Remove unused SpdyStream::response_status_.

Change-Id: I1806570ef5d7d6f62dd2e7d3bbe9d33d7dce2646
Reviewed-on: https://chromium-review.googlesource.com/c/1484825Reviewed-by: Zhongyi Shi <zhongyi@chromium.org>
Commit-Queue: Bence Béky <bnc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#635228}

net/spdy/spdy_stream.cc

@@ -106,7 +106,6 @@ SpdyStream::SpdyStream(SpdyStreamType type,
       request_time_(base::Time::Now()),
       response_state_(READY_FOR_HEADERS),
       io_state_(STATE_IDLE),
-      response_status_(OK),
       net_log_(net_log),
       raw_received_bytes_(0),
       raw_sent_bytes_(0),
@@ -686,7 +685,6 @@ void SpdyStream::OnClose(int status) {
       status = OK;
     }
   }
-  response_status_ = status;
   Delegate* delegate = delegate_;
   delegate_ = NULL;
   if (delegate)

net/spdy/spdy_stream.h

@@ -370,8 +370,6 @@ class NET_EXPORT_PRIVATE SpdyStream {
   // yet.
   bool IsReservedRemote() const;
 
-  int response_status() const { return response_status_; }
-
   void AddRawReceivedBytes(size_t received_bytes);
   void AddRawSentBytes(size_t sent_bytes);
 
@@ -512,10 +510,6 @@ class NET_EXPORT_PRIVATE SpdyStream {
 
   State io_state_;
 
-  // Since we buffer the response, we also buffer the response status.
-  // Not valid until the stream is closed.
-  int response_status_;
-
   NetLogWithSource net_log_;
 
   base::TimeTicks send_time_;