Send PING to check the status of the SPDY connection.

net/spdy/spdy_http_stream.h

 // Copyright (c) 2011 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_HTTP_STREAM_H_
 #define NET_SPDY_SPDY_HTTP_STREAM_H_
 #pragma once
 
 #include <list>
 #include <string>
@@ skipping 68 matching lines @@
                                  base::Time response_time,
                                  int status) OVERRIDE;
   virtual void OnDataReceived(const char* buffer, int bytes) OVERRIDE;
   virtual void OnDataSent(int length) OVERRIDE;
   virtual void OnClose(int status) OVERRIDE;
   virtual void set_chunk_callback(ChunkCallback* callback) OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(SpdyNetworkTransactionTest, FlowControlStallResume);
 
+  void CheckPingResponse();
+
   // Call the user callback.
   void DoCallback(int rv);
 
   void ScheduleBufferedReadCallback();
 
   // Returns true if the callback is invoked.
   bool DoBufferedReadCallback();
   bool ShouldWaitForMoreBufferedData() const;
 
   ScopedRunnableMethodFactory<SpdyHttpStream> read_callback_factory_;
+  ScopedRunnableMethodFactory<SpdyHttpStream> ping_method_factory_;
   scoped_refptr<SpdyStream> stream_;
   scoped_refptr<SpdySession> spdy_session_;
 
   // The request to send.
   const HttpRequestInfo* request_info_;
 
   scoped_ptr<UploadDataStream> request_body_stream_;
 
   // |response_info_| is the HTTP response data object which is filled in
   // when a SYN_REPLY comes in for the stream.
@@ skipping 25 matching lines @@
   bool direct_;
 
   bool send_last_chunk_;
 
   DISALLOW_COPY_AND_ASSIGN(SpdyHttpStream);
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_HTTP_STREAM_H_