Issue #1390 - Get rid of the Presentation API

20 files changed, 0 insertions, 5880 deletions

diff --git a/dom/presentation/provider/AndroidCastDeviceProvider.js b/dom/presentation/provider/AndroidCastDeviceProvider.js
deleted file mode 100644
index cf555f77b..000000000
--- a/dom/presentation/provider/AndroidCastDeviceProvider.js
+++ /dev/null
@@ -1,461 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* jshint esnext:true, globalstrict:true, moz:true, undef:true, unused:true */
-/* globals Components, dump */
-"use strict";
-
-const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
-
-// globals XPCOMUtils
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-// globals Services
-Cu.import("resource://gre/modules/Services.jsm");
-// globals Messaging
-Cu.import("resource://gre/modules/Messaging.jsm");
-
-function log(str) {
-  // dump("-*- AndroidCastDeviceProvider -*-: " + str + "\n");
-}
-
-// Helper function: transfer nsIPresentationChannelDescription to json
-function descriptionToString(aDescription) {
-  let json = {};
-  json.type = aDescription.type;
-  switch(aDescription.type) {
-    case Ci.nsIPresentationChannelDescription.TYPE_TCP:
-      let addresses = aDescription.tcpAddress.QueryInterface(Ci.nsIArray);
-      json.tcpAddress = [];
-      for (let idx = 0; idx < addresses.length; idx++) {
-        let address = addresses.queryElementAt(idx, Ci.nsISupportsCString);
-        json.tcpAddress.push(address.data);
-      }
-      json.tcpPort = aDescription.tcpPort;
-      break;
-    case Ci.nsIPresentationChannelDescription.TYPE_DATACHANNEL:
-      json.dataChannelSDP = aDescription.dataChannelSDP;
-      break;
-  }
-  return JSON.stringify(json);
-}
-
-const TOPIC_ANDROID_CAST_DEVICE_SYNCDEVICE = "AndroidCastDevice:SyncDevice";
-const TOPIC_ANDROID_CAST_DEVICE_ADDED      = "AndroidCastDevice:Added";
-const TOPIC_ANDROID_CAST_DEVICE_REMOVED    = "AndroidCastDevice:Removed";
-const TOPIC_ANDROID_CAST_DEVICE_START      = "AndroidCastDevice:Start";
-const TOPIC_ANDROID_CAST_DEVICE_STOP       = "AndroidCastDevice:Stop";
-const TOPIC_PRESENTATION_VIEW_READY        = "presentation-view-ready";
-
-function LocalControlChannel(aProvider, aDeviceId, aRole) {
-  log("LocalControlChannel - create new LocalControlChannel for : "
-      + aRole);
-  this._provider = aProvider;
-  this._deviceId = aDeviceId;
-  this._role     = aRole;
-}
-
-LocalControlChannel.prototype = {
-  _listener: null,
-  _provider: null,
-  _deviceId: null,
-  _role: null,
-  _isOnTerminating: false,
-  _isOnDisconnecting: false,
-  _pendingConnected: false,
-  _pendingDisconnect: null,
-  _pendingOffer: null,
-  _pendingCandidate: null,
-  /* For the controller, it would be the control channel of the receiver.
-   * For the receiver, it would be the control channel of the controller. */
-  _correspondingControlChannel: null,
-
-  set correspondingControlChannel(aCorrespondingControlChannel) {
-    this._correspondingControlChannel = aCorrespondingControlChannel;
-  },
-
-  get correspondingControlChannel() {
-    return this._correspondingControlChannel;
-  },
-
-  notifyConnected: function LCC_notifyConnected() {
-    this._pendingDisconnect = null;
-
-    if (!this._listener) {
-      this._pendingConnected = true;
-    } else {
-      this._listener.notifyConnected();
-    }
-  },
-
-  onOffer: function LCC_onOffer(aOffer) {
-    if (this._role == Ci.nsIPresentationService.ROLE_CONTROLLER) {
-      log("LocalControlChannel - onOffer of controller should not be called.");
-      return;
-    }
-    if (!this._listener) {
-      this._pendingOffer = aOffer;
-    } else {
-      this._listener.onOffer(aOffer);
-    }
-  },
-
-  onAnswer: function LCC_onAnswer(aAnswer) {
-    if (this._role == Ci.nsIPresentationService.ROLE_RECEIVER) {
-      log("LocalControlChannel - onAnswer of receiver should not be called.");
-      return;
-    }
-    this._listener.onAnswer(aAnswer);
-  },
-
-  notifyIceCandidate: function LCC_notifyIceCandidate(aCandidate) {
-    if (!this._listener) {
-      this._pendingCandidate = aCandidate;
-    } else {
-      this._listener.onIceCandidate(aCandidate);
-    }
-  },
-
-  // nsIPresentationControlChannel
-  get listener() {
-    return this._listener;
-  },
-
-  set listener(aListener) {
-    this._listener = aListener;
-
-    if (!this._listener) {
-      return;
-    }
-
-    if (this._pendingConnected) {
-      this.notifyConnected();
-      this._pendingConnected = false;
-    }
-
-    if (this._pendingOffer) {
-      this.onOffer(this._pendingOffer);
-      this._pendingOffer = null;
-    }
-
-    if (this._pendingCandidate) {
-      this.notifyIceCandidate(this._pendingCandidate);
-      this._pendingCandidate = null;
-    }
-
-    if (this._pendingDisconnect != null) {
-      this.disconnect(this._pendingDisconnect);
-      this._pendingDisconnect = null;
-    }
-  },
-
-  sendOffer: function LCC_sendOffer(aOffer) {
-    if (this._role == Ci.nsIPresentationService.ROLE_RECEIVER) {
-      log("LocalControlChannel - sendOffer of receiver should not be called.");
-      return;
-    }
-    log("LocalControlChannel - sendOffer aOffer=" + descriptionToString(aOffer));
-    this._correspondingControlChannel.onOffer(aOffer);
-  },
-
-  sendAnswer: function LCC_sendAnswer(aAnswer) {
-    if (this._role == Ci.nsIPresentationService.ROLE_CONTROLLER) {
-      log("LocalControlChannel - sendAnswer of controller should not be called.");
-      return;
-    }
-    log("LocalControlChannel - sendAnswer aAnswer=" + descriptionToString(aAnswer));
-    this._correspondingControlChannel.onAnswer(aAnswer);
-  },
-
-  sendIceCandidate: function LCC_sendIceCandidate(aCandidate) {
-    log("LocalControlChannel - sendAnswer aCandidate=" + aCandidate);
-    this._correspondingControlChannel.notifyIceCandidate(aCandidate);
-  },
-
-  launch: function LCC_launch(aPresentationId, aUrl) {
-    log("LocalControlChannel - launch aPresentationId="
-        + aPresentationId + " aUrl=" + aUrl);
-    // Create control channel for receiver directly.
-    let controlChannel = new LocalControlChannel(this._provider,
-                                                 this._deviceId,
-                                                 Ci.nsIPresentationService.ROLE_RECEIVER);
-
-    // Set up the corresponding control channels for both controller and receiver.
-    this._correspondingControlChannel = controlChannel;
-    controlChannel._correspondingControlChannel = this;
-
-    this._provider.onSessionRequest(this._deviceId,
-                                    aUrl,
-                                    aPresentationId,
-                                    controlChannel);
-    controlChannel.notifyConnected();
-  },
-
-  terminate: function LCC_terminate(aPresentationId) {
-    log("LocalControlChannel - terminate aPresentationId="
-        + aPresentationId);
-
-    if (this._isOnTerminating) {
-      return;
-    }
-
-    // Create control channel for corresponding role directly.
-    let correspondingRole = this._role == Ci.nsIPresentationService.ROLE_CONTROLLER
-                          ? Ci.nsIPresentationService.ROLE_RECEIVER
-                          : Ci.nsIPresentationService.ROLE_CONTROLLER;
-    let controlChannel = new LocalControlChannel(this._provider,
-                                                 this._deviceId,
-                                                 correspondingRole);
-    // Prevent the termination recursion.
-    controlChannel._isOnTerminating = true;
-
-    // Set up the corresponding control channels for both controller and receiver.
-    this._correspondingControlChannel = controlChannel;
-    controlChannel._correspondingControlChannel = this;
-
-    this._provider.onTerminateRequest(this._deviceId,
-                                      aPresentationId,
-                                      controlChannel,
-                                      this._role == Ci.nsIPresentationService.ROLE_RECEIVER);
-    controlChannel.notifyConnected();
-  },
-
-  disconnect: function LCC_disconnect(aReason) {
-    log("LocalControlChannel - disconnect aReason=" + aReason);
-
-    if (this._isOnDisconnecting) {
-      return;
-    }
-
-    this._pendingOffer = null;
-    this._pendingCandidate = null;
-    this._pendingConnected = false;
-
-    // this._pendingDisconnect is a nsresult.
-    // If it is null, it means no pending disconnect.
-    // If it is NS_OK, it means this control channel is disconnected normally.
-    // If it is other nsresult value, it means this control channel is
-    // disconnected abnormally.
-
-    // Remote endpoint closes the control channel with abnormal reason.
-    if (aReason == Cr.NS_OK &&
-        this._pendingDisconnect != null &&
-        this._pendingDisconnect != Cr.NS_OK) {
-      aReason = this._pendingDisconnect;
-    }
-
-    if (!this._listener) {
-      this._pendingDisconnect = aReason;
-      return;
-    }
-
-    this._isOnDisconnecting = true;
-    this._correspondingControlChannel.disconnect(aReason);
-    this._listener.notifyDisconnected(aReason);
-  },
-
-  reconnect: function LCC_reconnect(aPresentationId, aUrl) {
-    log("1-UA on Android doesn't support reconnect.");
-    throw Cr.NS_ERROR_FAILURE;
-  },
-
-  classID: Components.ID("{c9be9450-e5c7-4294-a287-376971b017fd}"),
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIPresentationControlChannel]),
-};
-
-function ChromecastRemoteDisplayDevice(aProvider, aId, aName, aRole) {
-  this._provider = aProvider;
-  this._id       = aId;
-  this._name     = aName;
-  this._role     = aRole;
-}
-
-ChromecastRemoteDisplayDevice.prototype = {
-  _id:          null,
-  _name:        null,
-  _role:        null,
-  _provider:    null,
-  _ctrlChannel: null,
-
-  update: function CRDD_update(aName) {
-    this._name = aName || this._name;
-  },
-
-  // nsIPresentationDevice
-  get id() { return this._id; },
-
-  get name() { return this._name; },
-
-  get type() { return "chromecast"; },
-
-  establishControlChannel: function CRDD_establishControlChannel() {
-    this._ctrlChannel = new LocalControlChannel(this._provider,
-                                                this._id,
-                                                this._role);
-
-    if (this._role == Ci.nsIPresentationService.ROLE_CONTROLLER) {
-      // Only connect to Chromecast for controller.
-      // Monitor the receiver being ready.
-      Services.obs.addObserver(this, TOPIC_PRESENTATION_VIEW_READY, true);
-
-      // Launch Chromecast service in Android.
-      Messaging.sendRequestForResult({
-        type: TOPIC_ANDROID_CAST_DEVICE_START,
-        id:   this.id
-      }).then(result => {
-        log("Chromecast is connected.");
-      }).catch(error => {
-        log("Can not connect to Chromecast.");
-        // If Chromecast can not be launched, remove the observer.
-        Services.obs.removeObserver(this, TOPIC_PRESENTATION_VIEW_READY);
-        this._ctrlChannel.disconnect(Cr.NS_ERROR_FAILURE);
-      });
-    } else {
-      // If establishControlChannel called from the receiver, we don't need to
-      // wait the 'presentation-view-ready' event.
-      this._ctrlChannel.notifyConnected();
-    }
-
-    return this._ctrlChannel;
-  },
-
-  disconnect: function CRDD_disconnect() {
-    // Disconnect from Chromecast.
-    Messaging.sendRequestForResult({
-      type: TOPIC_ANDROID_CAST_DEVICE_STOP,
-      id:   this.id
-    });
-  },
-
-  isRequestedUrlSupported: function CRDD_isRequestedUrlSupported(aUrl) {
-    let url = Cc["@mozilla.org/network/io-service;1"]
-                .getService(Ci.nsIIOService)
-                .newURI(aUrl, null, null);
-    return url.scheme == "http" || url.scheme == "https";
-  },
-
-  // nsIPresentationLocalDevice
-  get windowId() { return this._id; },
-
-  // nsIObserver
-  observe: function CRDD_observe(aSubject, aTopic, aData) {
-    if (aTopic == TOPIC_PRESENTATION_VIEW_READY) {
-      log("ChromecastRemoteDisplayDevice - observe: aTopic="
-          + aTopic + " data=" + aData);
-      if (this.windowId === aData) {
-        Services.obs.removeObserver(this, TOPIC_PRESENTATION_VIEW_READY);
-        this._ctrlChannel.notifyConnected();
-      }
-    }
-  },
-
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIPresentationDevice,
-                                         Ci.nsIPresentationLocalDevice,
-                                         Ci.nsISupportsWeakReference,
-                                         Ci.nsIObserver]),
-};
-
-function AndroidCastDeviceProvider() {
-}
-
-AndroidCastDeviceProvider.prototype = {
-  _listener: null,
-  _deviceList: new Map(),
-
-  onSessionRequest: function APDP_onSessionRequest(aDeviceId,
-                                                   aUrl,
-                                                   aPresentationId,
-                                                   aControlChannel) {
-    log("AndroidCastDeviceProvider - onSessionRequest"
-        + " aDeviceId=" + aDeviceId);
-    let device = this._deviceList.get(aDeviceId);
-    let receiverDevice = new ChromecastRemoteDisplayDevice(this,
-                                                           device.id,
-                                                           device.name,
-                                                           Ci.nsIPresentationService.ROLE_RECEIVER);
-    this._listener.onSessionRequest(receiverDevice,
-                                    aUrl,
-                                    aPresentationId,
-                                    aControlChannel);
-  },
-
-  onTerminateRequest: function APDP_onTerminateRequest(aDeviceId,
-                                                       aPresentationId,
-                                                       aControlChannel,
-                                                       aIsFromReceiver) {
-    log("AndroidCastDeviceProvider - onTerminateRequest"
-        + " aDeviceId=" + aDeviceId
-        + " aPresentationId=" + aPresentationId
-        + " aIsFromReceiver=" + aIsFromReceiver);
-    let device = this._deviceList.get(aDeviceId);
-    this._listener.onTerminateRequest(device,
-                                      aPresentationId,
-                                      aControlChannel,
-                                      aIsFromReceiver);
-  },
-
-  // nsIPresentationDeviceProvider
-  set listener(aListener) {
-    this._listener = aListener;
-
-    // When unload this provider.
-    if (!this._listener) {
-      // remove observer
-      Services.obs.removeObserver(this, TOPIC_ANDROID_CAST_DEVICE_ADDED);
-      Services.obs.removeObserver(this, TOPIC_ANDROID_CAST_DEVICE_REMOVED);
-      return;
-    }
-
-    // Sync all device already found by Android.
-    Services.obs.notifyObservers(null, TOPIC_ANDROID_CAST_DEVICE_SYNCDEVICE, "");
-    // Observer registration
-    Services.obs.addObserver(this, TOPIC_ANDROID_CAST_DEVICE_ADDED, false);
-    Services.obs.addObserver(this, TOPIC_ANDROID_CAST_DEVICE_REMOVED, false);
-  },
-
-  get listener() {
-    return this._listener;
-  },
-
-  forceDiscovery: function APDP_forceDiscovery() {
-    // There is no API to do force discovery in Android SDK.
-  },
-
-  // nsIObserver
-  observe: function APDP_observe(aSubject, aTopic, aData) {
-    switch (aTopic) {
-      case TOPIC_ANDROID_CAST_DEVICE_ADDED: {
-        let deviceInfo = JSON.parse(aData);
-        let deviceId   = deviceInfo.uuid;
-
-        if (!this._deviceList.has(deviceId)) {
-          let device = new ChromecastRemoteDisplayDevice(this,
-                                                         deviceInfo.uuid,
-                                                         deviceInfo.friendlyName,
-                                                         Ci.nsIPresentationService.ROLE_CONTROLLER);
-          this._deviceList.set(device.id, device);
-          this._listener.addDevice(device);
-        } else {
-          let device = this._deviceList.get(deviceId);
-          device.update(deviceInfo.friendlyName);
-          this._listener.updateDevice(device);
-        }
-        break;
-      }
-      case TOPIC_ANDROID_CAST_DEVICE_REMOVED: {
-        let deviceId = aData;
-        let device   = this._deviceList.get(deviceId);
-        this._listener.removeDevice(device);
-        this._deviceList.delete(deviceId);
-        break;
-      }
-    }
-  },
-
-  classID: Components.ID("{7394f24c-dbc3-48c8-8a47-cd10169b7c6b}"),
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
-                                         Ci.nsIPresentationDeviceProvider]),
-};
-
-this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AndroidCastDeviceProvider]);
diff --git a/dom/presentation/provider/AndroidCastDeviceProvider.manifest b/dom/presentation/provider/AndroidCastDeviceProvider.manifest
deleted file mode 100644
index db2aa101b..000000000
--- a/dom/presentation/provider/AndroidCastDeviceProvider.manifest
+++ /dev/null
@@ -1,4 +0,0 @@
-# AndroidCastDeviceProvider.js
-component {7394f24c-dbc3-48c8-8a47-cd10169b7c6b} AndroidCastDeviceProvider.js
-contract @mozilla.org/presentation-device/android-cast-device-provider;1 {7394f24c-dbc3-48c8-8a47-cd10169b7c6b}
-category presentation-device-provider AndroidCastDeviceProvider @mozilla.org/presentation-device/android-cast-device-provider;1
diff --git a/dom/presentation/provider/BuiltinProviders.manifest b/dom/presentation/provider/BuiltinProviders.manifest
deleted file mode 100644
index 0ba7bcaa7..000000000
--- a/dom/presentation/provider/BuiltinProviders.manifest
+++ /dev/null
@@ -1,2 +0,0 @@
-component {f4079b8b-ede5-4b90-a112-5b415a931deb} PresentationControlService.js
-contract @mozilla.org/presentation/control-service;1 {f4079b8b-ede5-4b90-a112-5b415a931deb}
diff --git a/dom/presentation/provider/ControllerStateMachine.jsm b/dom/presentation/provider/ControllerStateMachine.jsm
deleted file mode 100644
index b568a8e9a..000000000
--- a/dom/presentation/provider/ControllerStateMachine.jsm
+++ /dev/null
@@ -1,240 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* jshint esnext:true, globalstrict:true, moz:true, undef:true, unused:true */
-/* globals Components, dump */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = ["ControllerStateMachine"]; // jshint ignore:line
-
-const { utils: Cu } = Components;
-
-/* globals State, CommandType */
-Cu.import("resource://gre/modules/presentation/StateMachineHelper.jsm");
-
-const DEBUG = false;
-function debug(str) {
-  dump("-*- ControllerStateMachine: " + str + "\n");
-}
-
-var handlers = [
-  function _initHandler(stateMachine, command) {
-    // shouldn't receive any command at init state.
-    DEBUG && debug("unexpected command: " + JSON.stringify(command)); // jshint ignore:line
-  },
-  function _connectingHandler(stateMachine, command) {
-    switch (command.type) {
-      case CommandType.CONNECT_ACK:
-        stateMachine.state = State.CONNECTED;
-        stateMachine._notifyDeviceConnected();
-        break;
-      case CommandType.DISCONNECT:
-        stateMachine.state = State.CLOSED;
-        stateMachine._notifyDisconnected(command.reason);
-        break;
-      default:
-        debug("unexpected command: " + JSON.stringify(command));
-        // ignore unexpected command.
-        break;
-    }
-  },
-  function _connectedHandler(stateMachine, command) {
-    switch (command.type) {
-      case CommandType.DISCONNECT:
-        stateMachine.state = State.CLOSED;
-        stateMachine._notifyDisconnected(command.reason);
-        break;
-      case CommandType.LAUNCH_ACK:
-        stateMachine._notifyLaunch(command.presentationId);
-        break;
-      case CommandType.TERMINATE:
-        stateMachine._notifyTerminate(command.presentationId);
-        break;
-      case CommandType.TERMINATE_ACK:
-        stateMachine._notifyTerminate(command.presentationId);
-        break;
-      case CommandType.ANSWER:
-      case CommandType.ICE_CANDIDATE:
-        stateMachine._notifyChannelDescriptor(command);
-        break;
-      case CommandType.RECONNECT_ACK:
-        stateMachine._notifyReconnect(command.presentationId);
-        break;
-      default:
-        debug("unexpected command: " + JSON.stringify(command));
-        // ignore unexpected command.
-        break;
-    }
-  },
-  function _closingHandler(stateMachine, command) {
-    switch (command.type) {
-      case CommandType.DISCONNECT:
-        stateMachine.state = State.CLOSED;
-        stateMachine._notifyDisconnected(command.reason);
-        break;
-      default:
-        debug("unexpected command: " + JSON.stringify(command));
-        // ignore unexpected command.
-        break;
-    }
-  },
-  function _closedHandler(stateMachine, command) {
-    // ignore every command in closed state.
-    DEBUG && debug("unexpected command: " + JSON.stringify(command)); // jshint ignore:line
-  },
-];
-
-function ControllerStateMachine(channel, deviceId) {
-  this.state = State.INIT;
-  this._channel = channel;
-  this._deviceId = deviceId;
-}
-
-ControllerStateMachine.prototype = {
-  launch: function _launch(presentationId, url) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.LAUNCH,
-        presentationId: presentationId,
-        url: url,
-      });
-    }
-  },
-
-  terminate: function _terminate(presentationId) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.TERMINATE,
-        presentationId: presentationId,
-      });
-    }
-  },
-
-  terminateAck: function _terminateAck(presentationId) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.TERMINATE_ACK,
-        presentationId: presentationId,
-      });
-    }
-  },
-
-  reconnect: function _reconnect(presentationId, url) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.RECONNECT,
-        presentationId: presentationId,
-        url: url,
-      });
-    }
-  },
-
-  sendOffer: function _sendOffer(offer) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.OFFER,
-        offer: offer,
-      });
-    }
-  },
-
-  sendAnswer: function _sendAnswer() {
-    // answer can only be sent by presenting UA.
