Add a new UMA histogram for tracking SpdySessionErrorDetails

net/spdy/buffered_spdy_framer.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_BUFFERED_SPDY_FRAMER_H_
 #define NET_SPDY_BUFFERED_SPDY_FRAMER_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_export.h"
 #include "net/spdy/spdy_framer.h"
 #include "net/spdy/spdy_protocol.h"
 
 namespace net {
 
 class NET_EXPORT_PRIVATE BufferedSpdyFramerVisitorInterface {
  public:
   BufferedSpdyFramerVisitorInterface() {}
   virtual ~BufferedSpdyFramerVisitorInterface() {}
 
   // Called if an error is detected in the SpdyFrame protocol.
-  virtual void OnError(int error_code) = 0;
+  virtual void OnError(SpdyFramer::SpdyError error_code) = 0;
 
   // Called if an error is detected in a SPDY stream.
   virtual void OnStreamError(SpdyStreamId stream_id,
                              const std::string& description) = 0;
 
   // Called after all the header data for SYN_STREAM control frame is received.
   virtual void OnSynStream(const SpdySynStreamControlFrame& frame,
                            const linked_ptr<SpdyHeaderBlock>& headers) = 0;
 
   // Called after all the header data for SYN_REPLY control frame is received.
@@ skipping 123 matching lines @@
   SpdyStreamId header_stream_id_;
   scoped_ptr<SpdyFrame> control_frame_;
   int frames_received_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedSpdyFramer);
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_BUFFERED_SPDY_FRAMER_H_