam
       You cannot visit <ph name="SITE">$1<ex>google.com</ex></ph> right now because the website sent scrambled credentials that Chrome cannot process. Network errors and attacks are usually temporary, so this page will probably work later.
       </message>
 
+      <message name="IDS_FLAGS_SSL_VERSION_MIN_DESCRIPTION" desc="min desc">

[Joao da Silva, 2014/10/22 10:49:57]

The desc attribute is used to give a hint to translators, to clarify what this
string is meant to convey. Can you make it a bit more descriptive?

[Thiemo Nagel, 2014/10/22 16:30:54]

Yes, sure.  (Having them as they are was an oversight.)

+      Minimal SSL/TLS version required.  Secure connection will be refused if
+      the server offers lesser protection than this version.
+
+      Note that the SSL/TLS versions are listed in increasing order of security,
+      i.e. SSL 3 is least secure and TLS 1.2 is most secure.
+      </message>
+      <message name="IDS_FLAGS_SSL_VERSION_MIN_NAME" desc="min name">
+      Minimal SSL version.
+      </message>
+
+      <message name="IDS_FLAGS_SSL_VERSION_FALLBACK_MIN_DESCRIPTION" desc="fallback min desc">
+      When an SSL/TLS handshake fails, the browser will retry the connection
+      with a lesser version of SSL/TLS in order to work around bugs in HTTPS
+      servers. This setting configures the version at which this fallback
+      process will stop. Independent of this setting, the browser will never
+      attempt a connection with lesser security than specified at "Minimal SSL
+      version".
+
+      Note that the SSL/TLS versions are listed in increasing order of security,
+      i.e. SSL 3 is least secure and TLS 1.2 is most secure.
+      </message>
+      <message name="IDS_FLAGS_SSL_VERSION_FALLBACK_MIN_NAME" desc="fallback min name">
+      Minimum SSL version to fallback to.
+      </message>
+
+      <message name="IDS_SSL_VERSION_MIN_SSL3" desc="ssl3">
+      ssl3
+      </message>
+      <message name="IDS_SSL_VERSION_MIN_TLS1" desc="tls1">
+      tls1
+      </message>
+      <message name="IDS_SSL_VERSION_MIN_TLS1_1" desc="tls1.1">
+      tls1.1
+      </message>
+      <message name="IDS_SSL_VERSION_MIN_TLS1_2" desc="tls1.2">
+      tls1.2
+      </message>
+
       <!-- Misc strings for SSL UI -->
       <message name="IDS_UNSAFE_FRAME_MESSAGE" desc="The text displayed in the content that is subsituted to an unsafe frame.">
         This frame was blocked because it contains some insecure content.