Adding a NetworkProfileHandler used by ManagedNetworkConfigurationHandler.

chromeos/network/network_profile_observer.h

+// 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_PROFILE_OBSERVER_H_
+#define CHROMEOS_NETWORK_NETWORK_PROFILE_OBSERVER_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "chromeos/network/network_profile.h"
+
+namespace chromeos {
+
+struct NetworkProfileState;
+
+class NetworkProfileObserver {
+ public:
+  NetworkProfileObserver() {}

[stevenjb, 2013/05/03 18:34:53]

nit: as a pure virtual class, this doesn't really need either a constructor or
DISALLOW (with the destructor protected), but I really don't think it's
important enough to merit further discussion :)

[pneubeck (no reviews), 2013/05/06 07:24:43]

I think we found the sweet spot.
The disallowed assign prevents things like:

Observer *a, *b = ...
*a = *b;

Copy/Default constructor are useless (the latter was necessary, because of the
former).

+  virtual void OnProfileAdded(const NetworkProfile& profile) = 0;
+  virtual void OnProfileRemoved(const NetworkProfile& profile) = 0;
+
+ protected:
+  virtual ~NetworkProfileObserver() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(NetworkProfileObserver);
+};
+
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_NETWORK_NETWORK_PROFILE_OBSERVER_H_