-    debug("controller shouldn't generate answer");
-  },
-
-  updateIceCandidate: function _updateIceCandidate(candidate) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.ICE_CANDIDATE,
-        candidate: candidate,
-      });
-    }
-  },
-
-  onCommand: function _onCommand(command) {
-    handlers[this.state](this, command);
-  },
-
-  onChannelReady: function _onChannelReady() {
-    if (this.state === State.INIT) {
-      this._sendCommand({
-        type: CommandType.CONNECT,
-        deviceId: this._deviceId
-      });
-      this.state = State.CONNECTING;
-    }
-  },
-
-  onChannelClosed: function _onChannelClose(reason, isByRemote) {
-    switch (this.state) {
-      case State.CONNECTED:
-        if (isByRemote) {
-          this.state = State.CLOSED;
-          this._notifyDisconnected(reason);
-        } else {
-          this._sendCommand({
-            type: CommandType.DISCONNECT,
-            reason: reason
-          });
-          this.state = State.CLOSING;
-          this._closeReason = reason;
-        }
-        break;
-      case State.CLOSING:
-        if (isByRemote) {
-          this.state = State.CLOSED;
-          if (this._closeReason) {
-            reason = this._closeReason;
-            delete this._closeReason;
-          }
-          this._notifyDisconnected(reason);
-        }
-        break;
-      default:
-        DEBUG && debug("unexpected channel close: " + reason + ", " + isByRemote); // jshint ignore:line
-        break;
-    }
-  },
-
-  _sendCommand: function _sendCommand(command) {
-    this._channel.sendCommand(command);
-  },
-
-  _notifyDeviceConnected: function _notifyDeviceConnected() {
-    //XXX trigger following command
-    this._channel.notifyDeviceConnected();
-  },
-
-  _notifyDisconnected: function _notifyDisconnected(reason) {
-    this._channel.notifyDisconnected(reason);
-  },
-
-  _notifyLaunch: function _notifyLaunch(presentationId) {
-    this._channel.notifyLaunch(presentationId);
-  },
-
-  _notifyTerminate: function _notifyTerminate(presentationId) {
-    this._channel.notifyTerminate(presentationId);
-  },
-
-  _notifyReconnect: function _notifyReconnect(presentationId) {
-    this._channel.notifyReconnect(presentationId);
-  },
-
-  _notifyChannelDescriptor: function _notifyChannelDescriptor(command) {
-    switch (command.type) {
-      case CommandType.ANSWER:
-        this._channel.notifyAnswer(command.answer);
-        break;
-      case CommandType.ICE_CANDIDATE:
-        this._channel.notifyIceCandidate(command.candidate);
-        break;
-    }
-  },
-};
-
-this.ControllerStateMachine = ControllerStateMachine; // jshint ignore:line
diff --git a/dom/presentation/provider/DeviceProviderHelpers.cpp b/dom/presentation/provider/DeviceProviderHelpers.cpp
deleted file mode 100644
index 00b2c12f1..000000000
--- a/dom/presentation/provider/DeviceProviderHelpers.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "DeviceProviderHelpers.h"
-
-#include "nsCOMPtr.h"
-#include "nsIURI.h"
-#include "nsNetUtil.h"
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-
-static const char* const kFxTVPresentationAppUrls[] = {
-  "app://fling-player.gaiamobile.org/index.html",
-  "app://notification-receiver.gaiamobile.org/index.html",
-  nullptr
-};
-
-/* static */ bool
-DeviceProviderHelpers::IsCommonlySupportedScheme(const nsAString& aUrl)
-{
-  nsCOMPtr<nsIURI> uri;
-  nsresult rv = NS_NewURI(getter_AddRefs(uri), aUrl);
-  if (NS_FAILED(rv) || !uri) {
-    return false;
-  }
-
-  nsAutoCString scheme;
-  uri->GetScheme(scheme);
-  if (scheme.LowerCaseEqualsLiteral("http") ||
-      scheme.LowerCaseEqualsLiteral("https")) {
-    return true;
-  }
-
-  return false;
-}
-
-/* static */ bool
-DeviceProviderHelpers::IsFxTVSupportedAppUrl(const nsAString& aUrl)
-{
-  // Check if matched with any presentation Apps on TV.
-  for (uint32_t i = 0; kFxTVPresentationAppUrls[i]; i++) {
-    if (aUrl.EqualsASCII(kFxTVPresentationAppUrls[i])) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-} // namespace presentation
-} // namespace dom
-} // namespace mozilla
diff --git a/dom/presentation/provider/DeviceProviderHelpers.h b/dom/presentation/provider/DeviceProviderHelpers.h
deleted file mode 100644
index 4bde09bed..000000000
--- a/dom/presentation/provider/DeviceProviderHelpers.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef mozilla_dom_presentation_DeviceProviderHelpers_h
-#define mozilla_dom_presentation_DeviceProviderHelpers_h
-
-#include "nsString.h"
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-
-class DeviceProviderHelpers final
-{
-public:
-  static bool IsCommonlySupportedScheme(const nsAString& aUrl);
-  static bool IsFxTVSupportedAppUrl(const nsAString& aUrl);
-
-private:
-  DeviceProviderHelpers() = delete;
-};
-
-} // namespace presentation
-} // namespace dom
-} // namespace mozilla
-
-#endif // mozilla_dom_presentation_DeviceProviderHelpers_h
diff --git a/dom/presentation/provider/DisplayDeviceProvider.cpp b/dom/presentation/provider/DisplayDeviceProvider.cpp
deleted file mode 100644
index 3f88aba5e..000000000
--- a/dom/presentation/provider/DisplayDeviceProvider.cpp
+++ /dev/null
@@ -1,580 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "DisplayDeviceProvider.h"
-
-#include "DeviceProviderHelpers.h"
-#include "mozilla/Logging.h"
-#include "mozilla/Preferences.h"
-#include "mozilla/Services.h"
-#include "mozilla/Unused.h"
-#include "nsIObserverService.h"
-#include "nsIServiceManager.h"
-#include "nsIWindowWatcher.h"
-#include "nsNetUtil.h"
-#include "nsPIDOMWindow.h"
-#include "nsSimpleURI.h"
-#include "nsTCPDeviceInfo.h"
-#include "nsThreadUtils.h"
-
-static mozilla::LazyLogModule gDisplayDeviceProviderLog("DisplayDeviceProvider");
-
-#define LOG(format) MOZ_LOG(gDisplayDeviceProviderLog, mozilla::LogLevel::Debug, format)
-
-#define DISPLAY_CHANGED_NOTIFICATION "display-changed"
-#define DEFAULT_CHROME_FEATURES_PREF "toolkit.defaultChromeFeatures"
-#define CHROME_REMOTE_URL_PREF       "b2g.multiscreen.chrome_remote_url"
-#define PREF_PRESENTATION_DISCOVERABLE_RETRY_MS "dom.presentation.discoverable.retry_ms"
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-
-/**
- * This wrapper is used to break circular-reference problem.
- */
-class DisplayDeviceProviderWrappedListener final
-  : public nsIPresentationControlServerListener
-{
-public:
-  NS_DECL_ISUPPORTS
-  NS_FORWARD_SAFE_NSIPRESENTATIONCONTROLSERVERLISTENER(mListener)
-
-  explicit DisplayDeviceProviderWrappedListener() = default;
-
-  nsresult SetListener(DisplayDeviceProvider* aListener)
-  {
-    mListener = aListener;
-    return NS_OK;
-  }
-
-private:
-  virtual ~DisplayDeviceProviderWrappedListener() = default;
-
-  DisplayDeviceProvider* mListener = nullptr;
-};
-
-NS_IMPL_ISUPPORTS(DisplayDeviceProviderWrappedListener,
-                  nsIPresentationControlServerListener)
-
-NS_IMPL_ISUPPORTS(DisplayDeviceProvider::HDMIDisplayDevice,
-                  nsIPresentationDevice,
-                  nsIPresentationLocalDevice)
-
-// nsIPresentationDevice
-NS_IMETHODIMP
-DisplayDeviceProvider::HDMIDisplayDevice::GetId(nsACString& aId)
-{
-  aId = mWindowId;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::HDMIDisplayDevice::GetName(nsACString& aName)
-{
-  aName = mName;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::HDMIDisplayDevice::GetType(nsACString& aType)
-{
-  aType = mType;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::HDMIDisplayDevice::GetWindowId(nsACString& aWindowId)
-{
-  aWindowId = mWindowId;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::HDMIDisplayDevice
-                     ::EstablishControlChannel(nsIPresentationControlChannel** aControlChannel)
-{
-  nsresult rv = OpenTopLevelWindow();
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  RefPtr<DisplayDeviceProvider> provider = mProvider.get();
-  if (NS_WARN_IF(!provider)) {
-    return NS_ERROR_FAILURE;
-  }
-  return provider->Connect(this, aControlChannel);
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::HDMIDisplayDevice::Disconnect()
-{
-  nsresult rv = CloseTopLevelWindow();
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-      return rv;
-  }
-  return NS_OK;;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::HDMIDisplayDevice::IsRequestedUrlSupported(
-                                                 const nsAString& aRequestedUrl,
-                                                 bool* aRetVal)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!aRetVal) {
-    return NS_ERROR_INVALID_POINTER;
-  }
-
-  // 1-UA device only supports HTTP/HTTPS hosted receiver page.
-  *aRetVal = DeviceProviderHelpers::IsCommonlySupportedScheme(aRequestedUrl);
-
-  return NS_OK;
-}
-
-nsresult
-DisplayDeviceProvider::HDMIDisplayDevice::OpenTopLevelWindow()
-{
-  MOZ_ASSERT(!mWindow);
-
-  nsresult rv;
-  nsAutoCString flags(Preferences::GetCString(DEFAULT_CHROME_FEATURES_PREF));
-  if (flags.IsEmpty()) {
-    return NS_ERROR_NOT_AVAILABLE;
-  }
-  flags.AppendLiteral(",mozDisplayId=");
-  flags.AppendInt(mScreenId);
-
-  nsAutoCString remoteShellURLString(Preferences::GetCString(CHROME_REMOTE_URL_PREF));
-  remoteShellURLString.AppendLiteral("#");
-  remoteShellURLString.Append(mWindowId);
-
-  // URI validation
-  nsCOMPtr<nsIURI> remoteShellURL;
-  rv = NS_NewURI(getter_AddRefs(remoteShellURL), remoteShellURLString);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  rv = remoteShellURL->GetSpec(remoteShellURLString);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  nsCOMPtr<nsIWindowWatcher> ww = do_GetService(NS_WINDOWWATCHER_CONTRACTID);
-  MOZ_ASSERT(ww);
-
-  rv = ww->OpenWindow(nullptr,
-                      remoteShellURLString.get(),
-                      "_blank",
-                      flags.get(),
-                      nullptr,
-                      getter_AddRefs(mWindow));
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-nsresult
-DisplayDeviceProvider::HDMIDisplayDevice::CloseTopLevelWindow()
-{
-  MOZ_ASSERT(mWindow);
-
-  nsCOMPtr<nsPIDOMWindowOuter> piWindow = nsPIDOMWindowOuter::From(mWindow);
-  nsresult rv = piWindow->Close();
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-NS_IMPL_ISUPPORTS(DisplayDeviceProvider,
-                  nsIObserver,
-                  nsIPresentationDeviceProvider,
-                  nsIPresentationControlServerListener)
-
-DisplayDeviceProvider::~DisplayDeviceProvider()
-{
-  Uninit();
-}
-
-nsresult
-DisplayDeviceProvider::Init()
-{
-  // Provider must be initialized only once.
-  if (mInitialized) {
-    return NS_OK;
-  }
-
-  nsresult rv;
-
-  mServerRetryMs = Preferences::GetUint(PREF_PRESENTATION_DISCOVERABLE_RETRY_MS);
-  mServerRetryTimer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
-  MOZ_ASSERT(obs);
-
-  obs->AddObserver(this, DISPLAY_CHANGED_NOTIFICATION, false);
-
-  mDevice = new HDMIDisplayDevice(this);
-
-  mWrappedListener = new DisplayDeviceProviderWrappedListener();
-  rv = mWrappedListener->SetListener(this);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  mPresentationService = do_CreateInstance(PRESENTATION_CONTROL_SERVICE_CONTACT_ID,
-                                           &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  rv = StartTCPService();
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  mInitialized = true;
-  return NS_OK;
-}
-
-nsresult
-DisplayDeviceProvider::Uninit()
-{
-  // Provider must be deleted only once.
-  if (!mInitialized) {
-    return NS_OK;
-  }
-
-  nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
-  if (obs) {
-    obs->RemoveObserver(this, DISPLAY_CHANGED_NOTIFICATION);
-  }
-
-  // Remove device from device manager when the provider is uninit
-  RemoveExternalScreen();
-
-  AbortServerRetry();
-
-  mInitialized = false;
-  mWrappedListener->SetListener(nullptr);
-  return NS_OK;
-}
-
-nsresult
-DisplayDeviceProvider::StartTCPService()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  nsresult rv;
-  rv =  mPresentationService->SetId(NS_LITERAL_CSTRING("DisplayDeviceProvider"));
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  uint16_t servicePort;
-  rv = mPresentationService->GetPort(&servicePort);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  /*
-   * If |servicePort| is non-zero, it means PresentationServer is running.
-   * Otherwise, we should make it start serving.
-   */
-  if (servicePort) {
-    mPort = servicePort;
-    return NS_OK;
-  }
-
-  rv = mPresentationService->SetListener(mWrappedListener);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  AbortServerRetry();
-
-  // 1-UA doesn't need encryption.
-  rv = mPresentationService->StartServer(/* aEncrypted = */ false,
-                                         /* aPort = */ 0);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-void
-DisplayDeviceProvider::AbortServerRetry()
-{
-  if (mIsServerRetrying) {
-    mIsServerRetrying = false;
-    mServerRetryTimer->Cancel();
-  }
-}
-
-nsresult
-DisplayDeviceProvider::AddExternalScreen()
-{
-  MOZ_ASSERT(mDeviceListener);
-
-  nsresult rv;
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  rv = GetListener(getter_AddRefs(listener));
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  rv = listener->AddDevice(mDevice);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-nsresult
-DisplayDeviceProvider::RemoveExternalScreen()
-{
-  MOZ_ASSERT(mDeviceListener);
-
-  nsresult rv;
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  rv = GetListener(getter_AddRefs(listener));
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  rv = listener->RemoveDevice(mDevice);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  mDevice->Disconnect();
-  return NS_OK;
-}
-
-// nsIPresentationDeviceProvider
-NS_IMETHODIMP
-DisplayDeviceProvider::GetListener(nsIPresentationDeviceListener** aListener)
-{
-  if (NS_WARN_IF(!aListener)) {
-    return NS_ERROR_INVALID_POINTER;
-  }
-
-  nsresult rv;
-  nsCOMPtr<nsIPresentationDeviceListener> listener =
-    do_QueryReferent(mDeviceListener, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-      return rv;
-  }
-
-  listener.forget(aListener);
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::SetListener(nsIPresentationDeviceListener* aListener)
-{
-  mDeviceListener = do_GetWeakReference(aListener);
-  nsresult rv = mDeviceListener ? Init() : Uninit();
-  if(NS_WARN_IF(NS_FAILED(rv))) {
-      return rv;
-  }
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::ForceDiscovery()
-{
-  return NS_OK;
-}
-
-// nsIPresentationControlServerListener
-NS_IMETHODIMP
-DisplayDeviceProvider::OnServerReady(uint16_t aPort,
-                                     const nsACString& aCertFingerprint)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  mPort = aPort;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::OnServerStopped(nsresult aResult)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  // Try restart server if it is stopped abnormally.
-  if (NS_FAILED(aResult)) {
-    mIsServerRetrying = true;
-    mServerRetryTimer->Init(this, mServerRetryMs, nsITimer::TYPE_ONE_SHOT);
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::OnSessionRequest(nsITCPDeviceInfo* aDeviceInfo,
-                                      const nsAString& aUrl,
-                                      const nsAString& aPresentationId,
-                                      nsIPresentationControlChannel* aControlChannel)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(aDeviceInfo);
-  MOZ_ASSERT(aControlChannel);
-
-  nsresult rv;
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  rv = GetListener(getter_AddRefs(listener));
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  MOZ_ASSERT(!listener);
-
-  rv = listener->OnSessionRequest(mDevice,
-                                  aUrl,
-                                  aPresentationId,
-                                  aControlChannel);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::OnTerminateRequest(nsITCPDeviceInfo* aDeviceInfo,
-                                          const nsAString& aPresentationId,
-                                          nsIPresentationControlChannel* aControlChannel,
-                                          bool aIsFromReceiver)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(aDeviceInfo);
-  MOZ_ASSERT(aControlChannel);
-
-  nsresult rv;
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  rv = GetListener(getter_AddRefs(listener));
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  MOZ_ASSERT(!listener);
-
-  rv = listener->OnTerminateRequest(mDevice,
-                                    aPresentationId,
-                                    aControlChannel,
-                                    aIsFromReceiver);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-DisplayDeviceProvider::OnReconnectRequest(nsITCPDeviceInfo* aDeviceInfo,
-                                          const nsAString& aUrl,
-                                          const nsAString& aPresentationId,
-                                          nsIPresentationControlChannel* aControlChannel)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(aDeviceInfo);
-  MOZ_ASSERT(aControlChannel);
-
-  nsresult rv;
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  rv = GetListener(getter_AddRefs(listener));
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  MOZ_ASSERT(!listener);
-
-  rv = listener->OnReconnectRequest(mDevice,
-                                    aUrl,
-                                    aPresentationId,
-                                    aControlChannel);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-// nsIObserver
-NS_IMETHODIMP
-DisplayDeviceProvider::Observe(nsISupports* aSubject,
-                               const char* aTopic,
-                               const char16_t* aData)
-{
-  if (!strcmp(aTopic, DISPLAY_CHANGED_NOTIFICATION)) {
-    nsCOMPtr<nsIDisplayInfo> displayInfo = do_QueryInterface(aSubject);
-    MOZ_ASSERT(displayInfo);
-
-    int32_t type;
-    bool isConnected;
-    displayInfo->GetConnected(&isConnected);
-    // XXX The ID is as same as the type of display.
-    // See Bug 1138287 and nsScreenManagerGonk::AddScreen() for more detail.
-    displayInfo->GetId(&type);
-
-    if (type == DisplayType::DISPLAY_EXTERNAL) {
-      nsresult rv = isConnected ? AddExternalScreen() : RemoveExternalScreen();
-      if (NS_WARN_IF(NS_FAILED(rv))) {
-        return rv;
-      }
-    }
-  } else if (!strcmp(aTopic, NS_TIMER_CALLBACK_TOPIC)) {
-    nsCOMPtr<nsITimer> timer = do_QueryInterface(aSubject);
-    if (!timer) {
-      return NS_ERROR_UNEXPECTED;
-    }
-
-    if (timer == mServerRetryTimer) {
-      mIsServerRetrying = false;
-      StartTCPService();
-    }
-  }
-
-  return NS_OK;
-}
-
-nsresult
-DisplayDeviceProvider::Connect(HDMIDisplayDevice* aDevice,
-                               nsIPresentationControlChannel** aControlChannel)
-{
-  MOZ_ASSERT(aDevice);
-  MOZ_ASSERT(mPresentationService);
-  NS_ENSURE_ARG_POINTER(aControlChannel);
-  *aControlChannel = nullptr;
-
-  nsCOMPtr<nsITCPDeviceInfo> deviceInfo = new TCPDeviceInfo(aDevice->Id(),
-                                                            aDevice->Address(),
-                                                            mPort,
-                                                            EmptyCString());
-
-  return mPresentationService->Connect(deviceInfo, aControlChannel);
-}
-
-} // namespace presentation
-} // namespace dom
-} // namespace mozilla
diff --git a/dom/presentation/provider/DisplayDeviceProvider.h b/dom/presentation/provider/DisplayDeviceProvider.h
deleted file mode 100644
index ebd5db394..000000000
--- a/dom/presentation/provider/DisplayDeviceProvider.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef mozilla_dom_presentation_provider_DisplayDeviceProvider_h
-#define mozilla_dom_presentation_provider_DisplayDeviceProvider_h
-
-#include "mozilla/RefPtr.h"
-#include "mozilla/WeakPtr.h"
-#include "nsCOMPtr.h"
-#include "nsIDOMWindow.h"
-#include "nsIDisplayInfo.h"
-#include "nsIObserver.h"
-#include "nsIPresentationDeviceProvider.h"
-#include "nsIPresentationLocalDevice.h"
-#include "nsIPresentationControlService.h"
-#include "nsITimer.h"
-#include "nsIWindowWatcher.h"
-#include "nsString.h"
-#include "nsTArray.h"
-#include "nsWeakReference.h"
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-
-// Consistent definition with the definition in
-// widget/gonk/libdisplay/GonkDisplay.h.
-enum DisplayType {
-    DISPLAY_PRIMARY,
-    DISPLAY_EXTERNAL,
-    DISPLAY_VIRTUAL,
-    NUM_DISPLAY_TYPES
-};
-
-class DisplayDeviceProviderWrappedListener;
-
-class DisplayDeviceProvider final : public nsIObserver
-                                  , public nsIPresentationDeviceProvider
-                                  , public nsIPresentationControlServerListener
-                                  , public SupportsWeakPtr<DisplayDeviceProvider>
-{
-private:
-  class HDMIDisplayDevice final : public nsIPresentationLocalDevice
-  {
-  public:
-    NS_DECL_ISUPPORTS
-    NS_DECL_NSIPRESENTATIONDEVICE
-    NS_DECL_NSIPRESENTATIONLOCALDEVICE
-
-    // mScreenId is as same as the definition of display type.
-    explicit HDMIDisplayDevice(DisplayDeviceProvider* aProvider)
-      : mScreenId(DisplayType::DISPLAY_EXTERNAL)
-      , mName("HDMI")
-      , mType("external")
-      , mWindowId("hdmi")
-      , mAddress("127.0.0.1")
-      , mProvider(aProvider)
-    {}
-
-    nsresult OpenTopLevelWindow();
-    nsresult CloseTopLevelWindow();
-
-    const nsCString& Id() const { return mWindowId; }
-    const nsCString& Address() const { return mAddress; }
-
-  private:
-    virtual ~HDMIDisplayDevice() = default;
-
-    // Due to the limitation of nsWinodw, mScreenId must be an integer.
-    // And mScreenId is also align to the display type defined in
-    // widget/gonk/libdisplay/GonkDisplay.h.
-    // HDMI display is DisplayType::DISPLAY_EXTERNAL.
-    uint32_t mScreenId;
-    nsCString mName;
-    nsCString mType;
-    nsCString mWindowId;
-    nsCString mAddress;
-
-    nsCOMPtr<mozIDOMWindowProxy> mWindow;
-    // weak pointer
-    // Provider hold a strong pointer to the device. Use weak pointer to prevent
-    // the reference cycle.
-    WeakPtr<DisplayDeviceProvider> mProvider;
-  };
-
-public:
-  NS_DECL_ISUPPORTS
-  NS_DECL_NSIOBSERVER
-  NS_DECL_NSIPRESENTATIONDEVICEPROVIDER
-  NS_DECL_NSIPRESENTATIONCONTROLSERVERLISTENER
-  // For using WeakPtr when MOZ_REFCOUNTED_LEAK_CHECKING defined
-  MOZ_DECLARE_WEAKREFERENCE_TYPENAME(DisplayDeviceProvider)
-
-  nsresult Connect(HDMIDisplayDevice* aDevice,
-                   nsIPresentationControlChannel** aControlChannel);
-private:
-  virtual ~DisplayDeviceProvider();
-
-  nsresult Init();
-  nsresult Uninit();
-
-  nsresult AddExternalScreen();
-  nsresult RemoveExternalScreen();
-
-  nsresult StartTCPService();
-
-  void AbortServerRetry();
-
-  // Now support HDMI display only and there should be only one HDMI display.
