[Chromoting] Refactor the host policy watcher so that policies can easily be added.

remoting/host/policy_hack/mock_policy_callback.h

+// Copyright (c) 2012 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 REMOTING_HOST_POLICY_HACK_MOCK_POLICY_CALLBACK_H_
+#define REMOTING_HOST_POLICY_HACK_MOCK_POLICY_CALLBACK_H_
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace remoting {
+namespace policy_hack {
+
+class MockPolicyCallback {
+ public:
+  MockPolicyCallback();
+  virtual ~MockPolicyCallback();
+
+  MOCK_METHOD1(OnPolicyUpdatePtr, void(const base::DictionaryValue* policies));
+  void OnPolicyUpdate(scoped_ptr<base::DictionaryValue> policies);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockPolicyCallback);
+};
+
+}  // namespace policy_hack
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_POLICY_HACK_MOCK_POLICY_CALLBACK_H_