Plumb ConnectionAttempts from HttpNetworkTransaction to URLRequest.

net/url_request/url_request.h

Index: net/url_request/url_request.h
diff --git a/net/url_request/url_request.h b/net/url_request/url_request.h
index e623c202e71f1b0ed412e5998cd51f0015e3ab3b..16ada0c422703264bf417e15aab8823ee8becf0b 100644
--- a/net/url_request/url_request.h
+++ b/net/url_request/url_request.h
@@ -28,6 +28,7 @@
 #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"
 
@@ -608,6 +609,11 @@ class NET_EXPORT URLRequest : NON_EXPORTED_BASE(public base::NonThreadSafe),
     return proxy_server_;
   }
 
+  // Gets the connection attempts made in the process of servicing this
+  // URLRequest. Only guaranteed to be valid if called after the request fails
+  // or after the response headers are received.
+  void GetConnectionAttempts(ConnectionAttempts* out) const;
+
  protected:
   // Allow the URLRequestJob class to control the is_pending() flag.
   void set_is_pending(bool value) { is_pending_ = value; }