Preparation for Chrome experiment to enable bandwidth resumption.

net/quic/quic_connection.cc

Index: net/quic/quic_connection.cc
diff --git a/net/quic/quic_connection.cc b/net/quic/quic_connection.cc
index 61fd3c140ae4c0eb1654d40f4bff94c147a5f820..716aa854486a2a0eb916eba7869b1a6368098c61 100644
--- a/net/quic/quic_connection.cc
+++ b/net/quic/quic_connection.cc
@@ -282,6 +282,11 @@ void QuicConnection::SetFromConfig(const QuicConfig& config) {
   max_undecryptable_packets_ = config.max_undecryptable_packets();
 }
 
+void QuicConnection::ResumeConnectionState(
+    const CachedNetworkParameters& cached_network_params) {
+  sent_packet_manager_.ResumeConnectionState(cached_network_params);
+}
+
 void QuicConnection::SetNumOpenStreams(size_t num_streams) {
   sent_packet_manager_.SetNumOpenStreams(num_streams);
 }