Resetting the HttpRequestInfo pointers in HttpNetworkTransaction and streams

net/http/http_stream_parser.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_PARSER_H_
 #define NET_HTTP_HTTP_STREAM_PARSER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string_piece.h"
 #include "crypto/ec_private_key.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_export.h"
-#include "net/base/upload_progress.h"
 #include "net/log/net_log.h"
 
 namespace net {
 
 class ClientSocketHandle;
 class DrainableIOBuffer;
 class GrowableIOBuffer;
 class HttpChunkedDecoder;
 struct HttpRequestInfo;
 class HttpRequestHeaders;
@@ skipping 32 matching lines @@
                   HttpResponseInfo* response,
                   const CompletionCallback& callback);
 
   int ReadResponseHeaders(const CompletionCallback& callback);
 
   int ReadResponseBody(IOBuffer* buf, int buf_len,
                        const CompletionCallback& callback);
 
   void Close(bool not_reusable);
 
-  // Returns the progress of uploading. When data is chunked, size is set to
-  // zero, but position will not be.
-  UploadProgress GetUploadProgress() const;
-
   bool IsResponseBodyComplete() const;
 
   bool CanFindEndOfResponse() const;
 
   bool IsMoreDataBuffered() const;
 
   bool IsConnectionReused() const;
 
   void SetConnectionReused();
 
@@ skipping 108 matching lines @@
 
   // Examine the parsed headers to try to determine the response body size.
   void CalculateResponseBodySize();
 
   // Uploads statistics about status line compliance with RFC 7230.
   void ValidateStatusLine(const std::string& status_line);
 
   // Check if buffers used to send the request are empty.
   bool SendRequestBuffersEmpty();
 
+  // Sets request_ to null.
+  void ResetRequestInfo();
+
   // Next state of the request, when the current one completes.
   State io_state_;
 
-  // The request to send.
+  // Null when read state machine is invoked. This is to allow the stream
+  // to be shared for reading and to possibly outlive request_'s owner.
   const HttpRequestInfo* request_;
 
   // The request header data.  May include a merged request body.
   scoped_refptr<DrainableIOBuffer> request_headers_;
 
   // Size of just the request headers.  May be less than the length of
   // |request_headers_| if the body was merged with the headers.
   int request_headers_length_;
 
   // True if HTTP/0.9 should be permitted on non-default ports.
@@ skipping 71 matching lines @@
   int upload_error_;
 
   base::WeakPtrFactory<HttpStreamParser> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpStreamParser);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_PARSER_H_