chromeos: Remove unused NFC D-Bus client library

chromeos/dbus/nfc_device_client.cc

Index: chromeos/dbus/nfc_device_client.cc
diff --git a/chromeos/dbus/nfc_device_client.cc b/chromeos/dbus/nfc_device_client.cc
deleted file mode 100644
index 1e84048f66c0d6e2d69e2b5e3d99108a8d55ee39..0000000000000000000000000000000000000000
--- a/chromeos/dbus/nfc_device_client.cc
+++ /dev/null
@@ -1,237 +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_device_client.h"
-
-#include "base/bind.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "base/observer_list.h"
-#include "base/strings/stringprintf.h"
-#include "chromeos/dbus/nfc_adapter_client.h"
-#include "dbus/bus.h"
-#include "dbus/message.h"
-#include "dbus/values_util.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 {
-
-NfcDeviceClient::Properties::Properties(
-    dbus::ObjectProxy* object_proxy,
-    const PropertyChangedCallback& callback)
-    : NfcPropertySet(object_proxy,
-                     nfc_device::kNfcDeviceInterface,
-                     callback) {
-  RegisterProperty(nfc_device::kRecordsProperty, &records);
-}
-
-NfcDeviceClient::Properties::~Properties() {
-}
-
-// The NfcDeviceClient implementation used in production.
-class NfcDeviceClientImpl : public NfcDeviceClient,
-                            public NfcAdapterClient::Observer,
-                            public DBusObjectMap::Delegate {
- public:
-  explicit NfcDeviceClientImpl(NfcAdapterClient* adapter_client)
-      : bus_(NULL),
-        adapter_client_(adapter_client),
-        weak_ptr_factory_(this) {
-    DCHECK(adapter_client);
-  }
-
-  ~NfcDeviceClientImpl() override {
-    DCHECK(adapter_client_);
-    adapter_client_->RemoveObserver(this);
-  }
-
-  // NfcDeviceClient override.
-  void AddObserver(NfcDeviceClient::Observer* observer) override {
-    DCHECK(observer);
-    observers_.AddObserver(observer);
-  }
-
-  // NfcDeviceClient override.
-  void RemoveObserver(NfcDeviceClient::Observer* observer) override {
-    DCHECK(observer);
-    observers_.RemoveObserver(observer);
-  }
-
-  // NfcDeviceClient override.
-  std::vector<dbus::ObjectPath> GetDevicesForAdapter(
-      const dbus::ObjectPath& adapter_path) override {
-    DBusObjectMap* object_map =
-        adapters_to_object_maps_.GetObjectMap(adapter_path);
-    if (!object_map)
-      return std::vector<dbus::ObjectPath>();
-    return object_map->GetObjectPaths();
-  }
-
-  // NfcDeviceClient override.
-  Properties* GetProperties(const dbus::ObjectPath& object_path) override {
-    return static_cast<Properties*>(
-        adapters_to_object_maps_.FindObjectProperties(object_path));
-  }
-
-  // NfcDeviceClient override.
-  void Push(const dbus::ObjectPath& object_path,
-            const base::DictionaryValue& attributes,
-            const base::Closure& callback,
-            const nfc_client_helpers::ErrorCallback& error_callback) override {
-    dbus::ObjectProxy* object_proxy =
-        adapters_to_object_maps_.FindObjectProxy(object_path);
-    if (!object_proxy) {
-      std::string error_message =
-          base::StringPrintf(
-              "NFC device with object path \"%s\" does not exist.",
-              object_path.value().c_str());
-      LOG(ERROR) << error_message;
-      error_callback.Run(nfc_client_helpers::kUnknownObjectError,
-                         error_message);
-      return;
-    }
-
-    // |attributes| should not be empty.
-    if (attributes.empty()) {
-      std::string error_message =
-          "Cannot push data to device with empty arguments.";
-      LOG(ERROR) << error_message;
-      error_callback.Run(nfc_error::kInvalidArguments, error_message);
-      return;
-    }
-
-    // Create the arguments.
-    dbus::MethodCall method_call(nfc_device::kNfcDeviceInterface,
-                                 nfc_device::kPush);
-    dbus::MessageWriter writer(&method_call);
-    dbus::AppendValueData(&writer, attributes);
-
-    object_proxy->CallMethodWithErrorCallback(
-        &method_call,
-        dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
-        base::Bind(&nfc_client_helpers::OnSuccess, callback),
-        base::Bind(&nfc_client_helpers::OnError, error_callback));
-  }
-
- protected:
-  // DBusClient override.