-  nsCOMPtr<nsIPresentationLocalDevice> mDevice = nullptr;
-  // weak pointer
-  // PresentationDeviceManager (mDeviceListener) hold strong pointer to
-  // DisplayDeviceProvider. Use nsWeakPtr to avoid reference cycle.
-  nsWeakPtr mDeviceListener = nullptr;
-  nsCOMPtr<nsIPresentationControlService> mPresentationService;
-  // Used to prevent reference cycle between DisplayDeviceProvider and
-  // TCPPresentationServer.
-  RefPtr<DisplayDeviceProviderWrappedListener> mWrappedListener;
-
-  bool mInitialized = false;
-  uint16_t mPort;
-
-  bool mIsServerRetrying = false;
-  uint32_t mServerRetryMs;
-  nsCOMPtr<nsITimer> mServerRetryTimer;
-};
-
-} // mozilla
-} // dom
-} // presentation
-
-#endif // mozilla_dom_presentation_provider_DisplayDeviceProvider_h
-
diff --git a/dom/presentation/provider/LegacyMDNSDeviceProvider.cpp b/dom/presentation/provider/LegacyMDNSDeviceProvider.cpp
deleted file mode 100644
index 54849c9e3..000000000
--- a/dom/presentation/provider/LegacyMDNSDeviceProvider.cpp
+++ /dev/null
@@ -1,774 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "LegacyMDNSDeviceProvider.h"
-
-#include "DeviceProviderHelpers.h"
-#include "MainThreadUtils.h"
-#include "mozilla/Logging.h"
-#include "mozilla/Preferences.h"
-#include "mozilla/Services.h"
-#include "mozilla/Unused.h"
-#include "nsComponentManagerUtils.h"
-#include "nsIObserverService.h"
-#include "nsIWritablePropertyBag2.h"
-#include "nsServiceManagerUtils.h"
-#include "nsTCPDeviceInfo.h"
-#include "nsThreadUtils.h"
-#include "nsIPropertyBag2.h"
-
-#define PREF_PRESENTATION_DISCOVERY_LEGACY "dom.presentation.discovery.legacy.enabled"
-#define PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS "dom.presentation.discovery.timeout_ms"
-#define PREF_PRESENTATION_DEVICE_NAME "dom.presentation.device.name"
-
-#define LEGACY_SERVICE_TYPE "_mozilla_papi._tcp"
-
-#define LEGACY_PRESENTATION_CONTROL_SERVICE_CONTACT_ID "@mozilla.org/presentation/legacy-control-service;1"
-
-static mozilla::LazyLogModule sLegacyMDNSProviderLogModule("LegacyMDNSDeviceProvider");
-
-#undef LOG_I
-#define LOG_I(...) MOZ_LOG(sLegacyMDNSProviderLogModule, mozilla::LogLevel::Debug, (__VA_ARGS__))
-#undef LOG_E
-#define LOG_E(...) MOZ_LOG(sLegacyMDNSProviderLogModule, mozilla::LogLevel::Error, (__VA_ARGS__))
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-namespace legacy {
-
-static const char* kObservedPrefs[] = {
-  PREF_PRESENTATION_DISCOVERY_LEGACY,
-  PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS,
-  PREF_PRESENTATION_DEVICE_NAME,
-  nullptr
-};
-
-namespace {
-
-static void
-GetAndroidDeviceName(nsACString& aRetVal)
-{
-  nsCOMPtr<nsIPropertyBag2> infoService = do_GetService("@mozilla.org/system-info;1");
-  MOZ_ASSERT(infoService, "Could not find a system info service");
-
-  Unused << NS_WARN_IF(NS_FAILED(infoService->GetPropertyAsACString(
-                                   NS_LITERAL_STRING("device"), aRetVal)));
-}
-
-} //anonymous namespace
-
-/**
- * This wrapper is used to break circular-reference problem.
- */
-class DNSServiceWrappedListener final
-  : public nsIDNSServiceDiscoveryListener
-  , public nsIDNSServiceResolveListener
-{
-public:
-  NS_DECL_ISUPPORTS
-  NS_FORWARD_SAFE_NSIDNSSERVICEDISCOVERYLISTENER(mListener)
-  NS_FORWARD_SAFE_NSIDNSSERVICERESOLVELISTENER(mListener)
-
-  explicit DNSServiceWrappedListener() = default;
-
-  nsresult SetListener(LegacyMDNSDeviceProvider* aListener)
-  {
-    mListener = aListener;
-    return NS_OK;
-  }
-
-private:
-  virtual ~DNSServiceWrappedListener() = default;
-
-  LegacyMDNSDeviceProvider* mListener = nullptr;
-};
-
-NS_IMPL_ISUPPORTS(DNSServiceWrappedListener,
-                  nsIDNSServiceDiscoveryListener,
-                  nsIDNSServiceResolveListener)
-
-NS_IMPL_ISUPPORTS(LegacyMDNSDeviceProvider,
-                  nsIPresentationDeviceProvider,
-                  nsIDNSServiceDiscoveryListener,
-                  nsIDNSServiceResolveListener,
-                  nsIObserver)
-
-LegacyMDNSDeviceProvider::~LegacyMDNSDeviceProvider()
-{
-  Uninit();
-}
-
-nsresult
-LegacyMDNSDeviceProvider::Init()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (mInitialized) {
-    return NS_OK;
-  }
-
-  nsresult rv;
-
-  mMulticastDNS = do_GetService(DNSSERVICEDISCOVERY_CONTRACT_ID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  mWrappedListener = new DNSServiceWrappedListener();
-  if (NS_WARN_IF(NS_FAILED(rv = mWrappedListener->SetListener(this)))) {
-    return rv;
-  }
-
-  mPresentationService = do_CreateInstance(LEGACY_PRESENTATION_CONTROL_SERVICE_CONTACT_ID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  mDiscoveryTimer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  Preferences::AddStrongObservers(this, kObservedPrefs);
-
-  mDiscoveryEnabled = Preferences::GetBool(PREF_PRESENTATION_DISCOVERY_LEGACY);
-  mDiscoveryTimeoutMs = Preferences::GetUint(PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS);
-  mServiceName = Preferences::GetCString(PREF_PRESENTATION_DEVICE_NAME);
-
-  // FIXME: Bug 1185806 - Provide a common device name setting.
-  if (mServiceName.IsEmpty()) {
-    GetAndroidDeviceName(mServiceName);
-    Unused << Preferences::SetCString(PREF_PRESENTATION_DEVICE_NAME, mServiceName);
-  }
-
-  Unused << mPresentationService->SetId(mServiceName);
-
-  if (mDiscoveryEnabled && NS_WARN_IF(NS_FAILED(rv = ForceDiscovery()))) {
-    return rv;
-  }
-
-  mInitialized = true;
-  return NS_OK;
-}
-
-nsresult
-LegacyMDNSDeviceProvider::Uninit()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!mInitialized) {
-    return NS_OK;
-  }
-
-  ClearDevices();
-
-  Preferences::RemoveObservers(this, kObservedPrefs);
-
-  StopDiscovery(NS_OK);
-
-  mMulticastDNS = nullptr;
-
-  if (mWrappedListener) {
-    mWrappedListener->SetListener(nullptr);
-    mWrappedListener = nullptr;
-  }
-
-  mInitialized = false;
-  return NS_OK;
-}
-
-nsresult
-LegacyMDNSDeviceProvider::StopDiscovery(nsresult aReason)
-{
-  LOG_I("StopDiscovery (0x%08x)", aReason);
-
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mDiscoveryTimer);
-
-  Unused << mDiscoveryTimer->Cancel();
-
-  if (mDiscoveryRequest) {
-    mDiscoveryRequest->Cancel(aReason);
-    mDiscoveryRequest = nullptr;
-  }
-
-  return NS_OK;
-}
-
-nsresult
-LegacyMDNSDeviceProvider::Connect(Device* aDevice,
-                                  nsIPresentationControlChannel** aRetVal)
-{
-  MOZ_ASSERT(aDevice);
-  MOZ_ASSERT(mPresentationService);
-
-  RefPtr<TCPDeviceInfo> deviceInfo = new TCPDeviceInfo(aDevice->Id(),
-                                                       aDevice->Address(),
-                                                       aDevice->Port(),
-                                                       EmptyCString());
-
-  return mPresentationService->Connect(deviceInfo, aRetVal);
-}
-
-nsresult
-LegacyMDNSDeviceProvider::AddDevice(const nsACString& aId,
-                                    const nsACString& aServiceName,
-                                    const nsACString& aServiceType,
-                                    const nsACString& aAddress,
-                                    const uint16_t aPort)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mPresentationService);
-
-  RefPtr<Device> device = new Device(aId, /* ID */
-                                     aServiceName,
-                                     aServiceType,
-                                     aAddress,
-                                     aPort,
-                                     DeviceState::eActive,
-                                     this);
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->AddDevice(device);
-  }
-
-  mDevices.AppendElement(device);
-
-  return NS_OK;
-}
-
-nsresult
-LegacyMDNSDeviceProvider::UpdateDevice(const uint32_t aIndex,
-                                       const nsACString& aServiceName,
-                                       const nsACString& aServiceType,
-                                       const nsACString& aAddress,
-                                       const uint16_t aPort)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mPresentationService);
-
-  if (NS_WARN_IF(aIndex >= mDevices.Length())) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  RefPtr<Device> device = mDevices[aIndex];
-  device->Update(aServiceName, aServiceType, aAddress, aPort);
-  device->ChangeState(DeviceState::eActive);
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->UpdateDevice(device);
-  }
-
-  return NS_OK;
-}
-
-nsresult
-LegacyMDNSDeviceProvider::RemoveDevice(const uint32_t aIndex)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mPresentationService);
-
-  if (NS_WARN_IF(aIndex >= mDevices.Length())) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  RefPtr<Device> device = mDevices[aIndex];
-
-  LOG_I("RemoveDevice: %s", device->Id().get());
-  mDevices.RemoveElementAt(aIndex);
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->RemoveDevice(device);
-  }
-
-  return NS_OK;
-}
-
-bool
-LegacyMDNSDeviceProvider::FindDeviceById(const nsACString& aId,
-                                         uint32_t& aIndex)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  RefPtr<Device> device = new Device(aId,
-                                     /* aName = */ EmptyCString(),
-                                     /* aType = */ EmptyCString(),
-                                     /* aHost = */ EmptyCString(),
-                                     /* aPort = */ 0,
-                                     /* aState = */ DeviceState::eUnknown,
-                                     /* aProvider = */ nullptr);
-  size_t index = mDevices.IndexOf(device, 0, DeviceIdComparator());
-
-  if (index == mDevices.NoIndex) {
-    return false;
-  }
-
-  aIndex = index;
-  return true;
-}
-
-bool
-LegacyMDNSDeviceProvider::FindDeviceByAddress(const nsACString& aAddress,
-                                              uint32_t& aIndex)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  RefPtr<Device> device = new Device(/* aId = */ EmptyCString(),
-                                     /* aName = */ EmptyCString(),
-                                     /* aType = */ EmptyCString(),
-                                     aAddress,
-                                     /* aPort = */ 0,
-                                     /* aState = */ DeviceState::eUnknown,
-                                     /* aProvider = */ nullptr);
-  size_t index = mDevices.IndexOf(device, 0, DeviceAddressComparator());
-
-  if (index == mDevices.NoIndex) {
-    return false;
-  }
-
-  aIndex = index;
-  return true;
-}
-
-void
-LegacyMDNSDeviceProvider::MarkAllDevicesUnknown()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  for (auto& device : mDevices) {
-    device->ChangeState(DeviceState::eUnknown);
-  }
-}
-
-void
-LegacyMDNSDeviceProvider::ClearUnknownDevices()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  size_t i = mDevices.Length();
-  while (i > 0) {
-    --i;
-    if (mDevices[i]->State() == DeviceState::eUnknown) {
-      Unused << NS_WARN_IF(NS_FAILED(RemoveDevice(i)));
-    }
-  }
-}
-
-void
-LegacyMDNSDeviceProvider::ClearDevices()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  size_t i = mDevices.Length();
-  while (i > 0) {
-    --i;
-    Unused << NS_WARN_IF(NS_FAILED(RemoveDevice(i)));
-  }
-}
-
-// nsIPresentationDeviceProvider
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::GetListener(nsIPresentationDeviceListener** aListener)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aListener)) {
-    return NS_ERROR_INVALID_POINTER;
-  }
-
-  nsresult rv;
-  nsCOMPtr<nsIPresentationDeviceListener> listener =
-    do_QueryReferent(mDeviceListener, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  listener.forget(aListener);
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::SetListener(nsIPresentationDeviceListener* aListener)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mDeviceListener = do_GetWeakReference(aListener);
-
-  nsresult rv;
-  if (mDeviceListener) {
-    if (NS_WARN_IF(NS_FAILED(rv = Init()))) {
-      return rv;
-    }
-  } else {
-    if (NS_WARN_IF(NS_FAILED(rv = Uninit()))) {
-      return rv;
-    }
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::ForceDiscovery()
-{
-  LOG_I("ForceDiscovery (%d)", mDiscoveryEnabled);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!mDiscoveryEnabled) {
-    return NS_OK;
-  }
-
-  MOZ_ASSERT(mDiscoveryTimer);
-  MOZ_ASSERT(mMulticastDNS);
-
-  // if it's already discovering, extend existing discovery timeout.
-  nsresult rv;
-  if (mIsDiscovering) {
-    Unused << mDiscoveryTimer->Cancel();
-
-    if (NS_WARN_IF(NS_FAILED( rv = mDiscoveryTimer->Init(this,
-        mDiscoveryTimeoutMs,
-        nsITimer::TYPE_ONE_SHOT)))) {
-        return rv;
-    }
-    return NS_OK;
-  }
-
-  StopDiscovery(NS_OK);
-
-  if (NS_WARN_IF(NS_FAILED(rv = mMulticastDNS->StartDiscovery(
-      NS_LITERAL_CSTRING(LEGACY_SERVICE_TYPE),
-      mWrappedListener,
-      getter_AddRefs(mDiscoveryRequest))))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-// nsIDNSServiceDiscoveryListener
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::OnDiscoveryStarted(const nsACString& aServiceType)
-{
-  LOG_I("OnDiscoveryStarted");
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mDiscoveryTimer);
-
-  MarkAllDevicesUnknown();
-
-  nsresult rv;
-  if (NS_WARN_IF(NS_FAILED(rv = mDiscoveryTimer->Init(this,
-                                                      mDiscoveryTimeoutMs,
-                                                      nsITimer::TYPE_ONE_SHOT)))) {
-    return rv;
-  }
-
-  mIsDiscovering = true;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::OnDiscoveryStopped(const nsACString& aServiceType)
-{
-  LOG_I("OnDiscoveryStopped");
-  MOZ_ASSERT(NS_IsMainThread());
-
-  ClearUnknownDevices();
-
-  mIsDiscovering = false;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::OnServiceFound(nsIDNSServiceInfo* aServiceInfo)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aServiceInfo)) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  nsresult rv ;
-
-  nsAutoCString serviceName;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceName(serviceName)))) {
-    return rv;
-  }
-
-  LOG_I("OnServiceFound: %s", serviceName.get());
-
-  if (mMulticastDNS) {
-    if (NS_WARN_IF(NS_FAILED(rv = mMulticastDNS->ResolveService(
-        aServiceInfo, mWrappedListener)))) {
-      return rv;
-    }
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::OnServiceLost(nsIDNSServiceInfo* aServiceInfo)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aServiceInfo)) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  nsresult rv;
-
-  nsAutoCString serviceName;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceName(serviceName)))) {
-    return rv;
-  }
-
-  LOG_I("OnServiceLost: %s", serviceName.get());
-
-  nsAutoCString host;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetHost(host)))) {
-    return rv;
-  }
-
-  uint32_t index;
-  if (!FindDeviceById(host, index)) {
-    // given device was not found
-    return NS_OK;
-  }
-
-  if (NS_WARN_IF(NS_FAILED(rv = RemoveDevice(index)))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::OnStartDiscoveryFailed(const nsACString& aServiceType,
-                                                 int32_t aErrorCode)
-{
-  LOG_E("OnStartDiscoveryFailed: %d", aErrorCode);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::OnStopDiscoveryFailed(const nsACString& aServiceType,
-                                                int32_t aErrorCode)
-{
-  LOG_E("OnStopDiscoveryFailed: %d", aErrorCode);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  return NS_OK;
-}
-
-// nsIDNSServiceResolveListener
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::OnServiceResolved(nsIDNSServiceInfo* aServiceInfo)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aServiceInfo)) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  nsresult rv;
-
-  nsAutoCString serviceName;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceName(serviceName)))) {
-    return rv;
-  }
-
-  LOG_I("OnServiceResolved: %s", serviceName.get());
-
-  nsAutoCString host;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetHost(host)))) {
-    return rv;
-  }
-
-  nsAutoCString address;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetAddress(address)))) {
-    return rv;
-  }
-
-  uint16_t port;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetPort(&port)))) {
-    return rv;
-  }
-
-  nsAutoCString serviceType;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceType(serviceType)))) {
-    return rv;
-  }
-
-  uint32_t index;
-  if (FindDeviceById(host, index)) {
-    return UpdateDevice(index,
-                        serviceName,
-                        serviceType,
-                        address,
-                        port);
-  } else {
-    return AddDevice(host,
-                     serviceName,
-                     serviceType,
-                     address,
-                     port);
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::OnResolveFailed(nsIDNSServiceInfo* aServiceInfo,
-                                          int32_t aErrorCode)
-{
-  LOG_E("OnResolveFailed: %d", aErrorCode);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  return NS_OK;
-}
-
-// nsIObserver
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::Observe(nsISupports* aSubject,
-                                  const char* aTopic,
-                                  const char16_t* aData)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  NS_ConvertUTF16toUTF8 data(aData);
-  LOG_I("Observe: topic = %s, data = %s", aTopic, data.get());
-
-  if (!strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID)) {
-    if (data.EqualsLiteral(PREF_PRESENTATION_DISCOVERY_LEGACY)) {
-      OnDiscoveryChanged(Preferences::GetBool(PREF_PRESENTATION_DISCOVERY_LEGACY));
-    } else if (data.EqualsLiteral(PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS)) {
-      OnDiscoveryTimeoutChanged(Preferences::GetUint(PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS));
-    } else if (data.EqualsLiteral(PREF_PRESENTATION_DEVICE_NAME)) {
-      nsAdoptingCString newServiceName = Preferences::GetCString(PREF_PRESENTATION_DEVICE_NAME);
-      if (!mServiceName.Equals(newServiceName)) {
-        OnServiceNameChanged(newServiceName);
-      }
-    }
-  } else if (!strcmp(aTopic, NS_TIMER_CALLBACK_TOPIC)) {
-    StopDiscovery(NS_OK);
-  }
-
-  return NS_OK;
-}
-
-nsresult
-LegacyMDNSDeviceProvider::OnDiscoveryChanged(bool aEnabled)
-{
-  LOG_I("DiscoveryEnabled = %d\n", aEnabled);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mDiscoveryEnabled = aEnabled;
-
-  if (mDiscoveryEnabled) {
-    return ForceDiscovery();
-  }
-
-  return StopDiscovery(NS_OK);
-}
-
-nsresult
-LegacyMDNSDeviceProvider::OnDiscoveryTimeoutChanged(uint32_t aTimeoutMs)
-{
-  LOG_I("OnDiscoveryTimeoutChanged = %d\n", aTimeoutMs);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mDiscoveryTimeoutMs = aTimeoutMs;
-
-  return NS_OK;
-}
-
-nsresult
-LegacyMDNSDeviceProvider::OnServiceNameChanged(const nsACString& aServiceName)
-{
-  LOG_I("serviceName = %s\n", PromiseFlatCString(aServiceName).get());
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mServiceName = aServiceName;
-  mPresentationService->SetId(mServiceName);
-
-  return NS_OK;
-}
-
-// LegacyMDNSDeviceProvider::Device
-NS_IMPL_ISUPPORTS(LegacyMDNSDeviceProvider::Device,
-                  nsIPresentationDevice)
-
-// nsIPresentationDevice
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::Device::GetId(nsACString& aId)
-{
-  aId = mId;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::Device::GetName(nsACString& aName)
-{
-  aName = mName;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::Device::GetType(nsACString& aType)
-{
-  aType = mType;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::Device::EstablishControlChannel(
-                                        nsIPresentationControlChannel** aRetVal)
-{
-  if (!mProvider) {
-    return NS_ERROR_FAILURE;
-  }
-
-  return mProvider->Connect(this, aRetVal);
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::Device::Disconnect()
-{
-  // No need to do anything when disconnect.
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-LegacyMDNSDeviceProvider::Device::IsRequestedUrlSupported(
-                                                 const nsAString& aRequestedUrl,
-                                                 bool* aRetVal)
-{
-  if (!aRetVal) {
-    return NS_ERROR_INVALID_POINTER;
-  }
-
-  // Legacy TV 2.5 device only support a fixed set of presentation Apps.
