Support for client certs in ssl_server_socket.

net/socket/ssl_client_socket_openssl.cc

Index: net/socket/ssl_client_socket_openssl.cc
diff --git a/net/socket/ssl_client_socket_openssl.cc b/net/socket/ssl_client_socket_openssl.cc
index 0d39f6483f2b3bcfed6a543a61e78995d917828a..9b260b78526e9e7b9ae6f83f98e446371f62cdbd 100644
--- a/net/socket/ssl_client_socket_openssl.cc
+++ b/net/socket/ssl_client_socket_openssl.cc
@@ -28,6 +28,7 @@
 #include "base/values.h"
 #include "crypto/ec_private_key.h"
 #include "crypto/openssl_util.h"
+#include "crypto/rsa_private_key.h"
 #include "crypto/scoped_openssl_types.h"
 #include "net/base/ip_address_number.h"
 #include "net/base/net_errors.h"
@@ -1802,9 +1803,11 @@ int SSLClientSocketOpenSSL::ClientCertRequestCallback(SSL* ssl) {
 #else
     // TODO(davidben): Lift this call up to the embedder so we can actually test
     // this code. https://crbug.com/394131
-    private_key_ = FetchClientCertPrivateKey(
-        ssl_config_.client_cert.get(),
-        g_platform_key_task_runner.Get().task_runner());
+    if (!private_key_) {
+      private_key_ = FetchClientCertPrivateKey(
+          ssl_config_.client_cert.get(),
+          g_platform_key_task_runner.Get().task_runner());
+    }
     if (!private_key_) {
       // Could not find the private key. Fail the handshake and surface an
       // appropriate error to the caller.
@@ -2161,4 +2164,12 @@ void SSLClientSocketOpenSSL::OnPrivateKeySignComplete(
   PumpReadWriteEvents();
 }
 
+void SSLClientSocketOpenSSL::ForceClientCertificateAndKeyForTest(
+    scoped_refptr<X509Certificate> client_cert,
+    scoped_ptr<SSLPrivateKey> client_private_key) {
+  ssl_config_.send_client_cert = true;
+  ssl_config_.client_cert = client_cert;
+  private_key_ = client_private_key.Pass();
+}
+
 }  // namespace net