Add QUIC v40 which will be used to include changes:

net/quic/chromium/quic_http_stream.cc

Index: net/quic/chromium/quic_http_stream.cc
diff --git a/net/quic/chromium/quic_http_stream.cc b/net/quic/chromium/quic_http_stream.cc
index 36e91189b06d59c899d8436358373d6eacaf5485..e2e904871150f7e79a4cee97b4a0df89d737ac4d 100644
--- a/net/quic/chromium/quic_http_stream.cc
+++ b/net/quic/chromium/quic_http_stream.cc
@@ -141,6 +141,8 @@ HttpResponseInfo::ConnectionInfo QuicHttpStream::ConnectionInfoFromQuicVersion(
       return HttpResponseInfo::CONNECTION_INFO_QUIC_38;
     case QUIC_VERSION_39:
       return HttpResponseInfo::CONNECTION_INFO_QUIC_39;
+    case QUIC_VERSION_40:
+      return HttpResponseInfo::CONNECTION_INFO_QUIC_40;
   }
   NOTREACHED();
   return HttpResponseInfo::CONNECTION_INFO_QUIC_UNKNOWN_VERSION;