Replace Chrome IPC with Mojo IPC for querying BatteryStatus service

content/browser/battery_status/battery_status_manager_default.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/browser/battery_status/battery_status_manager.h"
-
-#include "base/logging.h"
-
-namespace content {
-
-namespace {
-
-class BatteryStatusManagerDefault : public BatteryStatusManager {
- public:
-  explicit BatteryStatusManagerDefault(
-      const BatteryStatusService::BatteryUpdateCallback& callback) {}
-  virtual ~BatteryStatusManagerDefault() {}
-
- private:
-  // BatteryStatusManager:
-  virtual bool StartListeningBatteryChange() override {
-    NOTIMPLEMENTED();
-    return false;
-  }
-
-  virtual void StopListeningBatteryChange() override { NOTIMPLEMENTED(); }
-
-  DISALLOW_COPY_AND_ASSIGN(BatteryStatusManagerDefault);
-};
-
-}  // namespace
-
-// static
-scoped_ptr<BatteryStatusManager> BatteryStatusManager::Create(
-    const BatteryStatusService::BatteryUpdateCallback& callback) {
-  return scoped_ptr<BatteryStatusManager>(
-      new BatteryStatusManagerDefault(callback));
-}
-
-}  // namespace content