[SPDY] Use WeakPtr<SpdySession> everywhere but SpdySessionPool

net/http/http_proxy_client_socket_pool.cc

 // 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.
 
 #include "net/http/http_proxy_client_socket_pool.h"
 
 #include <algorithm>
 
 #include "base/compiler_specific.h"
 #include "base/time/time.h"
@@ skipping 284 matching lines @@
   return result;
 }
 
 int HttpProxyConnectJob::DoSpdyProxyCreateStream() {
   DCHECK(using_spdy_);
   DCHECK(params_->tunnel());
   SpdySessionKey key(params_->destination().host_port_pair(),
                      ProxyServer::Direct(),
                      kPrivacyModeDisabled);
   SpdySessionPool* spdy_pool = params_->spdy_session_pool();
-  scoped_refptr<SpdySession> spdy_session =
+  base::WeakPtr<SpdySession> spdy_session =
       spdy_pool->FindAvailableSession(key, net_log());
   // It's possible that a session to the proxy has recently been created
   if (spdy_session) {
     if (transport_socket_handle_.get()) {
       if (transport_socket_handle_->socket())
         transport_socket_handle_->socket()->Disconnect();
       transport_socket_handle_->Reset();
     }
   } else {
     // Create a session direct to the proxy itself
@@ skipping 216 matching lines @@
   return base_.histograms();
 }
 
 bool HttpProxyClientSocketPool::CloseOneIdleConnection() {
   if (base_.CloseOneIdleSocket())
     return true;
   return base_.CloseOneIdleConnectionInLayeredPool();
 }
 
 }  // namespace net