Refactor client cert private key handling.

chrome/browser/ssl/ssl_client_auth_requestor_mock.h

Index: chrome/browser/ssl/ssl_client_auth_requestor_mock.h
diff --git a/chrome/browser/ssl/ssl_client_auth_requestor_mock.h b/chrome/browser/ssl/ssl_client_auth_requestor_mock.h
index 73e5c36d81245aa903a78b88bd6086fc378fac84..1dfc9b9e27e99356128b66083720bdc52d8c2138 100644
--- a/chrome/browser/ssl/ssl_client_auth_requestor_mock.h
+++ b/chrome/browser/ssl/ssl_client_auth_requestor_mock.h
@@ -16,6 +16,7 @@ class ClientCertificateDelegate;
 
 namespace net {
 class SSLCertRequestInfo;
+class SSLPrivateKey;
 class URLRequest;
 class X509Certificate;
 }
@@ -29,7 +30,8 @@ class SSLClientAuthRequestorMock
 
   std::unique_ptr<content::ClientCertificateDelegate> CreateDelegate();
 
-  MOCK_METHOD1(CertificateSelected, void(net::X509Certificate* cert));
+  MOCK_METHOD2(CertificateSelected,
+               void(net::X509Certificate* cert, net::SSLPrivateKey* key));
   MOCK_METHOD0(CancelCertificateSelection, void());
 
   scoped_refptr<net::SSLCertRequestInfo> cert_request_info_;