-  *aRetVal = DeviceProviderHelpers::IsFxTVSupportedAppUrl(aRequestedUrl);
-
-  return NS_OK;
-}
-
-} // namespace legacy
-} // namespace presentation
-} // namespace dom
-} // namespace mozilla
diff --git a/dom/presentation/provider/LegacyMDNSDeviceProvider.h b/dom/presentation/provider/LegacyMDNSDeviceProvider.h
deleted file mode 100644
index 33ba877d3..000000000
--- a/dom/presentation/provider/LegacyMDNSDeviceProvider.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef mozilla_dom_presentation_provider_LegacyMDNSDeviceProvider_h
-#define mozilla_dom_presentation_provider_LegacyMDNSDeviceProvider_h
-
-#include "mozilla/RefPtr.h"
-#include "nsCOMPtr.h"
-#include "nsICancelable.h"
-#include "nsIDNSServiceDiscovery.h"
-#include "nsIObserver.h"
-#include "nsIPresentationDevice.h"
-#include "nsIPresentationDeviceProvider.h"
-#include "nsIPresentationControlService.h"
-#include "nsITimer.h"
-#include "nsString.h"
-#include "nsTArray.h"
-#include "nsWeakPtr.h"
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-namespace legacy {
-
-class DNSServiceWrappedListener;
-class MulticastDNSService;
-
-class LegacyMDNSDeviceProvider final
-  : public nsIPresentationDeviceProvider
-  , public nsIDNSServiceDiscoveryListener
-  , public nsIDNSServiceResolveListener
-  , public nsIObserver
-{
-public:
-  NS_DECL_ISUPPORTS
-  NS_DECL_NSIPRESENTATIONDEVICEPROVIDER
-  NS_DECL_NSIDNSSERVICEDISCOVERYLISTENER
-  NS_DECL_NSIDNSSERVICERESOLVELISTENER
-  NS_DECL_NSIOBSERVER
-
-  explicit LegacyMDNSDeviceProvider() = default;
-  nsresult Init();
-  nsresult Uninit();
-
-private:
-  enum class DeviceState : uint32_t {
-    eUnknown,
-    eActive
-  };
-
-  class Device final : public nsIPresentationDevice
-  {
-  public:
-    NS_DECL_ISUPPORTS
-    NS_DECL_NSIPRESENTATIONDEVICE
-
-    explicit Device(const nsACString& aId,
-                    const nsACString& aName,
-                    const nsACString& aType,
-                    const nsACString& aAddress,
-                    const uint16_t aPort,
-                    DeviceState aState,
-                    LegacyMDNSDeviceProvider* aProvider)
-      : mId(aId)
-      , mName(aName)
-      , mType(aType)
-      , mAddress(aAddress)
-      , mPort(aPort)
-      , mState(aState)
-      , mProvider(aProvider)
-    {
-    }
-
-    const nsCString& Id() const
-    {
-      return mId;
-    }
-
-    const nsCString& Address() const
-    {
-      return mAddress;
-    }
-
-    uint16_t Port() const
-    {
-      return mPort;
-    }
-
-    DeviceState State() const
-    {
-      return mState;
-    }
-
-    void ChangeState(DeviceState aState)
-    {
-      mState = aState;
-    }
-
-    void Update(const nsACString& aName,
-                const nsACString& aType,
-                const nsACString& aAddress,
-                const uint16_t aPort)
-    {
-      mName = aName;
-      mType = aType;
-      mAddress = aAddress;
-      mPort = aPort;
-    }
-
-  private:
-    virtual ~Device() = default;
-
-    nsCString mId;
-    nsCString mName;
-    nsCString mType;
-    nsCString mAddress;
-    uint16_t mPort;
-    DeviceState mState;
-    LegacyMDNSDeviceProvider* mProvider;
-  };
-
-  struct DeviceIdComparator {
-    bool Equals(const RefPtr<Device>& aA, const RefPtr<Device>& aB) const {
-      return aA->Id() == aB->Id();
-    }
-  };
-
-  struct DeviceAddressComparator {
-    bool Equals(const RefPtr<Device>& aA, const RefPtr<Device>& aB) const {
-      return aA->Address() == aB->Address();
-    }
-  };
-
-  virtual ~LegacyMDNSDeviceProvider();
-  nsresult StopDiscovery(nsresult aReason);
-  nsresult Connect(Device* aDevice,
-                   nsIPresentationControlChannel** aRetVal);
-
-  // device manipulation
-  nsresult AddDevice(const nsACString& aId,
-                     const nsACString& aServiceName,
-                     const nsACString& aServiceType,
-                     const nsACString& aAddress,
-                     const uint16_t aPort);
-  nsresult UpdateDevice(const uint32_t aIndex,
-                        const nsACString& aServiceName,
-                        const nsACString& aServiceType,
-                        const nsACString& aAddress,
-                        const uint16_t aPort);
-  nsresult RemoveDevice(const uint32_t aIndex);
-  bool FindDeviceById(const nsACString& aId,
-                      uint32_t& aIndex);
-
-  bool FindDeviceByAddress(const nsACString& aAddress,
-                           uint32_t& aIndex);
-
-  void MarkAllDevicesUnknown();
-  void ClearUnknownDevices();
-  void ClearDevices();
-
-  // preferences
-  nsresult OnDiscoveryChanged(bool aEnabled);
-  nsresult OnDiscoveryTimeoutChanged(uint32_t aTimeoutMs);
-  nsresult OnServiceNameChanged(const nsACString& aServiceName);
-
-  bool mInitialized = false;
-  nsWeakPtr mDeviceListener;
-  nsCOMPtr<nsIPresentationControlService> mPresentationService;
-  nsCOMPtr<nsIDNSServiceDiscovery> mMulticastDNS;
-  RefPtr<DNSServiceWrappedListener> mWrappedListener;
-
-  nsCOMPtr<nsICancelable> mDiscoveryRequest;
-
-  nsTArray<RefPtr<Device>> mDevices;
-
-  bool mDiscoveryEnabled = false;
-  bool mIsDiscovering = false;
-  uint32_t mDiscoveryTimeoutMs;
-  nsCOMPtr<nsITimer> mDiscoveryTimer;
-
-  nsCString mServiceName;
-};
-
-} // namespace legacy
-} // namespace presentation
-} // namespace dom
-} // namespace mozilla
-
-#endif // mozilla_dom_presentation_provider_LegacyMDNSDeviceProvider_h
diff --git a/dom/presentation/provider/LegacyPresentationControlService.js b/dom/presentation/provider/LegacyPresentationControlService.js
deleted file mode 100644
index b27177b63..000000000
--- a/dom/presentation/provider/LegacyPresentationControlService.js
+++ /dev/null
@@ -1,488 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* jshint esnext:true, globalstrict:true, moz:true, undef:true, unused:true */
-/* globals Components, dump */
-"use strict";
-
-const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
-
-/* globals XPCOMUtils */
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-/* globals Services */
-Cu.import("resource://gre/modules/Services.jsm");
-/* globals NetUtil */
-Cu.import("resource://gre/modules/NetUtil.jsm");
-
-const DEBUG = Services.prefs.getBoolPref("dom.presentation.tcp_server.debug");
-function log(aMsg) {
-  dump("-*- LegacyPresentationControlService.js: " + aMsg + "\n");
-}
-
-function LegacyPresentationControlService() {
-  DEBUG && log("LegacyPresentationControlService - ctor"); //jshint ignore:line
-  this._id = null;
-}
-
-LegacyPresentationControlService.prototype = {
-  startServer: function() {
-    DEBUG && log("LegacyPresentationControlService - doesn't support receiver mode"); //jshint ignore:line
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  get id() {
-    return this._id;
-  },
-
-  set id(aId) {
-    this._id = aId;
-  },
-
-  get port() {
-    return 0;
-  },
-
-  get version() {
-    return 0;
-  },
-
-  set listener(aListener) { //jshint ignore:line
-    DEBUG && log("LegacyPresentationControlService - doesn't support receiver mode"); //jshint ignore:line
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  get listener() {
-    return null;
-  },
-
-  connect: function(aDeviceInfo) {
-    if (!this.id) {
-      DEBUG && log("LegacyPresentationControlService - Id has not initialized; requestSession fails"); //jshint ignore:line
-      return null;
-    }
-    DEBUG && log("LegacyPresentationControlService - requestSession to " + aDeviceInfo.id); //jshint ignore:line
-
-    let sts = Cc["@mozilla.org/network/socket-transport-service;1"]
-                .getService(Ci.nsISocketTransportService);
-
-    let socketTransport;
-    try {
-      socketTransport = sts.createTransport(null,
-                                            0,
-                                            aDeviceInfo.address,
-                                            aDeviceInfo.port,
-                                            null);
-    } catch (e) {
-      DEBUG && log("LegacyPresentationControlService - createTransport throws: " + e); //jshint ignore:line
-      // Pop the exception to |TCPDevice.establishControlChannel|
-      throw Cr.NS_ERROR_FAILURE;
-    }
-    return new LegacyTCPControlChannel(this.id,
-                                       socketTransport,
-                                       aDeviceInfo);
-  },
-
-  close: function() {
-    DEBUG && log("LegacyPresentationControlService - close"); //jshint ignore:line
-  },
-
-  classID: Components.ID("{b21816fe-8aff-4811-86d2-85a7444c557e}"),
-  QueryInterface : XPCOMUtils.generateQI([Ci.nsIPresentationControlService]),
-};
-
-function ChannelDescription(aInit) {
-  this._type = aInit.type;
-  switch (this._type) {
-    case Ci.nsIPresentationChannelDescription.TYPE_TCP:
-      this._tcpAddresses = Cc["@mozilla.org/array;1"]
-                           .createInstance(Ci.nsIMutableArray);
-      for (let address of aInit.tcpAddress) {
-        let wrapper = Cc["@mozilla.org/supports-cstring;1"]
-                      .createInstance(Ci.nsISupportsCString);
-        wrapper.data = address;
-        this._tcpAddresses.appendElement(wrapper, false);
-      }
-
-      this._tcpPort = aInit.tcpPort;
-      break;
-    case Ci.nsIPresentationChannelDescription.TYPE_DATACHANNEL:
-      this._dataChannelSDP = aInit.dataChannelSDP;
-      break;
-  }
-}
-
-ChannelDescription.prototype = {
-  _type: 0,
-  _tcpAddresses: null,
-  _tcpPort: 0,
-  _dataChannelSDP: "",
-
-  get type() {
-    return this._type;
-  },
-
-  get tcpAddress() {
-    return this._tcpAddresses;
-  },
-
-  get tcpPort() {
-    return this._tcpPort;
-  },
-
-  get dataChannelSDP() {
-    return this._dataChannelSDP;
-  },
-
-  classID: Components.ID("{d69fc81c-4f40-47a3-97e6-b4cf5db2294e}"),
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIPresentationChannelDescription]),
-};
-
-// Helper function: transfer nsIPresentationChannelDescription to json
-function discriptionAsJson(aDescription) {
-  let json = {};
-  json.type = aDescription.type;
-  switch(aDescription.type) {
-    case Ci.nsIPresentationChannelDescription.TYPE_TCP:
-      let addresses = aDescription.tcpAddress.QueryInterface(Ci.nsIArray);
-      json.tcpAddress = [];
-      for (let idx = 0; idx < addresses.length; idx++) {
-        let address = addresses.queryElementAt(idx, Ci.nsISupportsCString);
-        json.tcpAddress.push(address.data);
-      }
-      json.tcpPort = aDescription.tcpPort;
-      break;
-    case Ci.nsIPresentationChannelDescription.TYPE_DATACHANNEL:
-      json.dataChannelSDP = aDescription.dataChannelSDP;
-      break;
-  }
-  return json;
-}
-
-function LegacyTCPControlChannel(id,
-                                 transport,
-                                 deviceInfo) {
-  DEBUG && log("create LegacyTCPControlChannel"); //jshint ignore:line
-  this._deviceInfo = deviceInfo;
-  this._transport = transport;
-
-  this._id = id;
-
-  let currentThread = Services.tm.currentThread;
-  transport.setEventSink(this, currentThread);
-
-  this._input = this._transport.openInputStream(0, 0, 0)
-                               .QueryInterface(Ci.nsIAsyncInputStream);
-  this._input.asyncWait(this.QueryInterface(Ci.nsIStreamListener),
-                        Ci.nsIAsyncInputStream.WAIT_CLOSURE_ONLY,
-                        0,
-                        currentThread);
-
-  this._output = this._transport
-                     .openOutputStream(Ci.nsITransport.OPEN_UNBUFFERED, 0, 0);
-}
-
-LegacyTCPControlChannel.prototype = {
-  _connected: false,
-  _pendingOpen: false,
-  _pendingAnswer: null,
-  _pendingClose: null,
-  _pendingCloseReason: null,
-
-  _sendMessage: function(aJSONData, aOnThrow) {
-    if (!aOnThrow) {
-      aOnThrow = function(e) {throw e.result;};
-    }
-
-    if (!aJSONData) {
-      aOnThrow();
-      return;
-    }
-
-    if (!this._connected) {
-      DEBUG && log("LegacyTCPControlChannel - send" + aJSONData.type + " fails"); //jshint ignore:line
-      throw Cr.NS_ERROR_FAILURE;
-    }
-
-    try {
-      this._send(aJSONData);
-    } catch (e) {
-      aOnThrow(e);
-    }
-  },
-
-  _sendInit: function() {
-    let msg = {
-      type: "requestSession:Init",
-      presentationId: this._presentationId,
-      url: this._url,
-      id: this._id,
-    };
-
-    this._sendMessage(msg, function(e) {
-      this.disconnect();
-      this._notifyDisconnected(e.result);
-    });
-  },
-
-  launch: function(aPresentationId, aUrl) {
-    this._presentationId = aPresentationId;
-    this._url = aUrl;
-
-    this._sendInit();
-  },
-
-  terminate: function() {
-    // Legacy protocol doesn't support extra terminate protocol.
-    // Trigger error handling for browser to shutdown all the resource locally.
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  sendOffer: function(aOffer) {
-    let msg = {
-      type: "requestSession:Offer",
-      presentationId: this._presentationId,
-      offer: discriptionAsJson(aOffer),
-    };
-    this._sendMessage(msg);
-  },
-
-  sendAnswer: function(aAnswer) { //jshint ignore:line
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  sendIceCandidate: function(aCandidate) {
-    let msg = {
-      type: "requestSession:IceCandidate",
-      presentationId: this._presentationId,
-      iceCandidate: aCandidate,
-    };
-    this._sendMessage(msg);
-  },
-  // may throw an exception
-  _send: function(aMsg) {
-    DEBUG && log("LegacyTCPControlChannel - Send: " + JSON.stringify(aMsg, null, 2)); //jshint ignore:line
-
-    /**
-     * XXX In TCP streaming, it is possible that more than one message in one
-     * TCP packet. We use line delimited JSON to identify where one JSON encoded
-     * object ends and the next begins. Therefore, we do not allow newline
-     * characters whithin the whole message, and add a newline at the end.
-     * Please see the parser code in |onDataAvailable|.
-     */
-    let message = JSON.stringify(aMsg).replace(["\n"], "") + "\n";
-    try {
-      this._output.write(message, message.length);
-    } catch(e) {
-      DEBUG && log("LegacyTCPControlChannel - Failed to send message: " + e.name); //jshint ignore:line
-      throw e;
-    }
-  },
-
-  // nsIAsyncInputStream (Triggered by nsIInputStream.asyncWait)
-  // Only used for detecting connection refused
-  onInputStreamReady: function(aStream) {
-    try {
-      aStream.available();
-    } catch (e) {
-      DEBUG && log("LegacyTCPControlChannel - onInputStreamReady error: " + e.name); //jshint ignore:line
-      // NS_ERROR_CONNECTION_REFUSED
-      this._listener.notifyDisconnected(e.result);
-    }
-  },
-
-  // nsITransportEventSink (Triggered by nsISocketTransport.setEventSink)
-  onTransportStatus: function(aTransport, aStatus, aProg, aProgMax) { //jshint ignore:line
-    DEBUG && log("LegacyTCPControlChannel - onTransportStatus: "
-                 + aStatus.toString(16)); //jshint ignore:line
-    if (aStatus === Ci.nsISocketTransport.STATUS_CONNECTED_TO) {
-      this._connected = true;
-
-      if (!this._pump) {
-        this._createInputStreamPump();
-      }
-
-      this._notifyConnected();
-    }
-  },
-
-  // nsIRequestObserver (Triggered by nsIInputStreamPump.asyncRead)
-  onStartRequest: function() {
-    DEBUG && log("LegacyTCPControlChannel - onStartRequest"); //jshint ignore:line
-  },
-
-  // nsIRequestObserver (Triggered by nsIInputStreamPump.asyncRead)
-  onStopRequest: function(aRequest, aContext, aStatus) {
-    DEBUG && log("LegacyTCPControlChannel - onStopRequest: " + aStatus); //jshint ignore:line
-    this.disconnect(aStatus);
-    this._notifyDisconnected(aStatus);
-  },
-
-  // nsIStreamListener (Triggered by nsIInputStreamPump.asyncRead)
-  onDataAvailable: function(aRequest, aContext, aInputStream, aOffset, aCount) { //jshint ignore:line
-    let data = NetUtil.readInputStreamToString(aInputStream,
-                                               aInputStream.available());
-    DEBUG && log("LegacyTCPControlChannel - onDataAvailable: " + data); //jshint ignore:line
-
-    // Parser of line delimited JSON. Please see |_send| for more informaiton.
-    let jsonArray = data.split("\n");
-    jsonArray.pop();
-    for (let json of jsonArray) {
-      let msg;
-      try {
-        msg = JSON.parse(json);
-      } catch (e) {
-        DEBUG && log("LegacyTCPSignalingChannel - error in parsing json: " + e); //jshint ignore:line
-      }
-
-      this._handleMessage(msg);
-    }
-  },
-
-  _createInputStreamPump: function() {
-    DEBUG && log("LegacyTCPControlChannel - create pump"); //jshint ignore:line
-    this._pump = Cc["@mozilla.org/network/input-stream-pump;1"].
-               createInstance(Ci.nsIInputStreamPump);
-    this._pump.init(this._input, -1, -1, 0, 0, false);
-    this._pump.asyncRead(this, null);
-  },
-
-  // Handle command from remote side
-  _handleMessage: function(aMsg) {
-    DEBUG && log("LegacyTCPControlChannel - handleMessage from "
-                 + JSON.stringify(this._deviceInfo) + ": " + JSON.stringify(aMsg)); //jshint ignore:line
-    switch (aMsg.type) {
-      case "requestSession:Answer": {
-        this._onAnswer(aMsg.answer);
-        break;
-      }
-      case "requestSession:IceCandidate": {
-        this._listener.onIceCandidate(aMsg.iceCandidate);
-        break;
-      }
-      case "requestSession:CloseReason": {
-        this._pendingCloseReason = aMsg.reason;
-        break;
-      }
-    }
-  },
-
-  get listener() {
-    return this._listener;
-  },
-
-  set listener(aListener) {
-    DEBUG && log("LegacyTCPControlChannel - set listener: " + aListener); //jshint ignore:line
-    if (!aListener) {
-      this._listener = null;
-      return;
-    }
-
-    this._listener = aListener;
-    if (this._pendingOpen) {
-      this._pendingOpen = false;
-      DEBUG && log("LegacyTCPControlChannel - notify pending opened"); //jshint ignore:line
-      this._listener.notifyConnected();
-    }
-
-    if (this._pendingAnswer) {
-      let answer = this._pendingAnswer;
-      DEBUG && log("LegacyTCPControlChannel - notify pending answer: " +
-                   JSON.stringify(answer)); // jshint ignore:line
-      this._listener.onAnswer(new ChannelDescription(answer));
-      this._pendingAnswer = null;
-    }
-
-    if (this._pendingClose) {
-      DEBUG && log("LegacyTCPControlChannel - notify pending closed"); //jshint ignore:line
-      this._notifyDisconnected(this._pendingCloseReason);
-      this._pendingClose = null;
-    }
-  },
-
-  /**
-   * These functions are designed to handle the interaction with listener
-   * appropriately. |_FUNC| is to handle |this._listener.FUNC|.
-   */
-  _onAnswer: function(aAnswer) {
-    if (!this._connected) {
-      return;
-    }
-    if (!this._listener) {
-      this._pendingAnswer = aAnswer;
-      return;
-    }
-    DEBUG && log("LegacyTCPControlChannel - notify answer: " + JSON.stringify(aAnswer)); //jshint ignore:line
-    this._listener.onAnswer(new ChannelDescription(aAnswer));
-  },
-
-  _notifyConnected: function() {
-    this._connected = true;
-    this._pendingClose = false;
-    this._pendingCloseReason = Cr.NS_OK;
-
-    if (!this._listener) {
-      this._pendingOpen = true;
-      return;
-    }
-
-    DEBUG && log("LegacyTCPControlChannel - notify opened"); //jshint ignore:line
-    this._listener.notifyConnected();
-  },
-
-  _notifyDisconnected: function(aReason) {
-    this._connected = false;
-    this._pendingOpen = false;
-    this._pendingAnswer = null;
-
-    // Remote endpoint closes the control channel with abnormal reason.
-    if (aReason == Cr.NS_OK && this._pendingCloseReason != Cr.NS_OK) {
-      aReason = this._pendingCloseReason;
-    }
-
-    if (!this._listener) {
-      this._pendingClose = true;
-      this._pendingCloseReason = aReason;
-      return;
-    }
-
-    DEBUG && log("LegacyTCPControlChannel - notify closed"); //jshint ignore:line
-    this._listener.notifyDisconnected(aReason);
-  },
-
-  disconnect: function(aReason) {
-    DEBUG && log("LegacyTCPControlChannel - close with reason: " + aReason); //jshint ignore:line
-
-    if (this._connected) {
-      // default reason is NS_OK
-      if (typeof aReason !== "undefined" && aReason !== Cr.NS_OK) {
-        let msg = {
-          type: "requestSession:CloseReason",
-          presentationId: this._presentationId,
-          reason: aReason,
-        };
-        this._sendMessage(msg);
-        this._pendingCloseReason = aReason;
-      }
-
-      this._transport.setEventSink(null, null);
-      this._pump = null;
-
-      this._input.close();
-      this._output.close();
-
-      this._connected = false;
-    }
-  },
-
-  reconnect: function() {
-    // Legacy protocol doesn't support extra reconnect protocol.
-    // Trigger error handling for browser to shutdown all the resource locally.
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  classID: Components.ID("{4027ce3d-06e3-4d06-a235-df329cb0d411}"),
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIPresentationControlChannel,
-                                         Ci.nsIStreamListener]),
-};
-
-this.NSGetFactory = XPCOMUtils.generateNSGetFactory([LegacyPresentationControlService]); //jshint ignore:line
diff --git a/dom/presentation/provider/LegacyProviders.manifest b/dom/presentation/provider/LegacyProviders.manifest
deleted file mode 100644
index 9408da063..000000000
--- a/dom/presentation/provider/LegacyProviders.manifest
+++ /dev/null
@@ -1,2 +0,0 @@
-component {b21816fe-8aff-4811-86d2-85a7444c557e} LegacyPresentationControlService.js
-contract @mozilla.org/presentation/legacy-control-service;1 {b21816fe-8aff-4811-86d2-85a7444c557e}
diff --git a/dom/presentation/provider/MulticastDNSDeviceProvider.cpp b/dom/presentation/provider/MulticastDNSDeviceProvider.cpp
deleted file mode 100644
index 0cab915ac..000000000
--- a/dom/presentation/provider/MulticastDNSDeviceProvider.cpp
+++ /dev/null
@@ -1,1249 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "MulticastDNSDeviceProvider.h"
-
-#include "DeviceProviderHelpers.h"
-#include "MainThreadUtils.h"
-#include "mozilla/Logging.h"
-#include "mozilla/Preferences.h"
-#include "mozilla/Services.h"
-#include "mozilla/Unused.h"
-#include "nsComponentManagerUtils.h"
-#include "nsIObserverService.h"
-#include "nsIWritablePropertyBag2.h"
-#include "nsServiceManagerUtils.h"
-#include "nsTCPDeviceInfo.h"
-#include "nsThreadUtils.h"
-
-#ifdef MOZ_WIDGET_ANDROID
-#include "nsIPropertyBag2.h"
-#endif // MOZ_WIDGET_ANDROID
-
-#define PREF_PRESENTATION_DISCOVERY "dom.presentation.discovery.enabled"
-#define PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS "dom.presentation.discovery.timeout_ms"
-#define PREF_PRESENTATION_DISCOVERABLE "dom.presentation.discoverable"
-#define PREF_PRESENTATION_DISCOVERABLE_ENCRYPTED "dom.presentation.discoverable.encrypted"
-#define PREF_PRESENTATION_DISCOVERABLE_RETRY_MS "dom.presentation.discoverable.retry_ms"
-#define PREF_PRESENTATION_DEVICE_NAME "dom.presentation.device.name"
-
-#define SERVICE_TYPE "_presentation-ctrl._tcp"
-#define PROTOCOL_VERSION_TAG "version"
-#define CERT_FINGERPRINT_TAG "certFingerprint"
-
-static mozilla::LazyLogModule sMulticastDNSProviderLogModule("MulticastDNSDeviceProvider");
-
-#undef LOG_I
-#define LOG_I(...) MOZ_LOG(sMulticastDNSProviderLogModule, mozilla::LogLevel::Debug, (__VA_ARGS__))
-#undef LOG_E
-#define LOG_E(...) MOZ_LOG(sMulticastDNSProviderLogModule, mozilla::LogLevel::Error, (__VA_ARGS__))
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-
-static const char* kObservedPrefs[] = {
-  PREF_PRESENTATION_DISCOVERY,
-  PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS,
-  PREF_PRESENTATION_DISCOVERABLE,
-  PREF_PRESENTATION_DEVICE_NAME,
-  nullptr
-};
-
-namespace {
-
-#ifdef MOZ_WIDGET_ANDROID
-static void
-GetAndroidDeviceName(nsACString& aRetVal)
-{
-  nsCOMPtr<nsIPropertyBag2> infoService = do_GetService("@mozilla.org/system-info;1");
-  MOZ_ASSERT(infoService, "Could not find a system info service");
-
-  Unused << NS_WARN_IF(NS_FAILED(infoService->GetPropertyAsACString(
-                                   NS_LITERAL_STRING("device"), aRetVal)));
-}
-#endif // MOZ_WIDGET_ANDROID
-
-} //anonymous namespace
-
-/**
- * This wrapper is used to break circular-reference problem.
