Revert of Replace Chrome IPC with Mojo IPC for querying BatteryStatus service

device/battery/battery_status_manager_linux.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-#ifndef DEVICE_BATTERY_BATTERY_STATUS_MANAGER_LINUX_H_
-#define DEVICE_BATTERY_BATTERY_STATUS_MANAGER_LINUX_H_
-
-#include "device/battery/battery_export.h"
-#include "device/battery/battery_status.mojom.h"
-
-namespace base {
-class DictionaryValue;
-}
-
-namespace device {
-
-// UPowerDeviceState reflects the possible UPower.Device.State values,
-// see upower.freedesktop.org/docs/Device.html#Device:State.
-enum UPowerDeviceState {
-  UPOWER_DEVICE_STATE_UNKNOWN = 0,
-  UPOWER_DEVICE_STATE_CHARGING = 1,
-  UPOWER_DEVICE_STATE_DISCHARGING = 2,
-  UPOWER_DEVICE_STATE_EMPTY = 3,
-  UPOWER_DEVICE_STATE_FULL = 4,
-  UPOWER_DEVICE_STATE_PENDING_CHARGE = 5,
-  UPOWER_DEVICE_STATE_PENDING_DISCHARGE = 6,
-};
-
-// Returns the BatteryStatus computed using the provided dictionary.
-DEVICE_BATTERY_EXPORT BatteryStatus ComputeWebBatteryStatus(
-    const base::DictionaryValue& dictionary);
-
-}  // namespace device
-
-#endif  // DEVICE_BATTERY_BATTERY_STATUS_MANAGER_LINUX_H_