Resetting the HttpRequestInfo pointers in HttpNetworkTransaction and streams

net/spdy/spdy_http_stream.h

Index: net/spdy/spdy_http_stream.h
diff --git a/net/spdy/spdy_http_stream.h b/net/spdy/spdy_http_stream.h
index 0af46b498675889736c7e3eee80c4be2ed494097..a44ebbb1268667c6c29a32a47fd01c2ef8d16016 100644
--- a/net/spdy/spdy_http_stream.h
+++ b/net/spdy/spdy_http_stream.h
@@ -52,7 +52,6 @@ class NET_EXPORT_PRIVATE SpdyHttpStream : public SpdyStream::Delegate,
   int SendRequest(const HttpRequestHeaders& headers,
                   HttpResponseInfo* response,
                   const CompletionCallback& callback) override;
-  UploadProgress GetUploadProgress() const override;
   int ReadResponseHeaders(const CompletionCallback& callback) override;
   int ReadResponseBody(IOBuffer* buf,
                        int buf_len,
@@ -136,6 +135,8 @@ class NET_EXPORT_PRIVATE SpdyHttpStream : public SpdyStream::Delegate,
   void DoBufferedReadCallback();
   bool ShouldWaitForMoreBufferedData() const;
 
+  void ResetRequestInfo();
+
   const base::WeakPtr<SpdySession> spdy_session_;
   bool is_reused_;
   SpdyStreamRequest stream_request_;
@@ -156,6 +157,9 @@ class NET_EXPORT_PRIVATE SpdyHttpStream : public SpdyStream::Delegate,
   int64_t closed_stream_sent_bytes_;
 
   // The request to send.
+  // Set to null when response body is starting to be read. This is to allow
+  // the stream to be shared for reading and to possibly outlive request_info_'s
+  // owner.
   const HttpRequestInfo* request_info_;
 
   // |response_info_| is the HTTP response data object which is filled in