[SPDY] Use WeakPtr<SpdySession> everywhere but SpdySessionPool

net/http/http_stream_factory_impl.h

 // Copyright (c) 2012 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_STREAM_FACTORY_IMPL_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_
 
 #include <map>
 #include <set>
 #include <vector>
@@ skipping 76 matching lines @@
   PortAlternateProtocolPair GetAlternateProtocolRequestFor(
       const GURL& original_url,
       GURL* alternate_url) const;
 
   // Detaches |job| from |request|.
   void OrphanJob(Job* job, const Request* request);
 
   // Called when a SpdySession is ready. It will find appropriate Requests and
   // fulfill them. |direct| indicates whether or not |spdy_session| uses a
   // proxy.
-  void OnNewSpdySessionReady(scoped_refptr<SpdySession> spdy_session,
+  void OnNewSpdySessionReady(const base::WeakPtr<SpdySession>& spdy_session,
                              bool direct,
                              const SSLConfig& used_ssl_config,
                              const ProxyInfo& used_proxy_info,
                              bool was_npn_negotiated,
                              NextProto protocol_negotiated,
                              bool using_spdy,
                              const BoundNetLog& net_log);
 
   // Called when the Job detects that the endpoint indicated by the
   // Alternate-Protocol does not work. Lets the factory update
@@ skipping 38 matching lines @@
   // deleted when the factory is destroyed.
   std::set<const Job*> preconnect_job_set_;
 
   const bool for_websockets_;
   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactoryImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_