Enhance net internals/net log output for QUIC.

net/quic/quic_reliable_client_stream.h

Index: net/quic/quic_reliable_client_stream.h
diff --git a/net/quic/quic_reliable_client_stream.h b/net/quic/quic_reliable_client_stream.h
index fd5e6cc294ae86e56c873768f00d72f9945fb4a5..77ac787f10df8dfc69530d06970e10ed7c13abac 100644
--- a/net/quic/quic_reliable_client_stream.h
+++ b/net/quic/quic_reliable_client_stream.h
@@ -56,7 +56,8 @@ class NET_EXPORT_PRIVATE QuicReliableClientStream : public ReliableQuicStream {
   };
 
   QuicReliableClientStream(QuicStreamId id,
-                           QuicSession* session);
+                           QuicSession* session,
+                           const BoundNetLog& net_log);
 
   virtual ~QuicReliableClientStream();
 
@@ -72,7 +73,10 @@ class NET_EXPORT_PRIVATE QuicReliableClientStream : public ReliableQuicStream {
   Delegate* GetDelegate() { return delegate_; }
   void OnError(int error);
 
+  const BoundNetLog& net_log() const { return net_log_; }
+
  private:
+  BoundNetLog net_log_;
   Delegate* delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicReliableClientStream);