Refactor client cert private key handling.

net/url_request/url_request_http_job.h

Index: net/url_request/url_request_http_job.h
diff --git a/net/url_request/url_request_http_job.h b/net/url_request/url_request_http_job.h
index bb6fc0c74cce4c119dd959ba95cc08c3fc7af861..410618350b7135e0d0e82ed66f2af7169093f4c9 100644
--- a/net/url_request/url_request_http_job.h
+++ b/net/url_request/url_request_http_job.h
@@ -129,8 +129,9 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   void GetAuthChallengeInfo(scoped_refptr<AuthChallengeInfo>*) override;
   void SetAuth(const AuthCredentials& credentials) override;
   void CancelAuth() override;
-  void ContinueWithCertificate(X509Certificate* client_cert,
-                               SSLPrivateKey* client_private_key) override;
+  void ContinueWithCertificate(
+      scoped_refptr<X509Certificate> client_cert,
+      scoped_refptr<SSLPrivateKey> client_private_key) override;
   void ContinueDespiteLastError() override;
   int ReadRawData(IOBuffer* buf, int buf_size) override;
   void StopCaching() override;