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diff --git a/device/bluetooth/dbus/fake_bluetooth_input_client.h b/device/bluetooth/dbus/fake_bluetooth_input_client.h
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+++ b/device/bluetooth/dbus/fake_bluetooth_input_client.h
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+// 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_DBUS_FAKE_BLUETOOTH_INPUT_CLIENT_H_
+#define CHROMEOS_DBUS_FAKE_BLUETOOTH_INPUT_CLIENT_H_
+
+#include "base/callback.h"
+#include "base/observer_list.h"
+#include "dbus/object_path.h"
+#include "dbus/property.h"
+#include "device/bluetooth/bluetooth_export.h"
+#include "device/bluetooth/dbus/bluetooth_input_client.h"
+
+namespace bluez {
+
+// FakeBluetoothInputClient simulates the behavior of the Bluetooth Daemon
+// input device objects and is used both in test cases in place of a mock and on
+// the Linux desktop.
+class DEVICE_BLUETOOTH_EXPORT FakeBluetoothInputClient
+    : public BluetoothInputClient {
+ public:
+  struct Properties : public BluetoothInputClient::Properties {
+    explicit Properties(const PropertyChangedCallback& callback);
+    ~Properties() override;
+
+    // dbus::PropertySet override
+    void Get(dbus::PropertyBase* property,
+             dbus::PropertySet::GetCallback callback) override;
+    void GetAll() override;
+    void Set(dbus::PropertyBase* property,
+             dbus::PropertySet::SetCallback callback) override;
+  };
+
+  FakeBluetoothInputClient();
+  ~FakeBluetoothInputClient() override;
+
+  // BluetoothInputClient overrides
+  void Init(dbus::Bus* bus) override;
+  void AddObserver(Observer* observer) override;
+  void RemoveObserver(Observer* observer) override;
+  Properties* GetProperties(const dbus::ObjectPath& object_path) override;
+
+  // Simulate device addition/removal
+  void AddInputDevice(const dbus::ObjectPath& object_path);
+  void RemoveInputDevice(const dbus::ObjectPath& object_path);
+
+ private:
+  // Property callback passed when we create Properties* structures.
+  void OnPropertyChanged(const dbus::ObjectPath& object_path,
+                         const std::string& property_name);
+
+  // Static properties we return.
+  typedef std::map<const dbus::ObjectPath, Properties*> PropertiesMap;
+  PropertiesMap properties_map_;
+
+  // List of observers interested in event notifications from us.
+  base::ObserverList<Observer> observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeBluetoothInputClient);
+};
+
+}  // namespace bluez
+
+#endif  // CHROMEOS_DBUS_FAKE_BLUETOOTH_INPUT_CLIENT_H_