Revert of Remove reference counting from HttpNetworkSession.

components/gcm_driver/gcm_client_impl.h

Index: components/gcm_driver/gcm_client_impl.h
diff --git a/components/gcm_driver/gcm_client_impl.h b/components/gcm_driver/gcm_client_impl.h
index 176ee78441186368eaaad760bc73b7a6cf5bad03..2542c68d8754aec270ce72ed2206f42fb4cae2fb 100644
--- a/components/gcm_driver/gcm_client_impl.h
+++ b/components/gcm_driver/gcm_client_impl.h
@@ -26,6 +26,7 @@
 #include "google_apis/gcm/engine/unregistration_request.h"
 #include "google_apis/gcm/protocol/android_checkin.pb.h"
 #include "google_apis/gcm/protocol/checkin.pb.h"
+#include "net/log/net_log.h"
 #include "net/url_request/url_request_context_getter.h"
 
 class GURL;
@@ -66,8 +67,9 @@
   virtual scoped_ptr<ConnectionFactory> BuildConnectionFactory(
       const std::vector<GURL>& endpoints,
       const net::BackoffEntry::Policy& backoff_policy,
-      net::HttpNetworkSession* gcm_network_session,
-      net::HttpNetworkSession* http_network_session,
+      const scoped_refptr<net::HttpNetworkSession>& gcm_network_session,
+      const scoped_refptr<net::HttpNetworkSession>& http_network_session,
+      net::NetLog* net_log,
       GCMStatsRecorder* recorder);
 };
 
@@ -334,12 +336,12 @@
   // resetting and loading from the store again and again.
   bool gcm_store_reset_;
 
-  scoped_ptr<net::HttpNetworkSession> network_session_;
+  scoped_refptr<net::HttpNetworkSession> network_session_;
+  net::BoundNetLog net_log_;
   scoped_ptr<ConnectionFactory> connection_factory_;
   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
 
   // Controls receiving and sending of packets and reliable message queueing.
-  // Must be destroyed before |network_session_|.
   scoped_ptr<MCSClient> mcs_client_;
 
   scoped_ptr<CheckinRequest> checkin_request_;