chromeos: Remove unused NFC D-Bus client library

chromeos/dbus/nfc_record_client.cc

Index: chromeos/dbus/nfc_record_client.cc
diff --git a/chromeos/dbus/nfc_record_client.cc b/chromeos/dbus/nfc_record_client.cc
deleted file mode 100644
index b8295168dd75f8dcbe744d9cacbb6d3f30350da1..0000000000000000000000000000000000000000
--- a/chromeos/dbus/nfc_record_client.cc
+++ /dev/null
@@ -1,279 +0,0 @@
-// 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.
-
-#include "chromeos/dbus/nfc_record_client.h"
-
-#include "base/bind.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "base/observer_list.h"
-#include "chromeos/dbus/nfc_device_client.h"
-#include "chromeos/dbus/nfc_tag_client.h"
-#include "dbus/bus.h"
-#include "third_party/cros_system_api/dbus/service_constants.h"
-
-using chromeos::nfc_client_helpers::DBusObjectMap;
-using chromeos::nfc_client_helpers::ObjectProxyTree;
-
-namespace chromeos {
-
-NfcRecordClient::Properties::Properties(
-    dbus::ObjectProxy* object_proxy,
-    const PropertyChangedCallback& callback)
-    : NfcPropertySet(object_proxy,
-                     nfc_record::kNfcRecordInterface,
-                     callback) {
-  RegisterProperty(nfc_record::kTypeProperty, &type);
-  RegisterProperty(nfc_record::kLanguageProperty, &language);
-  RegisterProperty(nfc_record::kEncodingProperty, &encoding);
-  RegisterProperty(nfc_record::kRepresentationProperty, &representation);
-  RegisterProperty(nfc_record::kUriProperty, &uri);
-  RegisterProperty(nfc_record::kMimeTypeProperty, &mime_type);
-  RegisterProperty(nfc_record::kSizeProperty, &size);
-  RegisterProperty(nfc_record::kActionProperty, &action);
-}
-
-NfcRecordClient::Properties::~Properties() {
-}
-
-// The NfcRecordClient implementation used in production.
-class NfcRecordClientImpl : public NfcRecordClient,
-                            public NfcDeviceClient::Observer,
-                            public NfcTagClient::Observer,
-                            public DBusObjectMap::Delegate {
- public:
-  explicit NfcRecordClientImpl(NfcDeviceClient* device_client,
-                               NfcTagClient* tag_client)
-      : bus_(NULL),
-        device_client_(device_client),
-        tag_client_(tag_client),
-        weak_ptr_factory_(this) {
-    DCHECK(device_client);
-    DCHECK(tag_client);
-  }
-
-  ~NfcRecordClientImpl() override {
-    DCHECK(device_client_);
-    DCHECK(tag_client_);
-    device_client_->RemoveObserver(this);
-    tag_client_->RemoveObserver(this);
-  }
-
-  // NfcRecordClient override.
-  void AddObserver(NfcRecordClient::Observer* observer) override {
-    DCHECK(observer);
-    observers_.AddObserver(observer);
-  }
-
-  // NfcRecordClient override.
-  void RemoveObserver(NfcRecordClient::Observer* observer) override {
-    DCHECK(observer);
-    observers_.RemoveObserver(observer);
-  }
-
-  std::vector<dbus::ObjectPath> GetRecordsForDevice(
-      const dbus::ObjectPath& device_path) override {
-    DBusObjectMap* object_map =
-        devices_and_tags_to_object_maps_.GetObjectMap(device_path);
-    if (!object_map)
-      return std::vector<dbus::ObjectPath>();
-    return object_map->GetObjectPaths();
-  }
-
-  std::vector<dbus::ObjectPath> GetRecordsForTag(
-      const dbus::ObjectPath& tag_path) override {
-    return GetRecordsForDevice(tag_path);
-  }
-
-  // NfcRecordClient override.
