[DeviceService] Move PowerMonitor interfaces, client lib, impl to live in Device Service

device/power_monitor/public/cpp/power_monitor_broadcast_source.h

-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef DEVICE_POWER_MONITOR_POWER_MONITOR_BROADCAST_SOURCE_H_
-#define DEVICE_POWER_MONITOR_POWER_MONITOR_BROADCAST_SOURCE_H_
-
-#include "base/macros.h"
-#include "base/power_monitor/power_monitor_source.h"
-#include "device/power_monitor/public/interfaces/power_monitor.mojom.h"
-#include "mojo/public/cpp/bindings/binding.h"
-#include "services/service_manager/public/cpp/interface_provider.h"
-
-namespace device {
-
-// Receives state changes from Power Monitor through mojo, and relays them to
-// the PowerMonitor of the current process.
-class PowerMonitorBroadcastSource : public base::PowerMonitorSource,
-                                    public device::mojom::PowerMonitorClient {
- public:
-  explicit PowerMonitorBroadcastSource(
-      service_manager::InterfaceProvider* interface_provider);
-  ~PowerMonitorBroadcastSource() override;
-
-  void PowerStateChange(bool on_battery_power) override;
-  void Suspend() override;
-  void Resume() override;
-
- private:
-  bool IsOnBatteryPowerImpl() override;
-  bool last_reported_battery_power_state_;
-  mojo::Binding<device::mojom::PowerMonitorClient> binding_;
-
-  DISALLOW_COPY_AND_ASSIGN(PowerMonitorBroadcastSource);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_POWER_MONITOR_POWER_MONITOR_BROADCAST_SOURCE_H_