Make OpenSSL UpdateServerCert() OS independent.

net/socket/socket_test_util.h

Index: net/socket/socket_test_util.h
diff --git a/net/socket/socket_test_util.h b/net/socket/socket_test_util.h
index e4f655359de33a388c790a75fd416d63e45dff73..17c98aad79f965a62aaf083223e4b244526018da 100644
--- a/net/socket/socket_test_util.h
+++ b/net/socket/socket_test_util.h
@@ -707,6 +707,10 @@ class MockClientSocket : public SSLClientSocket {
   void RunCallbackAsync(const CompletionCallback& callback, int result);
   void RunCallback(const CompletionCallback& callback, int result);
 
+  // SSLClientSocket implementation.
+  virtual scoped_refptr<X509Certificate> GetUnverifiedServerCertificateChain()
+      const OVERRIDE;
+
   // True if Connect completed successfully and Disconnect hasn't been called.
   bool connected_;