Enhance net internals/net log output for QUIC.

net/quic/quic_client_session.h

Index: net/quic/quic_client_session.h
diff --git a/net/quic/quic_client_session.h b/net/quic/quic_client_session.h
index 637514f9477a3e683ec81c8966747c18f7b455b7..0247e4d0fb52de7daf34c52a9d816792d0d5a86f 100644
--- a/net/quic/quic_client_session.h
+++ b/net/quic/quic_client_session.h
@@ -31,7 +31,8 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicSession {
   QuicClientSession(QuicConnection* connection,
                     QuicConnectionHelper* helper,
                     QuicStreamFactory* stream_factory,
-                    const std::string& server_hostname);
+                    const std::string& server_hostname,
+                    NetLog* net_log);
 
   virtual ~QuicClientSession();
 
@@ -53,6 +54,8 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicSession {
 
   base::Value* GetInfoAsValue(const HostPortPair& pair) const;
 
+  const BoundNetLog& net_log() const { return net_log_; }
+
  protected:
   // QuicSession methods:
   virtual ReliableQuicStream* CreateIncomingReliableStream(
@@ -69,6 +72,8 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicSession {
   scoped_refptr<IOBufferWithSize> read_buffer_;
   bool read_pending_;
   CompletionCallback callback_;
+  size_t num_total_streams_;
+  BoundNetLog net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicClientSession);
 };