- */
-class DNSServiceWrappedListener final
-  : public nsIDNSServiceDiscoveryListener
-  , public nsIDNSRegistrationListener
-  , public nsIDNSServiceResolveListener
-  , public nsIPresentationControlServerListener
-{
-public:
-  NS_DECL_ISUPPORTS
-  NS_FORWARD_SAFE_NSIDNSSERVICEDISCOVERYLISTENER(mListener)
-  NS_FORWARD_SAFE_NSIDNSREGISTRATIONLISTENER(mListener)
-  NS_FORWARD_SAFE_NSIDNSSERVICERESOLVELISTENER(mListener)
-  NS_FORWARD_SAFE_NSIPRESENTATIONCONTROLSERVERLISTENER(mListener)
-
-  explicit DNSServiceWrappedListener() = default;
-
-  nsresult SetListener(MulticastDNSDeviceProvider* aListener)
-  {
-    mListener = aListener;
-    return NS_OK;
-  }
-
-private:
-  virtual ~DNSServiceWrappedListener() = default;
-
-  MulticastDNSDeviceProvider* mListener = nullptr;
-};
-
-NS_IMPL_ISUPPORTS(DNSServiceWrappedListener,
-                  nsIDNSServiceDiscoveryListener,
-                  nsIDNSRegistrationListener,
-                  nsIDNSServiceResolveListener,
-                  nsIPresentationControlServerListener)
-
-NS_IMPL_ISUPPORTS(MulticastDNSDeviceProvider,
-                  nsIPresentationDeviceProvider,
-                  nsIDNSServiceDiscoveryListener,
-                  nsIDNSRegistrationListener,
-                  nsIDNSServiceResolveListener,
-                  nsIPresentationControlServerListener,
-                  nsIObserver)
-
-MulticastDNSDeviceProvider::~MulticastDNSDeviceProvider()
-{
-  Uninit();
-}
-
-nsresult
-MulticastDNSDeviceProvider::Init()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (mInitialized) {
-    return NS_OK;
-  }
-
-  nsresult rv;
-
-  mMulticastDNS = do_GetService(DNSSERVICEDISCOVERY_CONTRACT_ID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  mWrappedListener = new DNSServiceWrappedListener();
-  if (NS_WARN_IF(NS_FAILED(rv = mWrappedListener->SetListener(this)))) {
-    return rv;
-  }
-
-  mPresentationService = do_CreateInstance(PRESENTATION_CONTROL_SERVICE_CONTACT_ID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  mDiscoveryTimer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  mServerRetryTimer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-  Preferences::AddStrongObservers(this, kObservedPrefs);
-
-  mDiscoveryEnabled = Preferences::GetBool(PREF_PRESENTATION_DISCOVERY);
-  mDiscoveryTimeoutMs = Preferences::GetUint(PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS);
-  mDiscoverable = Preferences::GetBool(PREF_PRESENTATION_DISCOVERABLE);
-  mDiscoverableEncrypted = Preferences::GetBool(PREF_PRESENTATION_DISCOVERABLE_ENCRYPTED);
-  mServerRetryMs = Preferences::GetUint(PREF_PRESENTATION_DISCOVERABLE_RETRY_MS);
-  mServiceName = Preferences::GetCString(PREF_PRESENTATION_DEVICE_NAME);
-
-#ifdef MOZ_WIDGET_ANDROID
-  // FIXME: Bug 1185806 - Provide a common device name setting.
-  if (mServiceName.IsEmpty()) {
-    GetAndroidDeviceName(mServiceName);
-    Unused << Preferences::SetCString(PREF_PRESENTATION_DEVICE_NAME, mServiceName);
-  }
-#endif // MOZ_WIDGET_ANDROID
-
-  Unused << mPresentationService->SetId(mServiceName);
-
-  if (mDiscoveryEnabled && NS_WARN_IF(NS_FAILED(rv = ForceDiscovery()))) {
-    return rv;
-  }
-
-  if (mDiscoverable && NS_WARN_IF(NS_FAILED(rv = StartServer()))) {
-    return rv;
-  }
-
-  mInitialized = true;
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::Uninit()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!mInitialized) {
-    return NS_OK;
-  }
-
-  ClearDevices();
-
-  Preferences::RemoveObservers(this, kObservedPrefs);
-
-  StopDiscovery(NS_OK);
-  StopServer();
-
-  mMulticastDNS = nullptr;
-
-  if (mWrappedListener) {
-    mWrappedListener->SetListener(nullptr);
-    mWrappedListener = nullptr;
-  }
-
-  mInitialized = false;
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::StartServer()
-{
-  LOG_I("StartServer: %s (%d)", mServiceName.get(), mDiscoverable);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!mDiscoverable) {
-    return NS_OK;
-  }
-
-  nsresult rv;
-
-  uint16_t servicePort;
-  if (NS_WARN_IF(NS_FAILED(rv = mPresentationService->GetPort(&servicePort)))) {
-    return rv;
-  }
-
-  /**
-    * If |servicePort| is non-zero, it means PresentationControlService is running.
-    * Otherwise, we should make it start serving.
-    */
-  if (servicePort) {
-    return RegisterMDNSService();
-  }
-
-  if (NS_WARN_IF(NS_FAILED(rv = mPresentationService->SetListener(mWrappedListener)))) {
-    return rv;
-  }
-
-  AbortServerRetry();
-
-  if (NS_WARN_IF(NS_FAILED(rv = mPresentationService->StartServer(mDiscoverableEncrypted, 0)))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::StopServer()
-{
-  LOG_I("StopServer: %s", mServiceName.get());
-  MOZ_ASSERT(NS_IsMainThread());
-
-  UnregisterMDNSService(NS_OK);
-
-  AbortServerRetry();
-
-  if (mPresentationService) {
-    mPresentationService->SetListener(nullptr);
-    mPresentationService->Close();
-  }
-
-  return NS_OK;
-}
-
-void
-MulticastDNSDeviceProvider::AbortServerRetry()
-{
-  if (mIsServerRetrying) {
-    mIsServerRetrying = false;
-    mServerRetryTimer->Cancel();
-  }
-}
-
-nsresult
-MulticastDNSDeviceProvider::RegisterMDNSService()
-{
-  LOG_I("RegisterMDNSService: %s", mServiceName.get());
-
-  if (!mDiscoverable) {
-    return NS_OK;
-  }
-
-  // Cancel on going service registration.
-  UnregisterMDNSService(NS_OK);
-
-  nsresult rv;
-
-  uint16_t servicePort;
-  if (NS_FAILED(rv = mPresentationService->GetPort(&servicePort)) ||
-      !servicePort) {
-    // Abort service registration if server port is not available.
-    return rv;
-  }
-
-  /**
-   * Register the presentation control channel server as an mDNS service.
-   */
-  nsCOMPtr<nsIDNSServiceInfo> serviceInfo =
-    do_CreateInstance(DNSSERVICEINFO_CONTRACT_ID, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-  if (NS_WARN_IF(NS_FAILED(rv = serviceInfo->SetServiceType(
-      NS_LITERAL_CSTRING(SERVICE_TYPE))))) {
-    return rv;
-  }
-  if (NS_WARN_IF(NS_FAILED(rv = serviceInfo->SetServiceName(mServiceName)))) {
-    return rv;
-  }
-  if (NS_WARN_IF(NS_FAILED(rv = serviceInfo->SetPort(servicePort)))) {
-    return rv;
-  }
-
-  nsCOMPtr<nsIWritablePropertyBag2> propBag =
-    do_CreateInstance("@mozilla.org/hash-property-bag;1");
-  MOZ_ASSERT(propBag);
-
-  uint32_t version;
-  rv = mPresentationService->GetVersion(&version);
-  MOZ_ASSERT(NS_SUCCEEDED(rv));
-
-  rv = propBag->SetPropertyAsUint32(NS_LITERAL_STRING(PROTOCOL_VERSION_TAG),
-                                    version);
-  MOZ_ASSERT(NS_SUCCEEDED(rv));
-
-  if (mDiscoverableEncrypted) {
-    nsAutoCString certFingerprint;
-    rv = mPresentationService->GetCertFingerprint(certFingerprint);
-    MOZ_ASSERT(NS_SUCCEEDED(rv));
-
-    rv = propBag->SetPropertyAsACString(NS_LITERAL_STRING(CERT_FINGERPRINT_TAG),
-                                        certFingerprint);
-    MOZ_ASSERT(NS_SUCCEEDED(rv));
-  }
-
-  if (NS_WARN_IF(NS_FAILED(rv = serviceInfo->SetAttributes(propBag)))) {
-    return rv;
-  }
-
-  return mMulticastDNS->RegisterService(serviceInfo,
-                                        mWrappedListener,
-                                        getter_AddRefs(mRegisterRequest));
-}
-
-nsresult
-MulticastDNSDeviceProvider::UnregisterMDNSService(nsresult aReason)
-{
-  LOG_I("UnregisterMDNSService: %s (0x%08x)", mServiceName.get(), aReason);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (mRegisterRequest) {
-    mRegisterRequest->Cancel(aReason);
-    mRegisterRequest = nullptr;
-  }
-
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::StopDiscovery(nsresult aReason)
-{
-  LOG_I("StopDiscovery (0x%08x)", aReason);
-
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mDiscoveryTimer);
-
-  Unused << mDiscoveryTimer->Cancel();
-
-  if (mDiscoveryRequest) {
-    mDiscoveryRequest->Cancel(aReason);
-    mDiscoveryRequest = nullptr;
-  }
-
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::Connect(Device* aDevice,
-                                    nsIPresentationControlChannel** aRetVal)
-{
-  MOZ_ASSERT(aDevice);
-  MOZ_ASSERT(mPresentationService);
-
-  RefPtr<TCPDeviceInfo> deviceInfo = new TCPDeviceInfo(aDevice->Id(),
-                                                       aDevice->Address(),
-                                                       aDevice->Port(),
-                                                       aDevice->CertFingerprint());
-
-  return mPresentationService->Connect(deviceInfo, aRetVal);
-}
-
-bool
-MulticastDNSDeviceProvider::IsCompatibleServer(nsIDNSServiceInfo* aServiceInfo)
-{
-  MOZ_ASSERT(aServiceInfo);
-
-  nsCOMPtr<nsIPropertyBag2> propBag;
-  if (NS_WARN_IF(NS_FAILED(
-          aServiceInfo->GetAttributes(getter_AddRefs(propBag)))) || !propBag) {
-    return false;
-  }
-
-  uint32_t remoteVersion;
-  if (NS_WARN_IF(NS_FAILED(
-          propBag->GetPropertyAsUint32(NS_LITERAL_STRING(PROTOCOL_VERSION_TAG),
-                                       &remoteVersion)))) {
-    return false;
-  }
-
-  bool isCompatible = false;
-  Unused << NS_WARN_IF(NS_FAILED(
-                mPresentationService->IsCompatibleServer(remoteVersion,
-                                                         &isCompatible)));
-
-  return isCompatible;
-}
-
-nsresult
-MulticastDNSDeviceProvider::AddDevice(const nsACString& aId,
-                                      const nsACString& aServiceName,
-                                      const nsACString& aServiceType,
-                                      const nsACString& aAddress,
-                                      const uint16_t aPort,
-                                      const nsACString& aCertFingerprint)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mPresentationService);
-
-  RefPtr<Device> device = new Device(aId, /* ID */
-                                     aServiceName,
-                                     aServiceType,
-                                     aAddress,
-                                     aPort,
-                                     aCertFingerprint,
-                                     DeviceState::eActive,
-                                     this);
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->AddDevice(device);
-  }
-
-  mDevices.AppendElement(device);
-
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::UpdateDevice(const uint32_t aIndex,
-                                         const nsACString& aServiceName,
-                                         const nsACString& aServiceType,
-                                         const nsACString& aAddress,
-                                         const uint16_t aPort,
-                                         const nsACString& aCertFingerprint)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mPresentationService);
-
-  if (NS_WARN_IF(aIndex >= mDevices.Length())) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  RefPtr<Device> device = mDevices[aIndex];
-  device->Update(aServiceName, aServiceType, aAddress, aPort, aCertFingerprint);
-  device->ChangeState(DeviceState::eActive);
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->UpdateDevice(device);
-  }
-
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::RemoveDevice(const uint32_t aIndex)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mPresentationService);
-
-  if (NS_WARN_IF(aIndex >= mDevices.Length())) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  RefPtr<Device> device = mDevices[aIndex];
-
-  LOG_I("RemoveDevice: %s", device->Id().get());
-  mDevices.RemoveElementAt(aIndex);
-
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->RemoveDevice(device);
-  }
-
-  return NS_OK;
-}
-
-bool
-MulticastDNSDeviceProvider::FindDeviceById(const nsACString& aId,
-                                           uint32_t& aIndex)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  RefPtr<Device> device = new Device(aId,
-                                     /* aName = */ EmptyCString(),
-                                     /* aType = */ EmptyCString(),
-                                     /* aHost = */ EmptyCString(),
-                                     /* aPort = */ 0,
-                                     /* aCertFingerprint */ EmptyCString(),
-                                     /* aState = */ DeviceState::eUnknown,
-                                     /* aProvider = */ nullptr);
-  size_t index = mDevices.IndexOf(device, 0, DeviceIdComparator());
-
-  if (index == mDevices.NoIndex) {
-    return false;
-  }
-
-  aIndex = index;
-  return true;
-}
-
-bool
-MulticastDNSDeviceProvider::FindDeviceByAddress(const nsACString& aAddress,
-                                                uint32_t& aIndex)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  RefPtr<Device> device = new Device(/* aId = */ EmptyCString(),
-                                     /* aName = */ EmptyCString(),
-                                     /* aType = */ EmptyCString(),
-                                     aAddress,
-                                     /* aPort = */ 0,
-                                     /* aCertFingerprint */ EmptyCString(),
-                                     /* aState = */ DeviceState::eUnknown,
-                                     /* aProvider = */ nullptr);
-  size_t index = mDevices.IndexOf(device, 0, DeviceAddressComparator());
-
-  if (index == mDevices.NoIndex) {
-    return false;
-  }
-
-  aIndex = index;
-  return true;
-}
-
-void
-MulticastDNSDeviceProvider::MarkAllDevicesUnknown()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  for (auto& device : mDevices) {
-    device->ChangeState(DeviceState::eUnknown);
-  }
-}
-
-void
-MulticastDNSDeviceProvider::ClearUnknownDevices()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  size_t i = mDevices.Length();
-  while (i > 0) {
-    --i;
-    if (mDevices[i]->State() == DeviceState::eUnknown) {
-      Unused << NS_WARN_IF(NS_FAILED(RemoveDevice(i)));
-    }
-  }
-}
-
-void
-MulticastDNSDeviceProvider::ClearDevices()
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  size_t i = mDevices.Length();
-  while (i > 0) {
-    --i;
-    Unused << NS_WARN_IF(NS_FAILED(RemoveDevice(i)));
-  }
-}
-
-// nsIPresentationDeviceProvider
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::GetListener(nsIPresentationDeviceListener** aListener)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aListener)) {
-    return NS_ERROR_INVALID_POINTER;
-  }
-
-  nsresult rv;
-  nsCOMPtr<nsIPresentationDeviceListener> listener =
-    do_QueryReferent(mDeviceListener, &rv);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  listener.forget(aListener);
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::SetListener(nsIPresentationDeviceListener* aListener)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mDeviceListener = do_GetWeakReference(aListener);
-
-  nsresult rv;
-  if (mDeviceListener) {
-    if (NS_WARN_IF(NS_FAILED(rv = Init()))) {
-      return rv;
-    }
-  } else {
-    if (NS_WARN_IF(NS_FAILED(rv = Uninit()))) {
-      return rv;
-    }
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::ForceDiscovery()
-{
-  LOG_I("ForceDiscovery (%d)", mDiscoveryEnabled);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!mDiscoveryEnabled) {
-    return NS_OK;
-  }
-
-  MOZ_ASSERT(mDiscoveryTimer);
-  MOZ_ASSERT(mMulticastDNS);
-
-  // if it's already discovering, extend existing discovery timeout.
-  nsresult rv;
-  if (mIsDiscovering) {
-    Unused << mDiscoveryTimer->Cancel();
-
-    if (NS_WARN_IF(NS_FAILED( rv = mDiscoveryTimer->Init(this,
-        mDiscoveryTimeoutMs,
-        nsITimer::TYPE_ONE_SHOT)))) {
-        return rv;
-    }
-    return NS_OK;
-  }
-
-  StopDiscovery(NS_OK);
-
-  if (NS_WARN_IF(NS_FAILED(rv = mMulticastDNS->StartDiscovery(
-      NS_LITERAL_CSTRING(SERVICE_TYPE),
-      mWrappedListener,
-      getter_AddRefs(mDiscoveryRequest))))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-// nsIDNSServiceDiscoveryListener
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnDiscoveryStarted(const nsACString& aServiceType)
-{
-  LOG_I("OnDiscoveryStarted");
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(mDiscoveryTimer);
-
-  MarkAllDevicesUnknown();
-
-  nsresult rv;
-  if (NS_WARN_IF(NS_FAILED(rv = mDiscoveryTimer->Init(this,
-                                                      mDiscoveryTimeoutMs,
-                                                      nsITimer::TYPE_ONE_SHOT)))) {
-    return rv;
-  }
-
-  mIsDiscovering = true;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnDiscoveryStopped(const nsACString& aServiceType)
-{
-  LOG_I("OnDiscoveryStopped");
-  MOZ_ASSERT(NS_IsMainThread());
-
-  ClearUnknownDevices();
-
-  mIsDiscovering = false;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnServiceFound(nsIDNSServiceInfo* aServiceInfo)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aServiceInfo)) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  nsresult rv ;
-
-  nsAutoCString serviceName;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceName(serviceName)))) {
-    return rv;
-  }
-
-  LOG_I("OnServiceFound: %s", serviceName.get());
-
-  if (mMulticastDNS) {
-    if (NS_WARN_IF(NS_FAILED(rv = mMulticastDNS->ResolveService(
-        aServiceInfo, mWrappedListener)))) {
-      return rv;
-    }
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnServiceLost(nsIDNSServiceInfo* aServiceInfo)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aServiceInfo)) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  nsresult rv;
-
-  nsAutoCString serviceName;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceName(serviceName)))) {
-    return rv;
-  }
-
-  LOG_I("OnServiceLost: %s", serviceName.get());
-
-  nsAutoCString host;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetHost(host)))) {
-    return rv;
-  }
-
-  uint32_t index;
-  if (!FindDeviceById(host, index)) {
-    // given device was not found
-    return NS_OK;
-  }
-
-  if (NS_WARN_IF(NS_FAILED(rv = RemoveDevice(index)))) {
-    return rv;
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnStartDiscoveryFailed(const nsACString& aServiceType,
-                                                   int32_t aErrorCode)
-{
-  LOG_E("OnStartDiscoveryFailed: %d", aErrorCode);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnStopDiscoveryFailed(const nsACString& aServiceType,
-                                                  int32_t aErrorCode)
-{
-  LOG_E("OnStopDiscoveryFailed: %d", aErrorCode);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  return NS_OK;
-}
-
-// nsIDNSRegistrationListener
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnServiceRegistered(nsIDNSServiceInfo* aServiceInfo)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aServiceInfo)) {
-    return NS_ERROR_INVALID_ARG;
-  }
-  nsresult rv;
-
-  nsAutoCString name;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceName(name)))) {
-    return rv;
-  }
-
-  LOG_I("OnServiceRegistered (%s)",  name.get());
-  mRegisteredName = name;
-
-  if (mMulticastDNS) {
-    if (NS_WARN_IF(NS_FAILED(rv = mMulticastDNS->ResolveService(
-        aServiceInfo, mWrappedListener)))) {
-      return rv;
-    }
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnServiceUnregistered(nsIDNSServiceInfo* aServiceInfo)
-{
-  LOG_I("OnServiceUnregistered");
-  MOZ_ASSERT(NS_IsMainThread());
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnRegistrationFailed(nsIDNSServiceInfo* aServiceInfo,
-                                                 int32_t aErrorCode)
-{
-  LOG_E("OnRegistrationFailed: %d", aErrorCode);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mRegisterRequest = nullptr;
-
-  if (aErrorCode == nsIDNSRegistrationListener::ERROR_SERVICE_NOT_RUNNING) {
-    return NS_DispatchToMainThread(
-             NewRunnableMethod(this, &MulticastDNSDeviceProvider::RegisterMDNSService));
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnUnregistrationFailed(nsIDNSServiceInfo* aServiceInfo,
-                                                   int32_t aErrorCode)
-{
-  LOG_E("OnUnregistrationFailed: %d", aErrorCode);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  return NS_OK;
-}
-
-// nsIDNSServiceResolveListener
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnServiceResolved(nsIDNSServiceInfo* aServiceInfo)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (NS_WARN_IF(!aServiceInfo)) {
-    return NS_ERROR_INVALID_ARG;
-  }
-
-  nsresult rv;
-
-  nsAutoCString serviceName;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceName(serviceName)))) {
-    return rv;
-  }
-
-  LOG_I("OnServiceResolved: %s", serviceName.get());
-
-  nsAutoCString host;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetHost(host)))) {
-    return rv;
-  }
-
-  if (mRegisteredName == serviceName) {
-    LOG_I("ignore self");
-
-    if (NS_WARN_IF(NS_FAILED(rv = mPresentationService->SetId(host)))) {
-      return rv;
-    }
-
-    return NS_OK;
-  }
-
-  if (!IsCompatibleServer(aServiceInfo)) {
-    LOG_I("ignore incompatible service: %s", serviceName.get());
-    return NS_OK;
-  }
-
-  nsAutoCString address;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetAddress(address)))) {
-    return rv;
-  }
-
-  uint16_t port;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetPort(&port)))) {
-    return rv;
-  }
-
-  nsAutoCString serviceType;
-  if (NS_WARN_IF(NS_FAILED(rv = aServiceInfo->GetServiceType(serviceType)))) {
-    return rv;
-  }
-
-  nsCOMPtr<nsIPropertyBag2> propBag;
-  if (NS_WARN_IF(NS_FAILED(
-          aServiceInfo->GetAttributes(getter_AddRefs(propBag)))) || !propBag) {
-    return rv;
-  }
-
-  nsAutoCString certFingerprint;
-  Unused << propBag->GetPropertyAsACString(NS_LITERAL_STRING(CERT_FINGERPRINT_TAG),
-                                           certFingerprint);
-
-  uint32_t index;
-  if (FindDeviceById(host, index)) {
-    return UpdateDevice(index,
-                        serviceName,
-                        serviceType,
-                        address,
-                        port,
-                        certFingerprint);
-  } else {
-    return AddDevice(host,
-                     serviceName,
-                     serviceType,
-                     address,
-                     port,
-                     certFingerprint);
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnResolveFailed(nsIDNSServiceInfo* aServiceInfo,
-                                            int32_t aErrorCode)
-{
-  LOG_E("OnResolveFailed: %d", aErrorCode);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  return NS_OK;
-}
-
-// nsIPresentationControlServerListener
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnServerReady(uint16_t aPort,
-                                          const nsACString& aCertFingerprint)
-{
-  LOG_I("OnServerReady: %d, %s", aPort, PromiseFlatCString(aCertFingerprint).get());
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (mDiscoverable) {
-    RegisterMDNSService();
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnServerStopped(nsresult aResult)
-{
-  LOG_I("OnServerStopped: (0x%08x)", aResult);
-
-  UnregisterMDNSService(aResult);
-
-  // Try restart server if it is stopped abnormally.
