Plumb ConnectionAttempts from HttpNetworkTransaction to URLRequest.

net/url_request/url_request.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_URL_REQUEST_URL_REQUEST_H_
 #define NET_URL_REQUEST_URL_REQUEST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 10 matching lines @@
 #include "net/base/load_states.h"
 #include "net/base/load_timing_info.h"
 #include "net/base/net_export.h"
 #include "net/base/network_delegate.h"
 #include "net/base/request_priority.h"
 #include "net/base/upload_progress.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/http/http_request_headers.h"
 #include "net/http/http_response_info.h"
 #include "net/log/net_log.h"
+#include "net/socket/connection_attempts.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 namespace base {
 class Value;
 
 namespace debug {
 class StackTrace;
 }  // namespace debug
 }  // namespace base
@@ skipping 560 matching lines @@
   int64 received_response_content_length() const {
     return received_response_content_length_;
   }
 
   // Available at NetworkDelegate::NotifyHeadersReceived() time, which is before
   // the more general response_info() is available, even though it is a subset.
   const HostPortPair& proxy_server() const {
     return proxy_server_;
   }
 
+  void GetConnectionAttempts(ConnectionAttempts* out) const;

[Randy Smith (Not in Mondays), 2015/05/11 20:59:31]

Should this have a comment as to when during the URLRequest lifetime this will
be valid and what it will include?  Or is that overkill?  (Up to you.)

+
  protected:
   // Allow the URLRequestJob class to control the is_pending() flag.
   void set_is_pending(bool value) { is_pending_ = value; }
 
   // Allow the URLRequestJob class to set our status too
   void set_status(const URLRequestStatus& value) { status_ = value; }
 
   // Allow the URLRequestJob to redirect this request.  Returns OK if
   // successful, otherwise an error code is returned.
   int Redirect(const RedirectInfo& redirect_info);
@@ skipping 196 matching lines @@
 
   // The proxy server used for this request, if any.
   HostPortPair proxy_server_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequest);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_H_