Adds support for the <keygen> tag for client certificate enrollment...

net/base/keygen_handler_mac.cc

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/base/keygen_handler.h"
+
+#include "base/logging.h"
+
+namespace net {
+
+KeygenHandler::KeygenHandler(int key_size_index,
+                             const std::string& challenge)
+    : key_size_index_(key_size_index),
+      challenge_(challenge) {
+  NOTIMPLEMENTED();
+}
+
+std::string KeygenHandler::GenKeyAndSignChallenge() {
+  NOTIMPLEMENTED();
+  return std::string();
+}
+
+}  // namespace net