-  if (NS_FAILED(aResult) && mDiscoverable) {
-    mIsServerRetrying = true;
-    mServerRetryTimer->Init(this, mServerRetryMs, nsITimer::TYPE_ONE_SHOT);
-  }
-
-  return NS_OK;
-}
-
-// Create a new device if we were unable to find one with the address.
-already_AddRefed<MulticastDNSDeviceProvider::Device>
-MulticastDNSDeviceProvider::GetOrCreateDevice(nsITCPDeviceInfo* aDeviceInfo)
-{
-  nsAutoCString address;
-  Unused << aDeviceInfo->GetAddress(address);
-
-  RefPtr<Device> device;
-  uint32_t index;
-  if (FindDeviceByAddress(address, index)) {
-    device = mDevices[index];
-  } else {
-    // Create a one-time device object for non-discoverable controller.
-    // This device will not be in the list of available devices and cannot
-    // be used for requesting session.
-    nsAutoCString id;
-    Unused << aDeviceInfo->GetId(id);
-    uint16_t port;
-    Unused << aDeviceInfo->GetPort(&port);
-
-    device = new Device(id,
-                        /* aName = */ id,
-                        /* aType = */ EmptyCString(),
-                        address,
-                        port,
-                        /* aCertFingerprint */ EmptyCString(),
-                        DeviceState::eActive,
-                        /* aProvider = */ nullptr);
-  }
-
-  return device.forget();
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnSessionRequest(nsITCPDeviceInfo* aDeviceInfo,
-                                             const nsAString& aUrl,
-                                             const nsAString& aPresentationId,
-                                             nsIPresentationControlChannel* aControlChannel)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  nsAutoCString address;
-  Unused << aDeviceInfo->GetAddress(address);
-
-  LOG_I("OnSessionRequest: %s", address.get());
-
-  RefPtr<Device> device = GetOrCreateDevice(aDeviceInfo);
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->OnSessionRequest(device, aUrl, aPresentationId,
-                                         aControlChannel);
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnTerminateRequest(nsITCPDeviceInfo* aDeviceInfo,
-                                               const nsAString& aPresentationId,
-                                               nsIPresentationControlChannel* aControlChannel,
-                                               bool aIsFromReceiver)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  nsAutoCString address;
-  Unused << aDeviceInfo->GetAddress(address);
-
-  LOG_I("OnTerminateRequest: %s", address.get());
-
-  RefPtr<Device> device = GetOrCreateDevice(aDeviceInfo);
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->OnTerminateRequest(device, aPresentationId,
-                                           aControlChannel, aIsFromReceiver);
-  }
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::OnReconnectRequest(nsITCPDeviceInfo* aDeviceInfo,
-                                               const nsAString& aUrl,
-                                               const nsAString& aPresentationId,
-                                               nsIPresentationControlChannel* aControlChannel)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  nsAutoCString address;
-  Unused << aDeviceInfo->GetAddress(address);
-
-  LOG_I("OnReconnectRequest: %s", address.get());
-
-  RefPtr<Device> device = GetOrCreateDevice(aDeviceInfo);
-  nsCOMPtr<nsIPresentationDeviceListener> listener;
-  if (NS_SUCCEEDED(GetListener(getter_AddRefs(listener))) && listener) {
-    Unused << listener->OnReconnectRequest(device, aUrl, aPresentationId,
-                                           aControlChannel);
-  }
-
-  return NS_OK;
-}
-
-// nsIObserver
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::Observe(nsISupports* aSubject,
-                                    const char* aTopic,
-                                    const char16_t* aData)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  NS_ConvertUTF16toUTF8 data(aData);
-  LOG_I("Observe: topic = %s, data = %s", aTopic, data.get());
-
-  if (!strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID)) {
-    if (data.EqualsLiteral(PREF_PRESENTATION_DISCOVERY)) {
-      OnDiscoveryChanged(Preferences::GetBool(PREF_PRESENTATION_DISCOVERY));
-    } else if (data.EqualsLiteral(PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS)) {
-      OnDiscoveryTimeoutChanged(Preferences::GetUint(PREF_PRESENTATION_DISCOVERY_TIMEOUT_MS));
-    } else if (data.EqualsLiteral(PREF_PRESENTATION_DISCOVERABLE)) {
-      OnDiscoverableChanged(Preferences::GetBool(PREF_PRESENTATION_DISCOVERABLE));
-    } else if (data.EqualsLiteral(PREF_PRESENTATION_DEVICE_NAME)) {
-      nsAdoptingCString newServiceName = Preferences::GetCString(PREF_PRESENTATION_DEVICE_NAME);
-      if (!mServiceName.Equals(newServiceName)) {
-        OnServiceNameChanged(newServiceName);
-      }
-    }
-  } else if (!strcmp(aTopic, NS_TIMER_CALLBACK_TOPIC)) {
-    nsCOMPtr<nsITimer> timer = do_QueryInterface(aSubject);
-    if (!timer) {
-      return NS_ERROR_UNEXPECTED;
-    }
-
-    if (timer == mDiscoveryTimer) {
-      StopDiscovery(NS_OK);
-    } else if (timer == mServerRetryTimer) {
-      mIsServerRetrying = false;
-      StartServer();
-    }
-  }
-
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::OnDiscoveryChanged(bool aEnabled)
-{
-  LOG_I("DiscoveryEnabled = %d\n", aEnabled);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mDiscoveryEnabled = aEnabled;
-
-  if (mDiscoveryEnabled) {
-    return ForceDiscovery();
-  }
-
-  return StopDiscovery(NS_OK);
-}
-
-nsresult
-MulticastDNSDeviceProvider::OnDiscoveryTimeoutChanged(uint32_t aTimeoutMs)
-{
-  LOG_I("OnDiscoveryTimeoutChanged = %d\n", aTimeoutMs);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mDiscoveryTimeoutMs = aTimeoutMs;
-
-  return NS_OK;
-}
-
-nsresult
-MulticastDNSDeviceProvider::OnDiscoverableChanged(bool aEnabled)
-{
-  LOG_I("Discoverable = %d\n", aEnabled);
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mDiscoverable = aEnabled;
-
-  if (mDiscoverable) {
-    return StartServer();
-  }
-
-  return StopServer();
-}
-
-nsresult
-MulticastDNSDeviceProvider::OnServiceNameChanged(const nsACString& aServiceName)
-{
-  LOG_I("serviceName = %s\n", PromiseFlatCString(aServiceName).get());
-  MOZ_ASSERT(NS_IsMainThread());
-
-  mServiceName = aServiceName;
-
-  nsresult rv;
-  if (NS_WARN_IF(NS_FAILED(rv = UnregisterMDNSService(NS_OK)))) {
-    return rv;
-  }
-
-  if (mDiscoverable) {
-    return RegisterMDNSService();
-  }
-
-  return NS_OK;
-}
-
-// MulticastDNSDeviceProvider::Device
-NS_IMPL_ISUPPORTS(MulticastDNSDeviceProvider::Device,
-                  nsIPresentationDevice)
-
-// nsIPresentationDevice
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::Device::GetId(nsACString& aId)
-{
-  aId = mId;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::Device::GetName(nsACString& aName)
-{
-  aName = mName;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::Device::GetType(nsACString& aType)
-{
-  aType = mType;
-
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::Device::EstablishControlChannel(
-                                        nsIPresentationControlChannel** aRetVal)
-{
-  if (!mProvider) {
-    return NS_ERROR_FAILURE;
-  }
-
-  return mProvider->Connect(this, aRetVal);
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::Device::Disconnect()
-{
-  // No need to do anything when disconnect.
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-MulticastDNSDeviceProvider::Device::IsRequestedUrlSupported(
-                                                 const nsAString& aRequestedUrl,
-                                                 bool* aRetVal)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!aRetVal) {
-    return NS_ERROR_INVALID_POINTER;
-  }
-
-  // TV 2.6 also supports presentation Apps and HTTP/HTTPS hosted receiver page.
-  if (DeviceProviderHelpers::IsFxTVSupportedAppUrl(aRequestedUrl) ||
-      DeviceProviderHelpers::IsCommonlySupportedScheme(aRequestedUrl)) {
-    *aRetVal = true;
-  }
-
-  return NS_OK;
-}
-
-} // namespace presentation
-} // namespace dom
-} // namespace mozilla
diff --git a/dom/presentation/provider/MulticastDNSDeviceProvider.h b/dom/presentation/provider/MulticastDNSDeviceProvider.h
deleted file mode 100644
index c6a91b3d8..000000000
--- a/dom/presentation/provider/MulticastDNSDeviceProvider.h
+++ /dev/null
@@ -1,225 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef mozilla_dom_presentation_provider_MulticastDNSDeviceProvider_h
-#define mozilla_dom_presentation_provider_MulticastDNSDeviceProvider_h
-
-#include "mozilla/RefPtr.h"
-#include "nsCOMPtr.h"
-#include "nsICancelable.h"
-#include "nsIDNSServiceDiscovery.h"
-#include "nsIObserver.h"
-#include "nsIPresentationDevice.h"
-#include "nsIPresentationDeviceProvider.h"
-#include "nsIPresentationControlService.h"
-#include "nsITimer.h"
-#include "nsString.h"
-#include "nsTArray.h"
-#include "nsWeakPtr.h"
-
-class nsITCPDeviceInfo;
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-
-class DNSServiceWrappedListener;
-class MulticastDNSService;
-
-class MulticastDNSDeviceProvider final
-  : public nsIPresentationDeviceProvider
-  , public nsIDNSServiceDiscoveryListener
-  , public nsIDNSRegistrationListener
-  , public nsIDNSServiceResolveListener
-  , public nsIPresentationControlServerListener
-  , public nsIObserver
-{
-public:
-  NS_DECL_ISUPPORTS
-  NS_DECL_NSIPRESENTATIONDEVICEPROVIDER
-  NS_DECL_NSIDNSSERVICEDISCOVERYLISTENER
-  NS_DECL_NSIDNSREGISTRATIONLISTENER
-  NS_DECL_NSIDNSSERVICERESOLVELISTENER
-  NS_DECL_NSIPRESENTATIONCONTROLSERVERLISTENER
-  NS_DECL_NSIOBSERVER
-
-  explicit MulticastDNSDeviceProvider() = default;
-  nsresult Init();
-  nsresult Uninit();
-
-private:
-  enum class DeviceState : uint32_t {
-    eUnknown,
-    eActive
-  };
-
-  class Device final : public nsIPresentationDevice
-  {
-  public:
-    NS_DECL_ISUPPORTS
-    NS_DECL_NSIPRESENTATIONDEVICE
-
-    explicit Device(const nsACString& aId,
-                    const nsACString& aName,
-                    const nsACString& aType,
-                    const nsACString& aAddress,
-                    const uint16_t aPort,
-                    const nsACString& aCertFingerprint,
-                    DeviceState aState,
-                    MulticastDNSDeviceProvider* aProvider)
-      : mId(aId)
-      , mName(aName)
-      , mType(aType)
-      , mAddress(aAddress)
-      , mPort(aPort)
-      , mCertFingerprint(aCertFingerprint)
-      , mState(aState)
-      , mProvider(aProvider)
-    {
-    }
-
-    const nsCString& Id() const
-    {
-      return mId;
-    }
-
-    const nsCString& Address() const
-    {
-      return mAddress;
-    }
-
-    uint16_t Port() const
-    {
-      return mPort;
-    }
-
-    const nsCString& CertFingerprint() const
-    {
-      return mCertFingerprint;
-    }
-
-    DeviceState State() const
-    {
-      return mState;
-    }
-
-    void ChangeState(DeviceState aState)
-    {
-      mState = aState;
-    }
-
-    void Update(const nsACString& aName,
-                const nsACString& aType,
-                const nsACString& aAddress,
-                const uint16_t aPort,
-                const nsACString& aCertFingerprint)
-    {
-      mName = aName;
-      mType = aType;
-      mAddress = aAddress;
-      mPort = aPort;
-      mCertFingerprint = aCertFingerprint;
-    }
-
-  private:
-    virtual ~Device() = default;
-
-    nsCString mId;
-    nsCString mName;
-    nsCString mType;
-    nsCString mAddress;
-    uint16_t mPort;
-    nsCString mCertFingerprint;
-    DeviceState mState;
-    MulticastDNSDeviceProvider* mProvider;
-  };
-
-  struct DeviceIdComparator {
-    bool Equals(const RefPtr<Device>& aA, const RefPtr<Device>& aB) const {
-      return aA->Id() == aB->Id();
-    }
-  };
-
-  struct DeviceAddressComparator {
-    bool Equals(const RefPtr<Device>& aA, const RefPtr<Device>& aB) const {
-      return aA->Address() == aB->Address();
-    }
-  };
-
-  virtual ~MulticastDNSDeviceProvider();
-  nsresult StartServer();
-  nsresult StopServer();
-  void AbortServerRetry();
-  nsresult RegisterMDNSService();
-  nsresult UnregisterMDNSService(nsresult aReason);
-  nsresult StopDiscovery(nsresult aReason);
-  nsresult Connect(Device* aDevice,
-                   nsIPresentationControlChannel** aRetVal);
-  bool IsCompatibleServer(nsIDNSServiceInfo* aServiceInfo);
-
-  // device manipulation
-  nsresult AddDevice(const nsACString& aId,
-                     const nsACString& aServiceName,
-                     const nsACString& aServiceType,
-                     const nsACString& aAddress,
-                     const uint16_t aPort,
-                     const nsACString& aCertFingerprint);
-  nsresult UpdateDevice(const uint32_t aIndex,
-                        const nsACString& aServiceName,
-                        const nsACString& aServiceType,
-                        const nsACString& aAddress,
-                        const uint16_t aPort,
-                        const nsACString& aCertFingerprint);
-  nsresult RemoveDevice(const uint32_t aIndex);
-  bool FindDeviceById(const nsACString& aId,
-                      uint32_t& aIndex);
-
-  bool FindDeviceByAddress(const nsACString& aAddress,
-                           uint32_t& aIndex);
-
-  already_AddRefed<Device>
-  GetOrCreateDevice(nsITCPDeviceInfo* aDeviceInfo);
-
-  void MarkAllDevicesUnknown();
-  void ClearUnknownDevices();
-  void ClearDevices();
-
-  // preferences
-  nsresult OnDiscoveryChanged(bool aEnabled);
-  nsresult OnDiscoveryTimeoutChanged(uint32_t aTimeoutMs);
-  nsresult OnDiscoverableChanged(bool aEnabled);
-  nsresult OnServiceNameChanged(const nsACString& aServiceName);
-
-  bool mInitialized = false;
-  nsWeakPtr mDeviceListener;
-  nsCOMPtr<nsIPresentationControlService> mPresentationService;
-  nsCOMPtr<nsIDNSServiceDiscovery> mMulticastDNS;
-  RefPtr<DNSServiceWrappedListener> mWrappedListener;
-
-  nsCOMPtr<nsICancelable> mDiscoveryRequest;
-  nsCOMPtr<nsICancelable> mRegisterRequest;
-
-  nsTArray<RefPtr<Device>> mDevices;
-
-  bool mDiscoveryEnabled = false;
-  bool mIsDiscovering = false;
-  uint32_t mDiscoveryTimeoutMs;
-  nsCOMPtr<nsITimer> mDiscoveryTimer;
-
-  bool mDiscoverable = false;
-  bool mDiscoverableEncrypted = false;
-  bool mIsServerRetrying = false;
-  uint32_t mServerRetryMs;
-  nsCOMPtr<nsITimer> mServerRetryTimer;
-
-  nsCString mServiceName;
-  nsCString mRegisteredName;
-};
-
-} // namespace presentation
-} // namespace dom
-} // namespace mozilla
-
-#endif // mozilla_dom_presentation_provider_MulticastDNSDeviceProvider_h
diff --git a/dom/presentation/provider/PresentationControlService.js b/dom/presentation/provider/PresentationControlService.js
deleted file mode 100644
index e9f92247f..000000000
--- a/dom/presentation/provider/PresentationControlService.js
+++ /dev/null
@@ -1,960 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* jshint esnext:true, globalstrict:true, moz:true, undef:true, unused:true */
-/* globals Components, dump */
-"use strict";
-
-const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
-
-/* globals XPCOMUtils */
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-/* globals Services */
-Cu.import("resource://gre/modules/Services.jsm");
-/* globals NetUtil */
-Cu.import("resource://gre/modules/NetUtil.jsm");
-/* globals setTimeout, clearTimeout */
-Cu.import("resource://gre/modules/Timer.jsm");
-
-/* globals ControllerStateMachine */
-XPCOMUtils.defineLazyModuleGetter(this, "ControllerStateMachine", // jshint ignore:line
-                                  "resource://gre/modules/presentation/ControllerStateMachine.jsm");
-/* global ReceiverStateMachine */
-XPCOMUtils.defineLazyModuleGetter(this, "ReceiverStateMachine", // jshint ignore:line
-                                  "resource://gre/modules/presentation/ReceiverStateMachine.jsm");
-
-const kProtocolVersion = 1; // need to review isCompatibleServer while fiddling the version number.
-const kLocalCertName = "presentation";
-
-const DEBUG = Services.prefs.getBoolPref("dom.presentation.tcp_server.debug");
-function log(aMsg) {
-  dump("-*- PresentationControlService.js: " + aMsg + "\n");
-}
-
-function TCPDeviceInfo(aAddress, aPort, aId, aCertFingerprint) {
-  this.address = aAddress;
-  this.port = aPort;
-  this.id = aId;
-  this.certFingerprint = aCertFingerprint || "";
-}
-
-function PresentationControlService() {
-  this._id = null;
-  this._port = 0;
-  this._serverSocket = null;
-}
-
-PresentationControlService.prototype = {
-  /**
-   * If a user agent connects to this server, we create a control channel but
-   * hand it to |TCPDevice.listener| when the initial information exchange
-   * finishes. Therefore, we hold the control channels in this period.
-   */
-  _controlChannels: [],
-
-  startServer: function(aEncrypted, aPort) {
-    if (this._isServiceInit()) {
-      DEBUG && log("PresentationControlService - server socket has been initialized");  // jshint ignore:line
-      throw Cr.NS_ERROR_FAILURE;
-    }
-
-    /**
-     * 0 or undefined indicates opt-out parameter, and a port will be selected
-     * automatically.
-     */
-    let serverSocketPort = (typeof aPort !== "undefined" && aPort !== 0) ? aPort : -1;
-
-    if (aEncrypted) {
-      let self = this;
-      let localCertService = Cc["@mozilla.org/security/local-cert-service;1"]
-                               .getService(Ci.nsILocalCertService);
-      localCertService.getOrCreateCert(kLocalCertName, {
-        handleCert: function(aCert, aRv) {
-          DEBUG && log("PresentationControlService - handleCert");  // jshint ignore:line
-          if (aRv) {
-            self._notifyServerStopped(aRv);
-          } else {
-            self._serverSocket = Cc["@mozilla.org/network/tls-server-socket;1"]
-                                   .createInstance(Ci.nsITLSServerSocket);
-
-            self._serverSocketInit(serverSocketPort, aCert);
-          }
-        }
-      });
-    } else {
-      this._serverSocket = Cc["@mozilla.org/network/server-socket;1"]
-                             .createInstance(Ci.nsIServerSocket);
-
-      this._serverSocketInit(serverSocketPort, null);
-    }
-  },
-
-  _serverSocketInit: function(aPort, aCert) {
-    if (!this._serverSocket) {
-      DEBUG && log("PresentationControlService - create server socket fail."); // jshint ignore:line
-      throw Cr.NS_ERROR_FAILURE;
-    }
-
-    try {
-      this._serverSocket.init(aPort, false, -1);
-
-      if (aCert) {
-        this._serverSocket.serverCert = aCert;
-        this._serverSocket.setSessionTickets(false);
-        let requestCert = Ci.nsITLSServerSocket.REQUEST_NEVER;
-        this._serverSocket.setRequestClientCertificate(requestCert);
-      }
-
-      this._serverSocket.asyncListen(this);
-    } catch (e) {
-      // NS_ERROR_SOCKET_ADDRESS_IN_USE
-      DEBUG && log("PresentationControlService - init server socket fail: " + e); // jshint ignore:line
-      throw Cr.NS_ERROR_FAILURE;
-    }
-
-    this._port = this._serverSocket.port;
-
-    DEBUG && log("PresentationControlService - service start on port: " + this._port); // jshint ignore:line
-
-    // Monitor network interface change to restart server socket.
