Cancel posted write callbacks in Disconnect().

net/spdy/spdy_proxy_client_socket.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_SPDY_SPDY_PROXY_CLIENT_SOCKET_H_
 #define NET_SPDY_SPDY_PROXY_CLIENT_SOCKET_H_
 
 #include <list>
 #include <string>
 
@@ skipping 95 matching lines @@
     STATE_GENERATE_AUTH_TOKEN_COMPLETE,
     STATE_SEND_REQUEST,
     STATE_SEND_REQUEST_COMPLETE,
     STATE_READ_REPLY_COMPLETE,
     STATE_OPEN,
     STATE_CLOSED
   };
 
   void LogBlockedTunnelResponse() const;
 
+  // Calls |callback.Run(result)|. Used to post a callback for the message
+  // loop to run later.
+  void RunCallback(const CompletionCallback& callback, int result) const;
+
   void OnIOComplete(int result);
 
   int DoLoop(int last_io_result);
   int DoGenerateAuthToken();
   int DoGenerateAuthTokenComplete(int result);
   int DoSendRequest();
   int DoSendRequestComplete(int result);
   int DoReadReplyComplete(int result);
 
   // Populates |user_buffer_| with as much read data as possible
@@ skipping 32 matching lines @@
 
   // True if the transport socket has ever sent data.
   bool was_ever_used_;
 
   // Used only for redirects.
   bool redirect_has_load_timing_info_;
   LoadTimingInfo redirect_load_timing_info_;
 
   const BoundNetLog net_log_;
 
+  // The default weak pointer factory.
   base::WeakPtrFactory<SpdyProxyClientSocket> weak_factory_;
 
+  // Only used for posting write callbacks. Weak pointers created by this
+  // factory are invalidated in Disconnect().
+  base::WeakPtrFactory<SpdyProxyClientSocket> write_callback_weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(SpdyProxyClientSocket);
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_PROXY_CLIENT_SOCKET_H_