chromeos: Remove unused NFC D-Bus client library

chromeos/dbus/fake_nfc_device_client.h

-// Copyright 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_NFC_DEVICE_CLIENT_H_
-#define CHROMEOS_DBUS_FAKE_NFC_DEVICE_CLIENT_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "base/observer_list.h"
-#include "chromeos/chromeos_export.h"
-#include "chromeos/dbus/nfc_client_helpers.h"
-#include "chromeos/dbus/nfc_device_client.h"
-
-namespace chromeos {
-
-// FakeNfcDeviceClient simulates the behavior of the NFC device objects
-// and is used both in test cases in place of a mock and on the Linux desktop.
-class CHROMEOS_EXPORT FakeNfcDeviceClient : public NfcDeviceClient {
- public:
-  // The fake device object path.
-  static const char kDevicePath[];
-
-  // The default simulation timeout interval.
-  static const int kDefaultSimulationTimeoutMilliseconds;
-
-  // Properties structure that provides fake behavior for D-Bus calls.
-  struct Properties : public NfcDeviceClient::Properties {
-    explicit Properties(const PropertyChangedCallback& callback);
-    ~Properties() override;
-
-    // dbus::PropertySet overrides.
-    void Get(dbus::PropertyBase* property,
-             dbus::PropertySet::GetCallback callback) override;
-    void GetAll() override;
-    void Set(dbus::PropertyBase* property,
-             dbus::PropertySet::SetCallback callback) override;
-  };
-
-  FakeNfcDeviceClient();
-  ~FakeNfcDeviceClient() override;
-
-  // NfcDeviceClient overrides.
-  void Init(dbus::Bus* bus) override;
-  void AddObserver(Observer* observer) override;
-  void RemoveObserver(Observer* observer) override;
-  std::vector<dbus::ObjectPath> GetDevicesForAdapter(
-      const dbus::ObjectPath& adapter_path) override;
-  Properties* GetProperties(const dbus::ObjectPath& object_path) override;
-  void Push(const dbus::ObjectPath& object_path,
-            const base::DictionaryValue& attributes,
-            const base::Closure& callback,
-            const nfc_client_helpers::ErrorCallback& error_callback) override;
-
-  // Simulates the appearance of a device. The fake device will show up after
-  // exactly |visibility_delay| milliseconds, and will simulate pushing a single
-  // record to the local fake adapter after exactly |record_push_delay|
-  // milliseconds after the the device appears. |visibility_delay| must have a
-  // non-negative value. |record_push_delay| CAN be negative: if it has a
-  // negative value, the record push step will not be simulated. The
-  // side-effects of this method occur asynchronously, i.e. even with arguments
-  // with value 0, the pairing won't take place until after this method has
-  // returned.
-  void BeginPairingSimulation(int visibility_delay, int record_push_delay);
-
-  // If device pairing was previously started, simulates the disappearance of
-  // the device. Any device objects presented and their records will disappear
-  // after this call. Delayed events that were set up by a previous call to
-  // BeginPairing() will be canceled through a call to EndPairing().
-  void EndPairingSimulation();
-
-  // Enables or disables automatic unpairing. When enabled, a pairing
-  // simulation will end |simulation_timeout| milliseconds after records have
-  // been exposed (or after the tag has been exposed, if |record_push_delay| was
-  // given as a negative value to BeginPairingSimulation) This is enabled by
-  // default and the timeout is set to |kDefaultSimulationTimeoutMilliseconds|.
-  void EnableSimulationTimeout(int simulation_timeout);
-  void DisableSimulationTimeout();
-
-  // Tells the FakeNfcDeviceClient to add the records in |record_paths| to its
-  // list of records exposed for |kDevicePath|. This method will immediately
-  // assign the records and trigger a property changed signal, only if the
-  // device is currently visible.
-  void SetRecords(const std::vector<dbus::ObjectPath>& record_paths);
-
-  // Tells the FakeNfcDeviceClient to clear the list of records exposed for
-  // |kDevicePath|. This method takes effect immediately and triggers a
-  // property changed signal.
-  void ClearRecords();
-
-  // Returns true, if a pairing simulation is currently going on.
-  bool device_visible() const { return device_visible_; }
-
- private:
-  // Property changed callback passed when we create Properties* structures.
-  void OnPropertyChanged(const dbus::ObjectPath& object_path,
-                         const std::string& property_name);
-
-  // Makes the fake device visible (if it is not already so) and simulates a
-  // record push after |record_push_delay| seconds. Posted by BeginPairing().
-  void MakeDeviceVisible(int record_push_delay);
-
-  // Makes the fake records visible. Called by MakeDeviceVisible().
-  void MakeRecordsVisible();
-
-  // Called when the simulation timeout expires.
-  void HandleSimulationTimeout();
-
-  // List of observers interested in event notifications from us.
-  base::ObserverList<Observer> observers_;
-
-  // Fake properties that are returned for the emulated device.
-  std::unique_ptr<Properties> properties_;
-
-  // If true, a pairing simulation was started using BeginPairing() and no call
-  // to EndPairing() has been made.
-  bool pairing_started_;
-
-  // If true, observers have been notified that a device has been created and
-  // the device properties are accessible.
-  bool device_visible_;
-
-  // If non-negative, the device will disappear this many milliseconds after
-  // its records have been exposed.
-  int simulation_timeout_;
-
-  DISALLOW_COPY_AND_ASSIGN(FakeNfcDeviceClient);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROMEOS_DBUS_FAKE_NFC_DEVICE_CLIENT_H_