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

remoting/host/policy_hack/fake_policy_watcher.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_FAKE_POLICY_WATCHER_H_
+#define REMOTING_HOST_POLICY_HACK_FAKE_POLICY_WATCHER_H_
+
+#include "remoting/host/policy_hack/policy_watcher.h"
+
+namespace remoting {
+namespace policy_hack {
+
+class FakePolicyWatcher : public PolicyWatcher {
+ public:
+  explicit FakePolicyWatcher(
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner);
+  virtual ~FakePolicyWatcher();
+
+  void SetPolicies(const base::DictionaryValue* policies);
+
+ protected:
+  virtual void StartWatchingInternal() OVERRIDE;
+  virtual void StopWatchingInternal() OVERRIDE;
+  virtual void Reload() OVERRIDE;
+};
+
+}  // namespace policy_hack
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_POLICY_HACK_FAKE_POLICY_WATCHER_H_