-  Properties* GetProperties(const dbus::ObjectPath& object_path) override {
-    return static_cast<Properties*>(
-        devices_and_tags_to_object_maps_.FindObjectProperties(object_path));
-  }
-
- protected:
-  // DBusClient override.
-  void Init(dbus::Bus* bus) override {
-    VLOG(1) << "Creating NfcRecordClient impl";
-    DCHECK(bus);
-    bus_ = bus;
-    DCHECK(device_client_);
-    DCHECK(tag_client_);
-    device_client_->AddObserver(this);
-    tag_client_->AddObserver(this);
-  }
-
- private:
-  // NfcDeviceClient::Observer override.
-  void DeviceAdded(const dbus::ObjectPath& object_path) override {
-    VLOG(1) << "Device added. Creating map for record proxies belonging to "
-            << "device: " << object_path.value();
-    devices_and_tags_to_object_maps_.CreateObjectMap(
-        object_path, nfc_record::kNfcRecordServiceName, this, bus_);
-  }
-
-  // NfcDeviceClient::Observer override.
-  void DeviceRemoved(const dbus::ObjectPath& object_path) override {
-    // Neard doesn't send out property changed signals for the records that
-    // are removed when the device they belong to is removed. Clean up the
-    // object proxies for records that belong to the removed device.
-    // Note: DBusObjectMap guarantees that the Properties structure for the
-    // removed adapter will be valid before this method returns.
-    VLOG(1) << "Device removed. Cleaning up record proxies belonging to "
-            << "device: " << object_path.value();
-    devices_and_tags_to_object_maps_.RemoveObjectMap(object_path);
-  }
-
-  // NfcDeviceClient::Observer override.
-  void DevicePropertyChanged(const dbus::ObjectPath& object_path,
-                             const std::string& property_name) override {
-    // Update the record proxies using records from the device.
-    DCHECK(device_client_);
-    NfcDeviceClient::Properties* device_properties =
-        device_client_->GetProperties(object_path);
-
-    // Ignore changes to properties other than "Records".
-    if (property_name != device_properties->records.name())
-      return;
-
-    // Update known records.
-    VLOG(1) << "NFC records changed.";
-    const std::vector<dbus::ObjectPath>& received_records =
-        device_properties->records.value();
-    DBusObjectMap* object_map =
-        devices_and_tags_to_object_maps_.GetObjectMap(object_path);
-    DCHECK(object_map);
-    object_map->UpdateObjects(received_records);
-  }
-
-  // NfcTagClient::Observer override.
-  void TagAdded(const dbus::ObjectPath& object_path) override {
-    VLOG(1) << "Tag added. Creating map for record proxies belonging to "
-            << "tag: " << object_path.value();
-    devices_and_tags_to_object_maps_.CreateObjectMap(
-        object_path, nfc_record::kNfcRecordServiceName, this, bus_);
-  }
-
-  // NfcTagClient::Observer override.
-  void TagRemoved(const dbus::ObjectPath& object_path) override {
-    // Neard doesn't send out property changed signals for the records that
-    // are removed when the tag they belong to is removed. Clean up the
-    // object proxies for records that belong to the removed tag.
-    // Note: DBusObjectMap guarantees that the Properties structure for the
-    // removed adapter will be valid before this method returns.
-    VLOG(1) << "Tag removed. Cleaning up record proxies belonging to "
-            << "tag: " << object_path.value();
-    devices_and_tags_to_object_maps_.RemoveObjectMap(object_path);
-  }
-
-  // NfcTagClient::Observer override.
-  void TagPropertyChanged(const dbus::ObjectPath& object_path,
-                          const std::string& property_name) override {
-    // Update the record proxies using records from the tag.
-    DCHECK(device_client_);
-    NfcTagClient::Properties* tag_properties =
-        tag_client_->GetProperties(object_path);
-
-    // Ignore changes to properties other than "Records".
-    if (property_name != tag_properties->records.name())
-      return;
-
-    // Update known records.
