chromeos: Remove unused NFC D-Bus client library

device/nfc/nfc_tag_chromeos.cc

-// Copyright 2014 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 "device/nfc/nfc_tag_chromeos.h"
-
-#include "chromeos/dbus/dbus_thread_manager.h"
-#include "device/nfc/nfc_tag_technology_chromeos.h"
-#include "third_party/cros_system_api/dbus/service_constants.h"
-
-using device::NfcTag;
-using device::NfcTagTechnology;
-using device::NfcNdefTagTechnology;
-
-namespace chromeos {
-
-namespace {
-
-// Converts an NFC tag type value returned by neard to a NfcTag::TagType enum
-// value.
-NfcTag::TagType DBusTypePropertyToTagType(const std::string& type) {
-  if (type == nfc_tag::kTagType1)
-    return NfcTag::kTagType1;
-  if (type == nfc_tag::kTagType2)
-    return NfcTag::kTagType2;
-  if (type == nfc_tag::kTagType3)
-    return NfcTag::kTagType3;
-  if (type == nfc_tag::kTagType4)
-    return NfcTag::kTagType4;
-  return NfcTag::kTagTypeUnknown;
-}
-
-// Converts an NFC tag protocol value returned by neard to a NfcTag::Protocol
-// enum value.
-NfcTag::Protocol DBusProtocolPropertyToTagProtocol(
-    const std::string& protocol) {
-  if (protocol == nfc_common::kProtocolFelica)
-    return NfcTag::kProtocolFelica;
-  if (protocol == nfc_common::kProtocolIsoDep)
-    return NfcTag::kProtocolIsoDep;
-  if (protocol == nfc_common::kProtocolJewel)
-    return NfcTag::kProtocolJewel;
-  if (protocol == nfc_common::kProtocolMifare)
-    return NfcTag::kProtocolMifare;
-  if (protocol == nfc_common::kProtocolNfcDep)
-    return NfcTag::kProtocolNfcDep;
-  return NfcTag::kProtocolUnknown;
-}
-
-}  // namespace
-
-NfcTagChromeOS::NfcTagChromeOS(const dbus::ObjectPath& object_path)
-    : object_path_(object_path),
-      is_ready_(false),
-      ndef_technology_(new NfcNdefTagTechnologyChromeOS(this)) {
-  DBusThreadManager::Get()->GetNfcTagClient()->AddObserver(this);
-}
-
-NfcTagChromeOS::~NfcTagChromeOS() {
-  DBusThreadManager::Get()->GetNfcTagClient()->RemoveObserver(this);
-}
-
-void NfcTagChromeOS::AddObserver(NfcTag::Observer* observer) {
-  observers_.AddObserver(observer);
-}
-
-void NfcTagChromeOS::RemoveObserver(NfcTag::Observer* observer) {
-  observers_.RemoveObserver(observer);
-}
-
-std::string NfcTagChromeOS::GetIdentifier() const {
-  return object_path_.value();
-}
-
-NfcTag::TagType NfcTagChromeOS::GetType() const {
-  DCHECK(object_path_.IsValid());
-  return DBusTypePropertyToTagType(
-      DBusThreadManager::Get()->GetNfcTagClient()->
-          GetProperties(object_path_)->type.value());
-}
-
-bool NfcTagChromeOS::IsReadOnly() const {
-  DCHECK(object_path_.IsValid());
-  return DBusThreadManager::Get()->GetNfcTagClient()->
-      GetProperties(object_path_)->read_only.value();
-}
-
-NfcTag::Protocol NfcTagChromeOS::GetSupportedProtocol() const {
-  DCHECK(object_path_.IsValid());
-  return DBusProtocolPropertyToTagProtocol(
-      DBusThreadManager::Get()->GetNfcTagClient()->
-          GetProperties(object_path_)->protocol.value());
-}
-
-NfcTagTechnology::TechnologyTypeMask
-NfcTagChromeOS::GetSupportedTechnologies() const {
-  // Determine supported technologies based on the tag's protocol and
-  // type.
-  NfcTag::TagType type = GetType();
-  NfcTag::Protocol protocol = GetSupportedProtocol();
-  if (type == NfcTag::kTagTypeUnknown || protocol == kProtocolUnknown) {
-    VLOG(1) << "Tag type and protocol unknown.";
-    return 0;
-  }
-
-  NfcTagTechnology::TechnologyTypeMask technologies = 0;
-  technologies |= NfcTagTechnology::kTechnologyTypeNdef;
-  if (type == NfcTag::kTagType3) {
-    DCHECK(protocol == NfcTag::kProtocolFelica);
-    return technologies | NfcTagTechnology::kTechnologyTypeNfcF;
-  }
-
-  if (protocol == NfcTag::kProtocolIsoDep) {
-    DCHECK(type == NfcTag::kTagType4);
-    technologies |= NfcTagTechnology::kTechnologyTypeIsoDep;
-    // TODO(armansito): Neard doesn't provide enough information to determine
-    // if the underlying wave-form is type A or type B. For now, report
-    // neither.
-    return technologies;
-  }
-
-  return technologies | NfcTagTechnology::kTechnologyTypeNfcA;
-}
-
-bool NfcTagChromeOS::IsReady() const {
-  return is_ready_;
-}
-
-NfcNdefTagTechnology* NfcTagChromeOS::GetNdefTagTechnology() {
-  return ndef_technology_.get();
-}
-
-void NfcTagChromeOS::TagPropertyChanged(const dbus::ObjectPath& object_path,
-                                        const std::string& property_name) {
-  if (object_path != object_path_)
-    return;
-
-  NfcTagClient::Properties* properties =
-    DBusThreadManager::Get()->GetNfcTagClient()->GetProperties(object_path_);
-  DCHECK(properties);
-
-  if (property_name == properties->type.name()) {
-    FOR_EACH_OBSERVER(NfcTag::Observer, observers_,
-                      TagTypeChanged(this, GetType()));
-  } else if (property_name == properties->read_only.name()) {
-    FOR_EACH_OBSERVER(NfcTag::Observer, observers_,
-                      TagWritePermissionChanged(this, IsReadOnly()));
-  } else if (property_name == properties->protocol.name()) {
-    FOR_EACH_OBSERVER(
-        NfcTag::Observer, observers_,
-        TagSupportedProtocolChanged(this, GetSupportedProtocol()));
-  }
-}
-
-void NfcTagChromeOS::TagPropertiesReceived(
-    const dbus::ObjectPath& object_path) {
-  if (is_ready_ || object_path != object_path_)
-    return;
-
-  is_ready_ = true;
-  FOR_EACH_OBSERVER(NfcTag::Observer, observers_, TagReady(this));
-}
-
-}  // namespace chromeos