Implement pretty-printer for QuicConnectionStats

net/quic/core/quic_connection_stats.cc

Index: net/quic/core/quic_connection_stats.cc
diff --git a/net/quic/core/quic_connection_stats.cc b/net/quic/core/quic_connection_stats.cc
index 7d50bf8f56724d945023a2904b42834ddd6d69b0..7f7935b87deb14e627d630eb5e57f19d3ad2559b 100644
--- a/net/quic/core/quic_connection_stats.cc
+++ b/net/quic/core/quic_connection_stats.cc
@@ -48,4 +48,44 @@ QuicConnectionStats::QuicConnectionStats(const QuicConnectionStats& other) =
 
 QuicConnectionStats::~QuicConnectionStats() {}
 
+ostream& operator<<(ostream& os, const QuicConnectionStats& s) {
+  os << "{ bytes_sent: " << s.bytes_sent;
+  os << " packets_sent: " << s.packets_sent;
+  os << " stream_bytes_sent: " << s.stream_bytes_sent;
+  os << " packets_discarded: " << s.packets_discarded;
+  os << " bytes_received: " << s.bytes_received;
+  os << " packets_received: " << s.packets_received;
+  os << " packets_processed: " << s.packets_processed;
+  os << " stream_bytes_received: " << s.stream_bytes_received;
+  os << " bytes_retransmitted: " << s.bytes_retransmitted;
+  os << " packets_retransmitted: " << s.packets_retransmitted;
+  os << " bytes_spuriously_retransmitted: " << s.bytes_spuriously_retransmitted;
+  os << " packets_spuriously_retransmitted: "
+     << s.packets_spuriously_retransmitted;
+  os << " packets_lost: " << s.packets_lost;
+  os << " slowstart_packets_sent: " << s.slowstart_packets_sent;
+  os << " slowstart_packets_lost: " << s.slowstart_packets_lost;
+  os << " slowstart_bytes_lost: " << s.slowstart_bytes_lost;
+  os << " packets_dropped: " << s.packets_dropped;
+  os << " crypto_retransmit_count: " << s.crypto_retransmit_count;
+  os << " loss_timeout_count: " << s.loss_timeout_count;
+  os << " tlp_count: " << s.tlp_count;
+  os << " rto_count: " << s.rto_count;
+  os << " min_rtt_us: " << s.min_rtt_us;
+  os << " srtt_us: " << s.srtt_us;
+  os << " max_packet_size: " << s.max_packet_size;
+  os << " max_received_packet_size: " << s.max_received_packet_size;
+  os << " estimated_bandwidth: " << s.estimated_bandwidth;
+  os << " packets_reordered: " << s.packets_reordered;
+  os << " max_sequence_reordering: " << s.max_sequence_reordering;
+  os << " max_time_reordering_us: " << s.max_time_reordering_us;
+  os << " tcp_loss_events: " << s.tcp_loss_events;
+  os << " connection_creation_time: "
+     << s.connection_creation_time.ToDebuggingValue();
+  os << " blocked_frames_received: " << s.blocked_frames_received;
+  os << " blocked_frames_sent: " << s.blocked_frames_sent << " }";
+
+  return os;
+}
+
 }  // namespace net