chromeos: Remove unused NFC D-Bus client library

chromeos/dbus/nfc_record_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_NFC_RECORD_CLIENT_H_
-#define CHROMEOS_DBUS_NFC_RECORD_CLIENT_H_
-
-#include <stdint.h>
-
-#include <string>
-
-#include "base/macros.h"
-#include "chromeos/chromeos_export.h"
-#include "chromeos/dbus/dbus_client.h"
-#include "chromeos/dbus/nfc_property_set.h"
-#include "dbus/object_path.h"
-#include "dbus/object_proxy.h"
-#include "dbus/property.h"
-
-namespace chromeos {
-
-class NfcDeviceClient;
-class NfcTagClient;
-
-// NfcRecordClient is used to communicate with objects representing NDEF
-// records that are stored in remote NFC tags and devices.
-class CHROMEOS_EXPORT NfcRecordClient : public DBusClient {
- public:
-  // Structure of properties associated with an NFC record.
-  struct Properties : public NfcPropertySet {
-    // The NDEF record type.  Possible values are "SmartPoster", "Text", "URI",
-    // "HandoverRequest", "HandoverSelect", "HandoverCarrier". Read-only.
-    dbus::Property<std::string> type;
-
-    // The character encoding. Possible values are "UTF-8" or "UTF-16".
-    // This property is only valid for Text and SmartPoster's title records.
-    // Read-only.
-    dbus::Property<std::string> encoding;
-
-    // The ISO/IANA language code (For example "en" or "jp"). This property is
-    // only valid for Text and SmartPoster's title records.
-    dbus::Property<std::string> language;
-
-    // The human readable representation of a text or title record.
-    // This property is only valid for Text and SmartPoster's title records.
-    // Read-only.
-    dbus::Property<std::string> representation;
-
-    // The record URI (for example https://nfc-forum.org). This is the complete
-    // URI, including the scheme and the resource. This property is only valid
-    // for SmartPoster's URI type records.
-    // Read-only.
-    dbus::Property<std::string> uri;
-
-    // The URI object MIME type. This is a description of the MIME type of the
-    // object the URI points at. This is not a mandatory field and is only
-    // valid for SmartPosters carrying a URI record.
-    // Read-only.
-    dbus::Property<std::string> mime_type;
-
-    // The URI object size. This is the size of the object the URI points at.
-    // It should be used by applications to decide if they can afford to fetch
-    // the object or not. This is not a mandatory field and is only valid for
-    // Smart Posters carrying a URI record.
-    // Read-only.
-    dbus::Property<uint32_t> size;
-
-    // The suggested course of action. This one is only valid for Smart Posters
-    // and is a suggestion only. It can be ignored, and the possible values are
-    // "Do" (for example launch the browser), "Save" (for example save the URI
-    // in the bookmarks folder), or "Edit" (for example open the URI in an URI
-    // editor for the user to modify it).
-    dbus::Property<std::string> action;
-
-    Properties(dbus::ObjectProxy* object_proxy,
-               const PropertyChangedCallback& callback);
-    ~Properties() override;
-  };
-
-  // Interface for observing changes from a remote NFC NDEF record.
-  class Observer {
-   public:
-    virtual ~Observer() {}
-
-    // Called when a remote NFC record with the object path |object_path| is
-    // added to the set of known records.
-    virtual void RecordAdded(const dbus::ObjectPath& object_path) {}
-
-    // Called when a remote NFC record with the object path |object_path| is
-    // removed from the set of known records.
-    virtual void RecordRemoved(const dbus::ObjectPath& object_path) {}
-
-    // Called when the record property with the name |property_name| on record
-    // with object path |object_path| has acquired a new value.
-    virtual void RecordPropertyChanged(const dbus::ObjectPath& object_path,
-                                       const std::string& property_name) {}
-
-    // Called when all properties for the record with object path |object_path|
-    // have been received. This method will be called after
-    // Observer::RecordPropertyChanged has been called for all properties that
-    // were received through the initial property fetch that is done when the
-    // object proxy is first created or after a call to
-    // dbus::PropertySet::GetAll Observers can use this method to be notified
-    // when all existing properties of a record are available for use.
-    virtual void RecordPropertiesReceived(
-        const dbus::ObjectPath& object_path) {}
-  };
-
-  ~NfcRecordClient() override;
-
-  // Adds and removes observers for events on all remote NFC records. Check the
-  // |object_path| parameter of observer methods to determine which record is
-  // issuing the event.
-  virtual void AddObserver(Observer* observer) = 0;
-  virtual void RemoveObserver(Observer* observer) = 0;
-
-  // Returns the list of record object paths associated with the given device
-  // identified by the D-Bus object path |device_path|.
-  virtual std::vector<dbus::ObjectPath> GetRecordsForDevice(
-      const dbus::ObjectPath& device_path) = 0;
-
-  // Returns the list of record object paths associated with the given tag
-  // identified by the D-Bus object path |tag_path|.
-  virtual std::vector<dbus::ObjectPath> GetRecordsForTag(
-      const dbus::ObjectPath& tag_path) = 0;
-
-  // Obtain the properties for the NFC record with object path |object_path|;
-  // any values should be copied if needed.
-  virtual Properties* GetProperties(const dbus::ObjectPath& object_path) = 0;
-
-  // Creates the instance.
-  static NfcRecordClient* Create(NfcDeviceClient* device_client,
-                                 NfcTagClient* tag_client);
-
- protected:
-  friend class NfcClientTest;
-
-  NfcRecordClient();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(NfcRecordClient);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROMEOS_DBUS_NFC_RECORD_CLIENT_H_