First pass at adding http/backend cache to NetLog

net/http/http_network_session.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_HTTP_HTTP_NETWORK_SESSION_H_
 #define NET_HTTP_HTTP_NETWORK_SESSION_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 109 matching lines @@
     return http_auth_handler_factory_;
   }
   HttpNetworkDelegate* network_delegate() {
     return network_delegate_;
   }
 
   HttpStreamFactory* http_stream_factory() {
     return &http_stream_factory_;
   }
 
+  NetLog* net_log() {
+    return net_log_;
+  }
+
   // Creates a Value summary of the state of the socket pools. The caller is
   // responsible for deleting the returned value.
   Value* SocketPoolInfoToValue() const {
     return socket_pool_manager_.SocketPoolInfoToValue();
   }
 
   // Creates a Value summary of the state of the SPDY sessions. The caller is
   // responsible for deleting the returned value.
   Value* SpdySessionPoolInfoToValue() const;
 
@@ skipping 24 matching lines @@
   HttpAuthHandlerFactory* http_auth_handler_factory_;
   HttpNetworkDelegate* const network_delegate_;
   NetLog* net_log_;
   SpdySettingsStorage spdy_settings_;
   std::set<HttpResponseBodyDrainer*> response_drainers_;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NETWORK_SESSION_H_