Remove DeviceManager and DeviceInfo.

webrtc/media/devices/macdeviceinfo.cc

-/*
- *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "webrtc/media/devices/deviceinfo.h"
-
-namespace cricket {
-
-bool GetUsbId(const Device& device, std::string* usb_id) {
-  // Both PID and VID are 4 characters.
-  const int id_size = 4;
-  if (device.id.size() < 2 * id_size) {
-    return false;
-  }
-
-  // The last characters of device id is a concatenation of VID and then PID.
-  const size_t vid_location = device.id.size() - 2 * id_size;
-  std::string id_vendor = device.id.substr(vid_location, id_size);
-  const size_t pid_location = device.id.size() - id_size;
-  std::string id_product = device.id.substr(pid_location, id_size);
-
-  usb_id->clear();
-  usb_id->append(id_vendor);
-  usb_id->append(":");
-  usb_id->append(id_product);
-  return true;
-}
-
-bool GetUsbVersion(const Device& device, std::string* usb_version) {
-  return false;
-}
-
-}  // namespace cricket