Migrates battery_status from content/renderer/ to WebKit/platform/

content/renderer/battery_status/battery_status_dispatcher.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/renderer/battery_status/battery_status_dispatcher.h"
-
-#include "content/public/common/service_registry.h"
-#include "content/public/renderer/render_thread.h"
-#include "third_party/WebKit/public/platform/WebBatteryStatusListener.h"
-
-namespace content {
-
-BatteryStatusDispatcher::BatteryStatusDispatcher(
-    blink::WebBatteryStatusListener* listener)
-    : listener_(listener) {
-  DCHECK(listener_);
-
-  if (ServiceRegistry* registry = RenderThread::Get()->GetServiceRegistry()) {
-    // registry can be null during testing.
-    registry->ConnectToRemoteService(mojo::GetProxy(&monitor_));
-    QueryNextStatus();
-  }
-}
-
-BatteryStatusDispatcher::~BatteryStatusDispatcher() {
-}
-
-void BatteryStatusDispatcher::QueryNextStatus() {
-  monitor_->QueryNextStatus(
-      base::Bind(&BatteryStatusDispatcher::DidChange, base::Unretained(this)));
-}
-
-void BatteryStatusDispatcher::DidChange(
-    device::BatteryStatusPtr battery_status) {
-  // monitor_ can be null during testing.
-  if (monitor_)
-    QueryNextStatus();
-
-  DCHECK(battery_status);
-
-  blink::WebBatteryStatus web_battery_status;
-  web_battery_status.charging = battery_status->charging;
-  web_battery_status.chargingTime = battery_status->charging_time;
-  web_battery_status.dischargingTime = battery_status->discharging_time;
-  web_battery_status.level = battery_status->level;
-  listener_->updateBatteryStatus(web_battery_status);
-}
-
-}  // namespace content