Plumb ConnectionAttempts from HttpNetworkTransaction to URLRequest.

net/url_request/url_request_job.h

Index: net/url_request/url_request_job.h
diff --git a/net/url_request/url_request_job.h b/net/url_request/url_request_job.h
index b6ae4bbeb13af7129c5d875c019962cf94b672de..e7f40823c6926876741bae206ce12cdd65a31212 100644
--- a/net/url_request/url_request_job.h
+++ b/net/url_request/url_request_job.h
@@ -19,6 +19,7 @@
 #include "net/base/request_priority.h"
 #include "net/base/upload_progress.h"
 #include "net/cookies/canonical_cookie.h"
+#include "net/socket/connection_attempts.h"
 #include "net/url_request/redirect_info.h"
 #include "net/url_request/url_request.h"
 #include "url/gurl.h"
@@ -226,6 +227,11 @@ class NET_EXPORT URLRequestJob
   // canceled by an explicit NetworkDelegate::NotifyURLRequestDestroyed() call.
   virtual void NotifyURLRequestDestroyed();
 
+  // Populates |out| with the connection attempts made at the socket layer in
+  // the course of executing the URLRequestJob. Should be called after the job
+  // has failed or the response headers have been received.
+  virtual void GetConnectionAttempts(ConnectionAttempts* out) const;
+
   // Given |policy|, |referrer|, and |redirect_destination|, returns the
   // referrer URL mandated by |request|'s referrer policy.
   static GURL ComputeReferrerForRedirect(URLRequest::ReferrerPolicy policy,