net: disable SSLv3 fallback.

net/ssl/ssl_config.cc

Index: net/ssl/ssl_config.cc
diff --git a/net/ssl/ssl_config.cc b/net/ssl/ssl_config.cc
index 269934b554b707b320d6d9d1d6286e03cfd4b054..b823f6b9cdc6a90019dfe1c6bb6cafaabdd8e5b6 100644
--- a/net/ssl/ssl_config.cc
+++ b/net/ssl/ssl_config.cc
@@ -10,6 +10,8 @@ const uint16 kDefaultSSLVersionMin = SSL_PROTOCOL_VERSION_SSL3;
 
 const uint16 kDefaultSSLVersionMax = SSL_PROTOCOL_VERSION_TLS1_2;
 
+const uint16 kDefaultSSLVersionFallbackMin = SSL_PROTOCOL_VERSION_TLS1;
+
 SSLConfig::CertAndStatus::CertAndStatus() : cert_status(0) {}
 
 SSLConfig::CertAndStatus::~CertAndStatus() {}
@@ -19,6 +21,7 @@ SSLConfig::SSLConfig()
       rev_checking_required_local_anchors(false),
       version_min(kDefaultSSLVersionMin),
       version_max(kDefaultSSLVersionMax),
+      version_fallback_min(kDefaultSSLVersionFallbackMin),
       channel_id_enabled(true),
       false_start_enabled(true),
       signed_cert_timestamps_enabled(true),