Add tests for SSL_export_keying_material.

Change-Id: Ic4d3ade08aa648ce70ada9981e894b6c1c4197c6
Reviewed-on: https://boringssl-review.googlesource.com/4215
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/ssl/test/test_config.cc b/ssl/test/test_config.cc
index 253c6a1..2527837 100644
--- a/ssl/test/test_config.cc
+++ b/ssl/test/test_config.cc
@@ -79,6 +79,7 @@
   { "-fail-ddos-callback", &TestConfig::fail_ddos_callback },
   { "-fail-second-ddos-callback", &TestConfig::fail_second_ddos_callback },
   { "-handshake-never-done", &TestConfig::handshake_never_done },
+  { "-use-export-context", &TestConfig::use_export_context },
 };
 
 const Flag<std::string> kStringFlags[] = {
@@ -98,6 +99,8 @@
   { "-psk-identity", &TestConfig::psk_identity },
   { "-srtp-profiles", &TestConfig::srtp_profiles },
   { "-cipher", &TestConfig::cipher },
+  { "-export-label", &TestConfig::export_label },
+  { "-export-context", &TestConfig::export_context },
 };
 
 const Flag<std::string> kBase64Flags[] = {
@@ -113,6 +116,7 @@
   { "-min-version", &TestConfig::min_version },
   { "-max-version", &TestConfig::max_version },
   { "-mtu", &TestConfig::mtu },
+  { "-export-keying-material", &TestConfig::export_keying_material },
 };
 
 }  // namespace