-  void Init(dbus::Bus* bus) override {
-    VLOG(1) << "Creating NfcDeviceClientImpl";
-    DCHECK(bus);
-    bus_ = bus;
-    DCHECK(adapter_client_);
-    adapter_client_->AddObserver(this);
-  }
-
- private:
-  // NfcAdapterClient::Observer override.
-  void AdapterAdded(const dbus::ObjectPath& object_path) override {
-    VLOG(1) << "Adapter added. Creating map for device proxies belonging to "
-            << "adapter: " << object_path.value();
-    adapters_to_object_maps_.CreateObjectMap(
-        object_path, nfc_device::kNfcDeviceServiceName, this, bus_);
-  }
-
-  // NfcAdapterClient::Observer override.
-  void AdapterRemoved(const dbus::ObjectPath& object_path) override {
-    // Neard doesn't send out property changed signals for the devices that
-    // are removed when the adapter they belong to is removed. Clean up the
-    // object proxies for devices that are managed by the removed adapter.
-    // Note: DBusObjectMap guarantees that the Properties structure for the
-    // removed adapter will be valid before this method returns.
-    VLOG(1) << "Adapter removed. Cleaning up device proxies belonging to "
-            << "adapter: " << object_path.value();
-    adapters_to_object_maps_.RemoveObjectMap(object_path);
-  }
-
-  // NfcAdapterClient::Observer override.
-  void AdapterPropertyChanged(const dbus::ObjectPath& object_path,
-                              const std::string& property_name) override {
-    DCHECK(adapter_client_);
-    NfcAdapterClient::Properties *adapter_properties =
-        adapter_client_->GetProperties(object_path);
-    DCHECK(adapter_properties);
-
-    // Ignore changes to properties other than "Devices".
-    if (property_name != adapter_properties->devices.name())
-      return;
-
-    // Update the known devices.
-    VLOG(1) << "NFC devices changed.";
-    const std::vector<dbus::ObjectPath>& received_devices =
-        adapter_properties->devices.value();
-    DBusObjectMap* object_map =
-        adapters_to_object_maps_.GetObjectMap(object_path);
-    DCHECK(object_map);
-    object_map->UpdateObjects(received_devices);
-  }
-
-  // nfc_client_helpers::DBusObjectMap::Delegate override.
-  NfcPropertySet* CreateProperties(dbus::ObjectProxy* object_proxy) override {
-    return new Properties(
-        object_proxy,
-        base::Bind(&NfcDeviceClientImpl::OnPropertyChanged,
-                   weak_ptr_factory_.GetWeakPtr(),
-                   object_proxy->object_path()));
-  }
-
-  // nfc_client_helpers::DBusObjectMap::Delegate override.
-  void ObjectAdded(const dbus::ObjectPath& object_path) override {
-    FOR_EACH_OBSERVER(NfcDeviceClient::Observer, observers_,
-                      DeviceAdded(object_path));
-  }
-
-  void ObjectRemoved(const dbus::ObjectPath& object_path) override {
-    FOR_EACH_OBSERVER(NfcDeviceClient::Observer, observers_,
-                      DeviceRemoved(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) << "Device property changed; Path: " << object_path.value()
-            << " Property: " << property_name;
-    FOR_EACH_OBSERVER(NfcDeviceClient::Observer, observers_,
-                      DevicePropertyChanged(object_path, property_name));
-  }
-
-  // We maintain a pointer to the bus to be able to request proxies for
-  // new NFC devices that appear.
-  dbus::Bus* bus_;
-
-  // List of observers interested in event notifications.
-  base::ObserverList<NfcDeviceClient::Observer> observers_;
-
-  // Mapping from object paths to object proxies and properties structures that
-  // were already created by us. This stucture stores a different DBusObjectMap
-  // for each known NFC adapter object path.
-  ObjectProxyTree adapters_to_object_maps_;
-
-  // The adapter client that we listen to events notifications from.
-  NfcAdapterClient* adapter_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<NfcDeviceClientImpl> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(NfcDeviceClientImpl);
-};
-
-NfcDeviceClient::NfcDeviceClient() {
-}
-
-NfcDeviceClient::~NfcDeviceClient() {
-}
-
-NfcDeviceClient* NfcDeviceClient::Create(NfcAdapterClient* adapter_client) {
-  return new NfcDeviceClientImpl(adapter_client);
-}
-
-}  // namespace chromeos