-    Services.obs.addObserver(this, "network:offline-status-changed", false);
-
-    this._notifyServerReady();
-  },
-
-  _notifyServerReady: function() {
-    Services.tm.mainThread.dispatch(() => {
-      if (this._listener) {
-        this._listener.onServerReady(this._port, this.certFingerprint);
-      }
-    }, Ci.nsIThread.DISPATCH_NORMAL);
-  },
-
-  _notifyServerStopped: function(aRv) {
-    Services.tm.mainThread.dispatch(() => {
-      if (this._listener) {
-        this._listener.onServerStopped(aRv);
-      }
-    }, Ci.nsIThread.DISPATCH_NORMAL);
-  },
-
-  isCompatibleServer: function(aVersion) {
-    // No compatibility issue for the first version of control protocol
-    return this.version === aVersion;
-  },
-
-  get id() {
-    return this._id;
-  },
-
-  set id(aId) {
-    this._id = aId;
-  },
-
-  get port() {
-    return this._port;
-  },
-
-  get version() {
-    return kProtocolVersion;
-  },
-
-  get certFingerprint() {
-    if (!this._serverSocket.serverCert) {
-      return null;
-    }
-
-    return this._serverSocket.serverCert.sha256Fingerprint;
-  },
-
-  set listener(aListener) {
-    this._listener = aListener;
-  },
-
-  get listener() {
-    return this._listener;
-  },
-
-  _isServiceInit: function() {
-    return this._serverSocket !== null;
-  },
-
-  connect: function(aDeviceInfo) {
-    if (!this.id) {
-      DEBUG && log("PresentationControlService - Id has not initialized; connect fails"); // jshint ignore:line
-      return null;
-    }
-    DEBUG && log("PresentationControlService - connect to " + aDeviceInfo.id); // jshint ignore:line
-
-    let socketTransport = this._attemptConnect(aDeviceInfo);
-    return new TCPControlChannel(this,
-                                 socketTransport,
-                                 aDeviceInfo,
-                                 "sender");
-  },
-
-  _attemptConnect: function(aDeviceInfo) {
-    let sts = Cc["@mozilla.org/network/socket-transport-service;1"]
-                .getService(Ci.nsISocketTransportService);
-
-    let socketTransport;
-    try {
-      if (aDeviceInfo.certFingerprint) {
-        let overrideService = Cc["@mozilla.org/security/certoverride;1"]
-                                .getService(Ci.nsICertOverrideService);
-        overrideService.rememberTemporaryValidityOverrideUsingFingerprint(
-            aDeviceInfo.address,
-            aDeviceInfo.port,
-            aDeviceInfo.certFingerprint,
-            Ci.nsICertOverrideService.ERROR_UNTRUSTED | Ci.nsICertOverrideService.ERROR_MISMATCH);
-
-        socketTransport = sts.createTransport(["ssl"],
-                                              1,
-                                              aDeviceInfo.address,
-                                              aDeviceInfo.port,
-                                              null);
-      } else {
-        socketTransport = sts.createTransport(null,
-                                              0,
-                                              aDeviceInfo.address,
-                                              aDeviceInfo.port,
-                                              null);
-      }
-      // Shorten the connection failure procedure.
-      socketTransport.setTimeout(Ci.nsISocketTransport.TIMEOUT_CONNECT, 2);
-    } catch (e) {
-      DEBUG && log("PresentationControlService - createTransport throws: " + e);  // jshint ignore:line
-      // Pop the exception to |TCPDevice.establishControlChannel|
-      throw Cr.NS_ERROR_FAILURE;
-    }
-    return socketTransport;
-  },
-
-  responseSession: function(aDeviceInfo, aSocketTransport) {
-    if (!this._isServiceInit()) {
-      DEBUG && log("PresentationControlService - should never receive remote " +
-                   "session request before server socket initialization"); // jshint ignore:line
-      return null;
-    }
-    DEBUG && log("PresentationControlService - responseSession to " +
-                 JSON.stringify(aDeviceInfo)); // jshint ignore:line
-    return new TCPControlChannel(this,
-                                 aSocketTransport,
-                                 aDeviceInfo,
-                                 "receiver");
-  },
-
-  // Triggered by TCPControlChannel
-  onSessionRequest: function(aDeviceInfo, aUrl, aPresentationId, aControlChannel) {
-    DEBUG && log("PresentationControlService - onSessionRequest: " +
-                 aDeviceInfo.address + ":" + aDeviceInfo.port); // jshint ignore:line
-    if (!this.listener) {
-      this.releaseControlChannel(aControlChannel);
-      return;
-    }
-
-    this.listener.onSessionRequest(aDeviceInfo,
-                                   aUrl,
-                                   aPresentationId,
-                                   aControlChannel);
-    this.releaseControlChannel(aControlChannel);
-  },
-
-  onSessionTerminate: function(aDeviceInfo, aPresentationId, aControlChannel, aIsFromReceiver) {
-    DEBUG && log("TCPPresentationServer - onSessionTerminate: " +
-                 aDeviceInfo.address + ":" + aDeviceInfo.port); // jshint ignore:line
-    if (!this.listener) {
-      this.releaseControlChannel(aControlChannel);
-      return;
-    }
-
-    this.listener.onTerminateRequest(aDeviceInfo,
-                                     aPresentationId,
-                                     aControlChannel,
-                                     aIsFromReceiver);
-    this.releaseControlChannel(aControlChannel);
-  },
-
-  onSessionReconnect: function(aDeviceInfo, aUrl, aPresentationId, aControlChannel) {
-    DEBUG && log("TCPPresentationServer - onSessionReconnect: " +
-                 aDeviceInfo.address + ":" + aDeviceInfo.port); // jshint ignore:line
-    if (!this.listener) {
-      this.releaseControlChannel(aControlChannel);
-      return;
-    }
-
-    this.listener.onReconnectRequest(aDeviceInfo,
-                                     aUrl,
-                                     aPresentationId,
-                                     aControlChannel);
-    this.releaseControlChannel(aControlChannel);
-  },
-
-  // nsIServerSocketListener (Triggered by nsIServerSocket.init)
-  onSocketAccepted: function(aServerSocket, aClientSocket) {
-    DEBUG && log("PresentationControlService - onSocketAccepted: " +
-                 aClientSocket.host + ":" + aClientSocket.port); // jshint ignore:line
-    let deviceInfo = new TCPDeviceInfo(aClientSocket.host, aClientSocket.port);
-    this.holdControlChannel(this.responseSession(deviceInfo, aClientSocket));
-  },
-
-  holdControlChannel: function(aControlChannel) {
-    this._controlChannels.push(aControlChannel);
-  },
-
-  releaseControlChannel: function(aControlChannel) {
-    let index = this._controlChannels.indexOf(aControlChannel);
-    if (index !== -1) {
-      delete this._controlChannels[index];
-    }
-  },
-
-  // nsIServerSocketListener (Triggered by nsIServerSocket.init)
-  onStopListening: function(aServerSocket, aStatus) {
-    DEBUG && log("PresentationControlService - onStopListening: " + aStatus); // jshint ignore:line
-  },
-
-  close: function() {
-    DEBUG && log("PresentationControlService - close"); // jshint ignore:line
-    if (this._isServiceInit()) {
-      DEBUG && log("PresentationControlService - close server socket"); // jshint ignore:line
-      this._serverSocket.close();
-      this._serverSocket = null;
-
-      Services.obs.removeObserver(this, "network:offline-status-changed");
-
-      this._notifyServerStopped(Cr.NS_OK);
-    }
-    this._port = 0;
-  },
-
-  // nsIObserver
-  observe: function(aSubject, aTopic, aData) {
-    DEBUG && log("PresentationControlService - observe: " + aTopic); // jshint ignore:line
-    switch (aTopic) {
-      case "network:offline-status-changed": {
-        if (aData == "offline") {
-          DEBUG && log("network offline"); // jshint ignore:line
-          return;
-        }
-        this._restartServer();
-        break;
-      }
-    }
-  },
-
-  _restartServer: function() {
-    DEBUG && log("PresentationControlService - restart service"); // jshint ignore:line
-
-    // restart server socket
-    if (this._isServiceInit()) {
-      this.close();
-
-      try {
-        this.startServer();
-      } catch (e) {
-        DEBUG && log("PresentationControlService - restart service fail: " + e); // jshint ignore:line
-      }
-    }
-  },
-
-  classID: Components.ID("{f4079b8b-ede5-4b90-a112-5b415a931deb}"),
-  QueryInterface : XPCOMUtils.generateQI([Ci.nsIServerSocketListener,
-                                          Ci.nsIPresentationControlService,
-                                          Ci.nsIObserver]),
-};
-
-function ChannelDescription(aInit) {
-  this._type = aInit.type;
-  switch (this._type) {
-    case Ci.nsIPresentationChannelDescription.TYPE_TCP:
-      this._tcpAddresses = Cc["@mozilla.org/array;1"]
-                           .createInstance(Ci.nsIMutableArray);
-      for (let address of aInit.tcpAddress) {
-        let wrapper = Cc["@mozilla.org/supports-cstring;1"]
-                      .createInstance(Ci.nsISupportsCString);
-        wrapper.data = address;
-        this._tcpAddresses.appendElement(wrapper, false);
-      }
-
-      this._tcpPort = aInit.tcpPort;
-      break;
-    case Ci.nsIPresentationChannelDescription.TYPE_DATACHANNEL:
-      this._dataChannelSDP = aInit.dataChannelSDP;
-      break;
-  }
-}
-
-ChannelDescription.prototype = {
-  _type: 0,
-  _tcpAddresses: null,
-  _tcpPort: 0,
-  _dataChannelSDP: "",
-
-  get type() {
-    return this._type;
-  },
-
-  get tcpAddress() {
-    return this._tcpAddresses;
-  },
-
-  get tcpPort() {
-    return this._tcpPort;
-  },
-
-  get dataChannelSDP() {
-    return this._dataChannelSDP;
-  },
-
-  classID: Components.ID("{82507aea-78a2-487e-904a-858a6c5bf4e1}"),
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIPresentationChannelDescription]),
-};
-
-// Helper function: transfer nsIPresentationChannelDescription to json
-function discriptionAsJson(aDescription) {
-  let json = {};
-  json.type = aDescription.type;
-  switch(aDescription.type) {
-    case Ci.nsIPresentationChannelDescription.TYPE_TCP:
-      let addresses = aDescription.tcpAddress.QueryInterface(Ci.nsIArray);
-      json.tcpAddress = [];
-      for (let idx = 0; idx < addresses.length; idx++) {
-        let address = addresses.queryElementAt(idx, Ci.nsISupportsCString);
-        json.tcpAddress.push(address.data);
-      }
-      json.tcpPort = aDescription.tcpPort;
-      break;
-    case Ci.nsIPresentationChannelDescription.TYPE_DATACHANNEL:
-      json.dataChannelSDP = aDescription.dataChannelSDP;
-      break;
-  }
-  return json;
-}
-
-const kDisconnectTimeout = 5000;
-const kTerminateTimeout = 5000;
-
-function TCPControlChannel(presentationService,
-                           transport,
-                           deviceInfo,
-                           direction) {
-  DEBUG && log("create TCPControlChannel for : " + direction); // jshint ignore:line
-  this._deviceInfo = deviceInfo;
-  this._direction = direction;
-  this._transport = transport;
-
-  this._presentationService = presentationService;
-
-  if (direction === "receiver") {
-    // Need to set security observer before I/O stream operation.
-    this._setSecurityObserver(this);
-  }
-
-  let currentThread = Services.tm.currentThread;
-  transport.setEventSink(this, currentThread);
-
-  this._input = this._transport.openInputStream(0, 0, 0)
-                               .QueryInterface(Ci.nsIAsyncInputStream);
-  this._input.asyncWait(this.QueryInterface(Ci.nsIStreamListener),
-                        Ci.nsIAsyncInputStream.WAIT_CLOSURE_ONLY,
-                        0,
-                        currentThread);
-
-  this._output = this._transport
-                     .openOutputStream(Ci.nsITransport.OPEN_UNBUFFERED, 0, 0)
-                     .QueryInterface(Ci.nsIAsyncOutputStream);
-
-  this._outgoingMsgs = [];
-
-
-  this._stateMachine =
-    (direction === "sender") ? new ControllerStateMachine(this, presentationService.id)
-                             : new ReceiverStateMachine(this);
-
-  if (direction === "receiver" && !transport.securityInfo) {
-    // Since the transport created by server socket is already CONNECTED_TO.
-    this._outgoingEnabled = true;
-    this._createInputStreamPump();
-  }
-}
-
-TCPControlChannel.prototype = {
-  _outgoingEnabled: false,
-  _incomingEnabled: false,
-  _pendingOpen: false,
-  _pendingOffer: null,
-  _pendingAnswer: null,
-  _pendingClose: null,
-  _pendingCloseReason: null,
-  _pendingReconnect: false,
-
-  sendOffer: function(aOffer) {
-    this._stateMachine.sendOffer(discriptionAsJson(aOffer));
-  },
-
-  sendAnswer: function(aAnswer) {
-    this._stateMachine.sendAnswer(discriptionAsJson(aAnswer));
-  },
-
-  sendIceCandidate: function(aCandidate) {
-    this._stateMachine.updateIceCandidate(aCandidate);
-  },
-
-  launch: function(aPresentationId, aUrl) {
-    this._stateMachine.launch(aPresentationId, aUrl);
-  },
-
-  terminate: function(aPresentationId) {
-    if (!this._terminatingId) {
-      this._terminatingId = aPresentationId;
-      this._stateMachine.terminate(aPresentationId);
-
-      // Start a guard timer to ensure terminateAck is processed.
-      this._terminateTimer = setTimeout(() => {
-        DEBUG && log("TCPControlChannel - terminate timeout: " + aPresentationId); // jshint ignore:line
-        delete this._terminateTimer;
-        if (this._pendingDisconnect) {
-          this._pendingDisconnect();
-        } else {
-          this.disconnect(Cr.NS_OK);
-        }
-      }, kTerminateTimeout);
-    } else {
-      this._stateMachine.terminateAck(aPresentationId);
-      delete this._terminatingId;
-    }
-  },
-
-  _flushOutgoing: function() {
-    if (!this._outgoingEnabled || this._outgoingMsgs.length === 0) {
-      return;
-    }
-
-    this._output.asyncWait(this, 0, 0, Services.tm.currentThread);
-  },
-
-  // may throw an exception
-  _send: function(aMsg) {
-    DEBUG && log("TCPControlChannel - Send: " + JSON.stringify(aMsg, null, 2)); // jshint ignore:line
-
-    /**
-     * XXX In TCP streaming, it is possible that more than one message in one
-     * TCP packet. We use line delimited JSON to identify where one JSON encoded
-     * object ends and the next begins. Therefore, we do not allow newline
-     * characters whithin the whole message, and add a newline at the end.
-     * Please see the parser code in |onDataAvailable|.
-     */
-    let message = JSON.stringify(aMsg).replace(["\n"], "") + "\n";
-    try {
-      this._output.write(message, message.length);
-    } catch(e) {
-      DEBUG && log("TCPControlChannel - Failed to send message: " + e.name); // jshint ignore:line
-      throw e;
-    }
-  },
-
-  _setSecurityObserver: function(observer) {
-    if (this._transport && this._transport.securityInfo) {
-      DEBUG && log("TCPControlChannel - setSecurityObserver: " + observer); // jshint ignore:line
-      let connectionInfo = this._transport.securityInfo
-                               .QueryInterface(Ci.nsITLSServerConnectionInfo);
-      connectionInfo.setSecurityObserver(observer);
-    }
-  },
-
-  // nsITLSServerSecurityObserver
-  onHandshakeDone: function(socket, clientStatus) {
-    log("TCPControlChannel - onHandshakeDone: TLS version: " + clientStatus.tlsVersionUsed.toString(16));
-    this._setSecurityObserver(null);
-
-    // Process input/output after TLS handshake is complete.
-    this._outgoingEnabled = true;
-    this._createInputStreamPump();
-  },
-
-  // nsIAsyncOutputStream
-  onOutputStreamReady: function() {
-    DEBUG && log("TCPControlChannel - onOutputStreamReady"); // jshint ignore:line
-    if (this._outgoingMsgs.length === 0) {
-      return;
-    }
-
-    try {
-      this._send(this._outgoingMsgs[0]);
-    } catch (e) {
-      if (e.result === Cr.NS_BASE_STREAM_WOULD_BLOCK) {
-        this._output.asyncWait(this, 0, 0, Services.tm.currentThread);
-        return;
-      }
-
-      this._closeTransport();
-      return;
-    }
-    this._outgoingMsgs.shift();
-    this._flushOutgoing();
-  },
-
-  // nsIAsyncInputStream (Triggered by nsIInputStream.asyncWait)
-  // Only used for detecting connection refused
-  onInputStreamReady: function(aStream) {
-    DEBUG && log("TCPControlChannel - onInputStreamReady"); // jshint ignore:line
-    try {
-      aStream.available();
-    } catch (e) {
-      DEBUG && log("TCPControlChannel - onInputStreamReady error: " + e.name); // jshint ignore:line
-      // NS_ERROR_CONNECTION_REFUSED
-      this._notifyDisconnected(e.result);
-    }
-  },
-
-  // nsITransportEventSink (Triggered by nsISocketTransport.setEventSink)
-  onTransportStatus: function(aTransport, aStatus) {
-    DEBUG && log("TCPControlChannel - onTransportStatus: " + aStatus.toString(16) +
-                 " with role: " + this._direction); // jshint ignore:line
-    if (aStatus === Ci.nsISocketTransport.STATUS_CONNECTED_TO) {
-      this._outgoingEnabled = true;
-      this._createInputStreamPump();
-    }
-  },
-
-  // nsIRequestObserver (Triggered by nsIInputStreamPump.asyncRead)
-  onStartRequest: function() {
-    DEBUG && log("TCPControlChannel - onStartRequest with role: " +
-                 this._direction); // jshint ignore:line
-    this._incomingEnabled = true;
-  },
-
-  // nsIRequestObserver (Triggered by nsIInputStreamPump.asyncRead)
-  onStopRequest: function(aRequest, aContext, aStatus) {
-    DEBUG && log("TCPControlChannel - onStopRequest: " + aStatus +
-                 " with role: " + this._direction); // jshint ignore:line
-    this._stateMachine.onChannelClosed(aStatus, true);
-  },
-
-  // nsIStreamListener (Triggered by nsIInputStreamPump.asyncRead)
-  onDataAvailable: function(aRequest, aContext, aInputStream) {
-    let data = NetUtil.readInputStreamToString(aInputStream,
-                                               aInputStream.available());
-    DEBUG && log("TCPControlChannel - onDataAvailable: " + data); // jshint ignore:line
-
-    // Parser of line delimited JSON. Please see |_send| for more informaiton.
-    let jsonArray = data.split("\n");
-    jsonArray.pop();
-    for (let json of jsonArray) {
-      let msg;
-      try {
-        msg = JSON.parse(json);
-      } catch (e) {
-        DEBUG && log("TCPSignalingChannel - error in parsing json: " + e); // jshint ignore:line
-      }
-
-      this._handleMessage(msg);
-    }
-  },
-
-  _createInputStreamPump: function() {
-    if (this._pump) {
-      return;
-    }
-
-    DEBUG && log("TCPControlChannel - create pump with role: " +
-                 this._direction); // jshint ignore:line
-    this._pump = Cc["@mozilla.org/network/input-stream-pump;1"].
-               createInstance(Ci.nsIInputStreamPump);
-    this._pump.init(this._input, -1, -1, 0, 0, false);
-    this._pump.asyncRead(this, null);
-    this._stateMachine.onChannelReady();
-  },
-
-  // Handle command from remote side
-  _handleMessage: function(aMsg) {
-    DEBUG && log("TCPControlChannel - handleMessage from " +
-                 JSON.stringify(this._deviceInfo) + ": " + JSON.stringify(aMsg)); // jshint ignore:line
-    this._stateMachine.onCommand(aMsg);
-  },
-
-  get listener() {
-    return this._listener;
-  },
-
-  set listener(aListener) {
-    DEBUG && log("TCPControlChannel - set listener: " + aListener); // jshint ignore:line
-    if (!aListener) {
-      this._listener = null;
-      return;
-    }
-
-    this._listener = aListener;
-    if (this._pendingOpen) {
-      this._pendingOpen = false;
-      DEBUG && log("TCPControlChannel - notify pending opened"); // jshint ignore:line
-      this._listener.notifyConnected();
-    }
-
-    if (this._pendingOffer) {
-      let offer = this._pendingOffer;
-      DEBUG && log("TCPControlChannel - notify pending offer: " +
-                   JSON.stringify(offer)); // jshint ignore:line
-      this._listener.onOffer(new ChannelDescription(offer));
-      this._pendingOffer = null;
-    }
-
-    if (this._pendingAnswer) {
-      let answer = this._pendingAnswer;
-      DEBUG && log("TCPControlChannel - notify pending answer: " +
-                   JSON.stringify(answer)); // jshint ignore:line
-      this._listener.onAnswer(new ChannelDescription(answer));
-      this._pendingAnswer = null;
-    }
-
-    if (this._pendingClose) {
-      DEBUG && log("TCPControlChannel - notify pending closed"); // jshint ignore:line
-      this._notifyDisconnected(this._pendingCloseReason);
-      this._pendingClose = null;
-    }
-
-    if (this._pendingReconnect) {
-      DEBUG && log("TCPControlChannel - notify pending reconnected"); // jshint ignore:line
-      this._notifyReconnected();
-      this._pendingReconnect = false;
-    }
-  },
-
-  /**
-   * These functions are designed to handle the interaction with listener
-   * appropriately. |_FUNC| is to handle |this._listener.FUNC|.
-   */
-  _onOffer: function(aOffer) {
-    if (!this._incomingEnabled) {
-      return;
-    }
-    if (!this._listener) {
-      this._pendingOffer = aOffer;
-      return;
-    }
-    DEBUG && log("TCPControlChannel - notify offer: " +
-                 JSON.stringify(aOffer)); // jshint ignore:line
-    this._listener.onOffer(new ChannelDescription(aOffer));
-  },
-
-  _onAnswer: function(aAnswer) {
-    if (!this._incomingEnabled) {
-      return;
-    }
-    if (!this._listener) {
-      this._pendingAnswer = aAnswer;
-      return;
-    }
-    DEBUG && log("TCPControlChannel - notify answer: " +
-                 JSON.stringify(aAnswer)); // jshint ignore:line
-    this._listener.onAnswer(new ChannelDescription(aAnswer));
-  },
-
-  _notifyConnected: function() {
-    this._pendingClose = false;
-    this._pendingCloseReason = Cr.NS_OK;
-
-    if (!this._listener) {
-      this._pendingOpen = true;
-      return;
-    }
-
-    DEBUG && log("TCPControlChannel - notify opened with role: " +
-                 this._direction); // jshint ignore:line
-    this._listener.notifyConnected();
-  },
-
-  _notifyDisconnected: function(aReason) {
-    this._pendingOpen = false;
-    this._pendingOffer = null;
-    this._pendingAnswer = null;
-
-    // Remote endpoint closes the control channel with abnormal reason.
