Add support for fetching Certificate Transparency SCTs over a TLS extension

net/test/spawned_test_server/base_test_server.cc

Index: net/test/spawned_test_server/base_test_server.cc
diff --git a/net/test/spawned_test_server/base_test_server.cc b/net/test/spawned_test_server/base_test_server.cc
index b8697d49f5155702f8c0bc4b39d73a578b69cfc0..775341b608e6bd93ffe56712b1a676a3477b9bc5 100644
--- a/net/test/spawned_test_server/base_test_server.cc
+++ b/net/test/spawned_test_server/base_test_server.cc
@@ -398,6 +398,12 @@ bool BaseTestServer::GenerateArguments(base::DictionaryValue* arguments) const {
       arguments->Set("tls-intolerant",
                      new base::FundamentalValue(ssl_options_.tls_intolerant));
     }
+    if (!ssl_options_.signed_cert_timestamps.empty()) {
+      std::string b64_scts;
+      if (!base::Base64Encode(ssl_options_.signed_cert_timestamps, &b64_scts))
+        return false;
+      arguments->SetString("signed-cert-timestamps", b64_scts);
+    }
   }
 
   return GenerateAdditionalArguments(arguments);