Add migration from CaCert NSS nicknames to PEM.

chromeos/network/network_cert_migrator.h

Index: chromeos/network/network_cert_migrator.h
diff --git a/chromeos/network/network_cert_migrator.h b/chromeos/network/network_cert_migrator.h
new file mode 100644
index 0000000000000000000000000000000000000000..3a4d60763d1a14cac7ae15f852e5685950917ad4
--- /dev/null
+++ b/chromeos/network/network_cert_migrator.h
@@ -0,0 +1,50 @@
+// Copyright (c) 2013 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.
+
+#ifndef CHROMEOS_NETWORK_NETWORK_CERT_MIGRATOR_H_
+#define CHROMEOS_NETWORK_NETWORK_CERT_MIGRATOR_H_
+
+#include "base/basictypes.h"
+#include "base/memory/weak_ptr.h"
+#include "chromeos/cert_loader.h"
+#include "chromeos/chromeos_export.h"
+#include "chromeos/network/network_state_handler_observer.h"
+
+namespace chromeos {
+
+class NetworkStateHandler;
+
+// Migrates network configurations from deprecated CaCertNSS properties to
+// CaCertPEM.
+class CHROMEOS_EXPORT NetworkCertMigrator : public NetworkStateHandlerObserver,
+                                            public CertLoader::Observer {
+ public:
+  virtual ~NetworkCertMigrator();
+
+ private:
+  friend class NetworkHandler;
+  friend class NetworkCertMigratorTest;
+  class MigrationTask;
+
+  NetworkCertMigrator();
+  void Init(NetworkStateHandler* network_state_handler);
+
+   // NetworkStateHandlerObserver overrides
+  virtual void NetworkListChanged() OVERRIDE;
+
+  // CertLoader::Observer overrides
+  virtual void OnCertificatesLoaded(const net::CertificateList& cert_list,
+                                    bool initial_load) OVERRIDE;
+
+  // Unowned associated NetworkStateHandler* (global or test instance).
+  NetworkStateHandler* network_state_handler_;
+
+  base::WeakPtrFactory<NetworkCertMigrator> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(NetworkCertMigrator);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_NETWORK_NETWORK_CERT_MIGRATOR_H_