-    if (aReason == Cr.NS_OK && this._pendingCloseReason != Cr.NS_OK) {
-      aReason = this._pendingCloseReason;
-    }
-
-    if (!this._listener) {
-      this._pendingClose = true;
-      this._pendingCloseReason = aReason;
-      return;
-    }
-
-    DEBUG && log("TCPControlChannel - notify closed with role: " +
-                 this._direction); // jshint ignore:line
-    this._listener.notifyDisconnected(aReason);
-  },
-
-  _notifyReconnected: function() {
-    if (!this._listener) {
-      this._pendingReconnect = true;
-      return;
-    }
-
-    DEBUG && log("TCPControlChannel - notify reconnected with role: " +
-                 this._direction); // jshint ignore:line
-    this._listener.notifyReconnected();
-  },
-
-  _closeOutgoing: function() {
-    if (this._outgoingEnabled) {
-      this._output.close();
-      this._outgoingEnabled = false;
-    }
-  },
-  _closeIncoming: function() {
-    if (this._incomingEnabled) {
-      this._pump = null;
-      this._input.close();
-      this._incomingEnabled = false;
-    }
-  },
-  _closeTransport: function() {
-    if (this._disconnectTimer) {
-      clearTimeout(this._disconnectTimer);
-      delete this._disconnectTimer;
-    }
-
-    if (this._terminateTimer) {
-      clearTimeout(this._terminateTimer);
-      delete this._terminateTimer;
-    }
-
-    delete this._pendingDisconnect;
-
-    this._transport.setEventSink(null, null);
-
-    this._closeIncoming();
-    this._closeOutgoing();
-    this._presentationService.releaseControlChannel(this);
-  },
-
-  disconnect: function(aReason) {
-    DEBUG && log("TCPControlChannel - disconnect with reason: " + aReason); // jshint ignore:line
-
-    // Pending disconnect during termination procedure.
-    if (this._terminateTimer) {
-      // Store only the first disconnect action.
-      if (!this._pendingDisconnect) {
-        this._pendingDisconnect = this.disconnect.bind(this, aReason);
-      }
-      return;
-    }
-
-    if (this._outgoingEnabled && !this._disconnectTimer) {
-      // default reason is NS_OK
-      aReason = !aReason ? Cr.NS_OK : aReason;
-
-      this._stateMachine.onChannelClosed(aReason, false);
-
-      // Start a guard timer to ensure the transport will be closed.
-      this._disconnectTimer = setTimeout(() => {
-        DEBUG && log("TCPControlChannel - disconnect timeout"); // jshint ignore:line
-        this._closeTransport();
-      }, kDisconnectTimeout);
-    }
-  },
-
-  reconnect: function(aPresentationId, aUrl) {
-    DEBUG && log("TCPControlChannel - reconnect with role: " +
-                 this._direction); // jshint ignore:line
-    if (this._direction != "sender") {
-      return Cr.NS_ERROR_FAILURE;
-    }
-
-    this._stateMachine.reconnect(aPresentationId, aUrl);
-  },
-
-  // callback from state machine
-  sendCommand: function(command) {
-    this._outgoingMsgs.push(command);
-    this._flushOutgoing();
-  },
-
-  notifyDeviceConnected: function(deviceId) {
-    switch (this._direction) {
-      case "receiver":
-        this._deviceInfo.id = deviceId;
-        break;
-    }
-    this._notifyConnected();
-  },
-
-  notifyDisconnected: function(reason) {
-    this._closeTransport();
-    this._notifyDisconnected(reason);
-  },
-
-  notifyLaunch: function(presentationId, url) {
-    switch (this._direction) {
-      case "receiver":
-        this._presentationService.onSessionRequest(this._deviceInfo,
-                                                   url,
-                                                   presentationId,
-                                                   this);
-      break;
-    }
-  },
-
-  notifyTerminate: function(presentationId) {
-    if (!this._terminatingId) {
-      this._terminatingId = presentationId;
-      this._presentationService.onSessionTerminate(this._deviceInfo,
-                                                   presentationId,
-                                                   this,
-                                                   this._direction === "sender");
-      return;
-    }
-
-    // Cancel terminate guard timer after receiving terminate-ack.
-    if (this._terminateTimer) {
-      clearTimeout(this._terminateTimer);
-      delete this._terminateTimer;
-    }
-
-    if (this._terminatingId !== presentationId) {
-      // Requested presentation Id doesn't matched with the one in ACK.
-      // Disconnect the control channel with error.
-      DEBUG && log("TCPControlChannel - unmatched terminatingId: " + presentationId); // jshint ignore:line
-      this.disconnect(Cr.NS_ERROR_FAILURE);
-    }
-
-    delete this._terminatingId;
-    if (this._pendingDisconnect) {
-      this._pendingDisconnect();
-    }
-  },
-
-  notifyReconnect: function(presentationId, url) {
-    switch (this._direction) {
-      case "receiver":
-        this._presentationService.onSessionReconnect(this._deviceInfo,
-                                                     url,
-                                                     presentationId,
-                                                     this);
-        break;
-      case "sender":
-        this._notifyReconnected();
-        break;
-    }
-  },
-
-  notifyOffer: function(offer) {
-    this._onOffer(offer);
-  },
-
-  notifyAnswer: function(answer) {
-    this._onAnswer(answer);
-  },
-
-  notifyIceCandidate: function(candidate) {
-    this._listener.onIceCandidate(candidate);
-  },
-
-  classID: Components.ID("{fefb8286-0bdc-488b-98bf-0c11b485c955}"),
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIPresentationControlChannel,
-                                         Ci.nsIStreamListener]),
-};
-
-this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PresentationControlService]); // jshint ignore:line
diff --git a/dom/presentation/provider/PresentationDeviceProviderModule.cpp b/dom/presentation/provider/PresentationDeviceProviderModule.cpp
deleted file mode 100644
index 9c084e7db..000000000
--- a/dom/presentation/provider/PresentationDeviceProviderModule.cpp
+++ /dev/null
@@ -1,87 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "DisplayDeviceProvider.h"
-#include "MulticastDNSDeviceProvider.h"
-#include "mozilla/ModuleUtils.h"
-
-#ifdef MOZ_WIDGET_ANDROID
-#include "LegacyMDNSDeviceProvider.h"
-#endif //MOZ_WIDGET_ANDROID
-
-#define MULTICAST_DNS_PROVIDER_CID \
-  {0x814f947a, 0x52f7, 0x41c9, \
-    { 0x94, 0xa1, 0x36, 0x84, 0x79, 0x72, 0x84, 0xac }}
-#define DISPLAY_DEVICE_PROVIDER_CID \
-  { 0x515d9879, 0xfe0b, 0x4d9f, \
-    { 0x89, 0x49, 0x7f, 0xa7, 0x65, 0x6c, 0x01, 0x0e } }
-
-#ifdef MOZ_WIDGET_ANDROID
-#define LEGACY_MDNS_PROVIDER_CID \
-  { 0x6885ff39, 0xd98c, 0x4356, \
-    { 0x9e, 0xb3, 0x56, 0x56, 0x31, 0x63, 0x0a, 0xf6 } }
-#endif //MOZ_WIDGET_ANDROID
-
-#define DISPLAY_DEVICE_PROVIDER_CONTRACT_ID "@mozilla.org/presentation-device/displaydevice-provider;1"
-#define MULTICAST_DNS_PROVIDER_CONTRACT_ID "@mozilla.org/presentation-device/multicastdns-provider;1"
-
-#ifdef MOZ_WIDGET_ANDROID
-#define LEGACY_MDNS_PROVIDER_CONTRACT_ID "@mozilla.org/presentation-device/legacy-mdns-provider;1"
-#endif //MOZ_WIDGET_ANDROID
-
-using mozilla::dom::presentation::MulticastDNSDeviceProvider;
-using mozilla::dom::presentation::DisplayDeviceProvider;
-
-#ifdef MOZ_WIDGET_ANDROID
-using mozilla::dom::presentation::legacy::LegacyMDNSDeviceProvider;
-#endif //MOZ_WIDGET_ANDROID
-
-NS_GENERIC_FACTORY_CONSTRUCTOR(MulticastDNSDeviceProvider)
-NS_DEFINE_NAMED_CID(MULTICAST_DNS_PROVIDER_CID);
-
-NS_GENERIC_FACTORY_CONSTRUCTOR(DisplayDeviceProvider)
-NS_DEFINE_NAMED_CID(DISPLAY_DEVICE_PROVIDER_CID);
-
-#ifdef MOZ_WIDGET_ANDROID
-NS_GENERIC_FACTORY_CONSTRUCTOR(LegacyMDNSDeviceProvider)
-NS_DEFINE_NAMED_CID(LEGACY_MDNS_PROVIDER_CID);
-#endif //MOZ_WIDGET_ANDROID
-
-static const mozilla::Module::CIDEntry kPresentationDeviceProviderCIDs[] = {
-  { &kMULTICAST_DNS_PROVIDER_CID, false, nullptr, MulticastDNSDeviceProviderConstructor },
-  { &kDISPLAY_DEVICE_PROVIDER_CID, false, nullptr, DisplayDeviceProviderConstructor },
-#ifdef MOZ_WIDGET_ANDROID
-  { &kLEGACY_MDNS_PROVIDER_CID, false, nullptr, LegacyMDNSDeviceProviderConstructor },
-#endif //MOZ_WIDGET_ANDROID
-  { nullptr }
-};
-
-static const mozilla::Module::ContractIDEntry kPresentationDeviceProviderContracts[] = {
-  { MULTICAST_DNS_PROVIDER_CONTRACT_ID, &kMULTICAST_DNS_PROVIDER_CID },
-  { DISPLAY_DEVICE_PROVIDER_CONTRACT_ID, &kDISPLAY_DEVICE_PROVIDER_CID },
-#ifdef MOZ_WIDGET_ANDROID
-  { LEGACY_MDNS_PROVIDER_CONTRACT_ID, &kLEGACY_MDNS_PROVIDER_CID },
-#endif //MOZ_WIDGET_ANDROID
-  { nullptr }
-};
-
-static const mozilla::Module::CategoryEntry kPresentationDeviceProviderCategories[] = {
-#if defined(MOZ_WIDGET_COCOA) || defined(MOZ_WIDGET_ANDROID)
-  { PRESENTATION_DEVICE_PROVIDER_CATEGORY, "MulticastDNSDeviceProvider", MULTICAST_DNS_PROVIDER_CONTRACT_ID },
-#endif
-#ifdef MOZ_WIDGET_ANDROID
-  { PRESENTATION_DEVICE_PROVIDER_CATEGORY, "LegacyMDNSDeviceProvider", LEGACY_MDNS_PROVIDER_CONTRACT_ID },
-#endif //MOZ_WIDGET_ANDROID
-  { nullptr }
-};
-
-static const mozilla::Module kPresentationDeviceProviderModule = {
-  mozilla::Module::kVersion,
-  kPresentationDeviceProviderCIDs,
-  kPresentationDeviceProviderContracts,
-  kPresentationDeviceProviderCategories
-};
-
-NSMODULE_DEFN(PresentationDeviceProviderModule) = &kPresentationDeviceProviderModule;
diff --git a/dom/presentation/provider/ReceiverStateMachine.jsm b/dom/presentation/provider/ReceiverStateMachine.jsm
deleted file mode 100644
index 23ebb5a4e..000000000
--- a/dom/presentation/provider/ReceiverStateMachine.jsm
+++ /dev/null
@@ -1,238 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* jshint esnext:true, globalstrict:true, moz:true, undef:true, unused:true */
-/* globals Components, dump */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = ["ReceiverStateMachine"]; // jshint ignore:line
-
-const { utils: Cu } = Components;
-
-/* globals State, CommandType */
-Cu.import("resource://gre/modules/presentation/StateMachineHelper.jsm");
-
-const DEBUG = false;
-function debug(str) {
-  dump("-*- ReceiverStateMachine: " + str + "\n");
-}
-
-var handlers = [
-  function _initHandler(stateMachine, command) {
-    // shouldn't receive any command at init state
-    DEBUG && debug("unexpected command: " + JSON.stringify(command)); // jshint ignore:line
-  },
-  function _connectingHandler(stateMachine, command) {
-    switch (command.type) {
-      case CommandType.CONNECT:
-        stateMachine._sendCommand({
-          type: CommandType.CONNECT_ACK
-        });
-        stateMachine.state = State.CONNECTED;
-        stateMachine._notifyDeviceConnected(command.deviceId);
-        break;
-      case CommandType.DISCONNECT:
-        stateMachine.state = State.CLOSED;
-        stateMachine._notifyDisconnected(command.reason);
-        break;
-      default:
-        debug("unexpected command: " + JSON.stringify(command));
-        // ignore unexpected command
-        break;
-    }
-  },
-  function _connectedHandler(stateMachine, command) {
-    switch (command.type) {
-      case CommandType.DISCONNECT:
-        stateMachine.state = State.CLOSED;
-        stateMachine._notifyDisconnected(command.reason);
-        break;
-      case CommandType.LAUNCH:
-        stateMachine._notifyLaunch(command.presentationId,
-                                   command.url);
-        stateMachine._sendCommand({
-          type: CommandType.LAUNCH_ACK,
-          presentationId: command.presentationId
-        });
-        break;
-      case CommandType.TERMINATE:
-        stateMachine._notifyTerminate(command.presentationId);
-        break;
-      case CommandType.TERMINATE_ACK:
-        stateMachine._notifyTerminate(command.presentationId);
-        break;
-      case CommandType.OFFER:
-      case CommandType.ICE_CANDIDATE:
-        stateMachine._notifyChannelDescriptor(command);
-        break;
-      case CommandType.RECONNECT:
-        stateMachine._notifyReconnect(command.presentationId,
-                                      command.url);
-        stateMachine._sendCommand({
-          type: CommandType.RECONNECT_ACK,
-          presentationId: command.presentationId
-        });
-        break;
-      default:
-        debug("unexpected command: " + JSON.stringify(command));
-        // ignore unexpected command
-        break;
-    }
-  },
-  function _closingHandler(stateMachine, command) {
-    switch (command.type) {
-      case CommandType.DISCONNECT:
-        stateMachine.state = State.CLOSED;
-        stateMachine._notifyDisconnected(command.reason);
-        break;
-      default:
-        debug("unexpected command: " + JSON.stringify(command));
-        // ignore unexpected command
-        break;
-    }
-  },
-  function _closedHandler(stateMachine, command) {
-    // ignore every command in closed state.
-    DEBUG && debug("unexpected command: " + JSON.stringify(command)); // jshint ignore:line
-  },
-];
-
-function ReceiverStateMachine(channel) {
-  this.state = State.INIT;
-  this._channel = channel;
-}
-
-ReceiverStateMachine.prototype = {
-  launch: function _launch() {
-    // presentation session can only be launched by controlling UA.
-    debug("receiver shouldn't trigger launch");
-  },
-
-  terminate: function _terminate(presentationId) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.TERMINATE,
-        presentationId: presentationId,
-      });
-    }
-  },
-
-  terminateAck: function _terminateAck(presentationId) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.TERMINATE_ACK,
-        presentationId: presentationId,
-      });
-    }
-  },
-
-  reconnect: function _reconnect() {
-    debug("receiver shouldn't trigger reconnect");
-  },
-
-  sendOffer: function _sendOffer() {
-    // offer can only be sent by controlling UA.
-    debug("receiver shouldn't generate offer");
-  },
-
-  sendAnswer: function _sendAnswer(answer) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.ANSWER,
-        answer: answer,
-      });
-    }
-  },
-
-  updateIceCandidate: function _updateIceCandidate(candidate) {
-    if (this.state === State.CONNECTED) {
-      this._sendCommand({
-        type: CommandType.ICE_CANDIDATE,
-        candidate: candidate,
-      });
-    }
-  },
-
-  onCommand: function _onCommand(command) {
-    handlers[this.state](this, command);
-  },
-
-  onChannelReady: function _onChannelReady() {
-    if (this.state === State.INIT) {
-      this.state = State.CONNECTING;
-    }
-  },
-
-  onChannelClosed: function _onChannelClose(reason, isByRemote) {
-    switch (this.state) {
-      case State.CONNECTED:
-        if (isByRemote) {
-          this.state = State.CLOSED;
-          this._notifyDisconnected(reason);
-        } else {
-          this._sendCommand({
-            type: CommandType.DISCONNECT,
-            reason: reason
-          });
-          this.state = State.CLOSING;
-          this._closeReason = reason;
-        }
-        break;
-      case State.CLOSING:
-        if (isByRemote) {
-          this.state = State.CLOSED;
-          if (this._closeReason) {
-            reason = this._closeReason;
-            delete this._closeReason;
-          }
-          this._notifyDisconnected(reason);
-        } else {
-          // do nothing and wait for remote channel closed.
-        }
-        break;
-      default:
-        DEBUG && debug("unexpected channel close: " + reason + ", " + isByRemote); // jshint ignore:line
-        break;
-    }
-  },
-
-  _sendCommand: function _sendCommand(command) {
-    this._channel.sendCommand(command);
-  },
-
-  _notifyDeviceConnected: function _notifyDeviceConnected(deviceName) {
-    this._channel.notifyDeviceConnected(deviceName);
-  },
-
-  _notifyDisconnected: function _notifyDisconnected(reason) {
-    this._channel.notifyDisconnected(reason);
-  },
-
-  _notifyLaunch: function _notifyLaunch(presentationId, url) {
-    this._channel.notifyLaunch(presentationId, url);
-  },
-
-  _notifyTerminate: function _notifyTerminate(presentationId) {
-    this._channel.notifyTerminate(presentationId);
-  },
-
-  _notifyReconnect: function _notifyReconnect(presentationId, url) {
-    this._channel.notifyReconnect(presentationId, url);
-  },
-
-  _notifyChannelDescriptor: function _notifyChannelDescriptor(command) {
-    switch (command.type) {
-      case CommandType.OFFER:
-        this._channel.notifyOffer(command.offer);
-        break;
-      case CommandType.ICE_CANDIDATE:
-        this._channel.notifyIceCandidate(command.candidate);
-        break;
-    }
-  },
-};
-
-this.ReceiverStateMachine = ReceiverStateMachine; // jshint ignore:line
diff --git a/dom/presentation/provider/StateMachineHelper.jsm b/dom/presentation/provider/StateMachineHelper.jsm
deleted file mode 100644
index 6e07863d4..000000000
--- a/dom/presentation/provider/StateMachineHelper.jsm
+++ /dev/null
@@ -1,39 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* jshint esnext:true, globalstrict:true, moz:true, undef:true, unused:true */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = ["State", "CommandType"]; // jshint ignore:line
-
-const State = Object.freeze({
-  INIT: 0,
-  CONNECTING: 1,
-  CONNECTED: 2,
-  CLOSING: 3,
-  CLOSED: 4,
-});
-
-const CommandType = Object.freeze({
-  // control channel life cycle
-  CONNECT: "connect", // { deviceId: <string> }
-  CONNECT_ACK: "connect-ack", // { presentationId: <string> }
-  DISCONNECT: "disconnect", // { reason: <int> }
-  // presentation session life cycle
-  LAUNCH: "launch", // { presentationId: <string>, url: <string> }
-  LAUNCH_ACK: "launch-ack", // { presentationId: <string> }
-  TERMINATE: "terminate", // { presentationId: <string> }
-  TERMINATE_ACK: "terminate-ack", // { presentationId: <string> }
-  RECONNECT: "reconnect", // { presentationId: <string> }
-  RECONNECT_ACK: "reconnect-ack", // { presentationId: <string> }
-  // session transport establishment
-  OFFER: "offer", // { offer: <json> }
-  ANSWER: "answer", // { answer: <json> }
-  ICE_CANDIDATE: "ice-candidate", // { candidate: <string> }
-});
-
-this.State = State; // jshint ignore:line
-this.CommandType = CommandType; // jshint ignore:line
diff --git a/dom/presentation/provider/moz.build b/dom/presentation/provider/moz.build
deleted file mode 100644
index 18428b50e..000000000
--- a/dom/presentation/provider/moz.build
+++ /dev/null
@@ -1,40 +0,0 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-EXTRA_COMPONENTS += [
-    'BuiltinProviders.manifest',
-    'PresentationControlService.js'
-]
-
-UNIFIED_SOURCES += [
-    'DeviceProviderHelpers.cpp',
-    'DisplayDeviceProvider.cpp',
-    'MulticastDNSDeviceProvider.cpp',
-    'PresentationDeviceProviderModule.cpp',
-]
-
-EXTRA_JS_MODULES.presentation += [
-    'ControllerStateMachine.jsm',
-    'ReceiverStateMachine.jsm',
-    'StateMachineHelper.jsm',
-]
-
-if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'android':
-    EXTRA_COMPONENTS += [
-        # For android presentation device
-        'AndroidCastDeviceProvider.js',
-        'AndroidCastDeviceProvider.manifest',
-        # for TV 2.5 device backward capability
-        'LegacyPresentationControlService.js',
-        'LegacyProviders.manifest',
-    ]
-
-    UNIFIED_SOURCES += [
-        'LegacyMDNSDeviceProvider.cpp',
-    ]
-
-include('/ipc/chromium/chromium-config.mozbuild')
-FINAL_LIBRARY = 'xul'
diff --git a/dom/presentation/provider/nsTCPDeviceInfo.h b/dom/presentation/provider/nsTCPDeviceInfo.h
deleted file mode 100644
index 118f6c8ac..000000000
--- a/dom/presentation/provider/nsTCPDeviceInfo.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef __TCPDeviceInfo_h__
-#define __TCPDeviceInfo_h__
-
-namespace mozilla {
-namespace dom {
-namespace presentation {
-
-class TCPDeviceInfo final : public nsITCPDeviceInfo
-{
-public:
-  NS_DECL_ISUPPORTS
-  NS_DECL_NSITCPDEVICEINFO
-
-  explicit TCPDeviceInfo(const nsACString& aId,
-                         const nsACString& aAddress,
-                         const uint16_t aPort,
-                         const nsACString& aCertFingerprint)
-    : mId(aId)
-    , mAddress(aAddress)
-    , mPort(aPort)
-    , mCertFingerprint(aCertFingerprint)
-  {
-  }
-
-private:
-  virtual ~TCPDeviceInfo() {}
-
-  nsCString mId;
-  nsCString mAddress;
-  uint16_t mPort;
-  nsCString mCertFingerprint;
-};
-
-NS_IMPL_ISUPPORTS(TCPDeviceInfo,
-                  nsITCPDeviceInfo)
-
-// nsITCPDeviceInfo
-NS_IMETHODIMP
-TCPDeviceInfo::GetId(nsACString& aId)
-{
-  aId = mId;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-TCPDeviceInfo::GetAddress(nsACString& aAddress)
-{
-  aAddress = mAddress;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-TCPDeviceInfo::GetPort(uint16_t* aPort)
-{
-  *aPort = mPort;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-TCPDeviceInfo::GetCertFingerprint(nsACString& aCertFingerprint)
-{
-  aCertFingerprint = mCertFingerprint;
-  return NS_OK;
-}
-
-} // namespace presentation
-} // namespace dom
-} // namespace mozilla
-
-#endif /* !__TCPDeviceInfo_h__ */
-