Battery Status API: browser-side implementation.

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 {
 
 BatteryStatusManager::BatteryStatusManager(
-    const BatteryStatusUpdateCallback& callback) : callback_(callback) {
+    const BatteryStatusService::BatteryUpdateCallback& callback)
+    : callback_(callback) {
+}
+
+BatteryStatusManager::BatteryStatusManager() {
 }
 
 BatteryStatusManager::~BatteryStatusManager() {
 }
 
 bool BatteryStatusManager::StartListeningBatteryChange() {
   NOTIMPLEMENTED();
   return false;
 }
 
 void BatteryStatusManager::StopListeningBatteryChange() {
   NOTIMPLEMENTED();
 }
 
 }  // namespace content