Add HTTP/2 error code from latest draft.

net/spdy/spdy_session_unittest.cc

Index: net/spdy/spdy_session_unittest.cc
diff --git a/net/spdy/spdy_session_unittest.cc b/net/spdy/spdy_session_unittest.cc
index c6447bf05e9be3b62234795bfe03e61c2f66df40..256e1a7efd19bd5e7c649a8af5e3c31ca131bed1 100644
--- a/net/spdy/spdy_session_unittest.cc
+++ b/net/spdy/spdy_session_unittest.cc
@@ -5019,6 +5019,10 @@ TEST(MapRstStreamStatusToProtocolError, MapsValues) {
            MapRstStreamStatusToProtocolError(RST_STREAM_FRAME_SIZE_ERROR));
   CHECK_EQ(STATUS_CODE_ENHANCE_YOUR_CALM,
            MapRstStreamStatusToProtocolError(RST_STREAM_ENHANCE_YOUR_CALM));
+  CHECK_EQ(STATUS_CODE_INADEQUATE_SECURITY,
+           MapRstStreamStatusToProtocolError(RST_STREAM_INADEQUATE_SECURITY));
+  CHECK_EQ(STATUS_CODE_HTTP_1_1_REQUIRED,
+           MapRstStreamStatusToProtocolError(RST_STREAM_HTTP_1_1_REQUIRED));
 }
 
 TEST(MapNetErrorToGoAwayStatus, MapsValue) {