-    VLOG(1) << "NFC records changed.";
-    const std::vector<dbus::ObjectPath>& received_records =
-        tag_properties->records.value();
-    DBusObjectMap* object_map =
-        devices_and_tags_to_object_maps_.GetObjectMap(object_path);
-    DCHECK(object_map);
-    object_map->UpdateObjects(received_records);
-
-    // When rewriting the record to a tag, neard fires a property changed
-    // signal for the tags "Records" property, without creating a new object
-    // path. Sync the properties of all records here, in case Update objects
-    // doesn't do it.
-    VLOG(1) << "Fetch properties for all records.";
-    object_map->RefreshAllProperties();
-  }
-
-  // nfc_client_helpers::DBusObjectMap::Delegate override.
-  NfcPropertySet* CreateProperties(dbus::ObjectProxy* object_proxy) override {
-    Properties* properties = new Properties(
-        object_proxy,
-        base::Bind(&NfcRecordClientImpl::OnPropertyChanged,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   object_proxy->object_path()));
-    properties->SetAllPropertiesReceivedCallback(
-        base::Bind(&NfcRecordClientImpl::OnPropertiesReceived,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   object_proxy->object_path()));
-    return properties;
-  }
-
-  // nfc_client_helpers::DBusObjectMap::Delegate override.
-  void ObjectAdded(const dbus::ObjectPath& object_path) override {
-    FOR_EACH_OBSERVER(NfcRecordClient::Observer, observers_,
-                      RecordAdded(object_path));
-  }
-
-  // nfc_client_helpers::DBusObjectMap::Delegate override.
-  void ObjectRemoved(const dbus::ObjectPath& object_path) override {
-    FOR_EACH_OBSERVER(NfcRecordClient::Observer, observers_,
-                      RecordRemoved(object_path));
-  }
-
-  // Called by NfcPropertySet when a property value is changed, either by
-  // result of a signal or response to a GetAll() or Get() call.
-  void OnPropertyChanged(const dbus::ObjectPath& object_path,
-                         const std::string& property_name) {
-    VLOG(1) << "Record property changed; Path: " << object_path.value()
-            << " Property: " << property_name;
-    FOR_EACH_OBSERVER(NfcRecordClient::Observer, observers_,
-                      RecordPropertyChanged(object_path, property_name));
-  }
-
-  // Called by NfcPropertySet when all properties have been processed as a
-  // result of a call to GetAll.
-  void OnPropertiesReceived(const dbus::ObjectPath& object_path) {
-    VLOG(1) << "All record properties received; Path: " << object_path.value();
-    FOR_EACH_OBSERVER(NfcRecordClient::Observer, observers_,
-                      RecordPropertiesReceived(object_path));
-  }
-
-  // We maintain a pointer to the bus to be able to request proxies for
-  // new NFC records that appear.
-  dbus::Bus* bus_;
-
-  // List of observers interested in event notifications.
-  base::ObserverList<NfcRecordClient::Observer> observers_;
-
-  // Mapping from object paths to object proxies and properties structures that
-  // were already created by us. Record objects belong to either Tag or Device
-  // objects. This structure stores a different DBusObjectMap for each known
-  // device and tag.
-  ObjectProxyTree devices_and_tags_to_object_maps_;
-
-  // The device and tag clients that we listen to events notifications from.
-  NfcDeviceClient* device_client_;
-  NfcTagClient* tag_client_;
-  // Weak pointer factory for generating 'this' pointers that might live longer
-  // than we do.
-  // Note: This should remain the last member so it'll be destroyed and
-  // invalidate its weak pointers before any other members are destroyed.
-  base::WeakPtrFactory<NfcRecordClientImpl> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(NfcRecordClientImpl);
-};
-
-NfcRecordClient::NfcRecordClient() {
-}
-
-NfcRecordClient::~NfcRecordClient() {
-}
-
-NfcRecordClient* NfcRecordClient::Create(NfcDeviceClient* device_client,
-                                         NfcTagClient* tag_client) {
-  return new NfcRecordClientImpl(device_client, tag_client);
-}
-
-}  // namespace chromeos