Refactor client cert private key handling.

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 52418e31daab0dbac76560ef72c3ebab0c3bff32..6df009b6557fb7ff5288b97410ab3f3f5eb8ddfb 100644
--- a/net/url_request/url_request_job.h
+++ b/net/url_request/url_request_job.h
@@ -180,8 +180,9 @@ class NET_EXPORT URLRequestJob : public base::PowerObserver {
   // Display the error page without asking for credentials again.
   virtual void CancelAuth();
 
-  virtual void ContinueWithCertificate(X509Certificate* client_cert,
-                                       SSLPrivateKey* client_private_key);
+  virtual void ContinueWithCertificate(
+      scoped_refptr<X509Certificate> client_cert,
+      scoped_refptr<SSLPrivateKey> client_private_key);
 
   // Continue processing the request ignoring the last error.
   virtual void ContinueDespiteLastError();