Reland "Replace Chrome IPC with Mojo IPC for querying BatteryStatus service"

device/battery/battery_monitor_impl.h

Index: device/battery/battery_monitor_impl.h
diff --git a/device/battery/battery_monitor_impl.h b/device/battery/battery_monitor_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..32986db8db57b434dbe65991e25ba549e9bfa35f
--- /dev/null
+++ b/device/battery/battery_monitor_impl.h
@@ -0,0 +1,34 @@
+// 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 "base/memory/scoped_ptr.h"
+#include "device/battery/battery_export.h"
+#include "device/battery/battery_monitor.mojom.h"
+#include "device/battery/battery_status_service.h"
+
+#ifndef DEVICE_BATTERY_BATTERY_MONITOR_IMPL_H_
+#define DEVICE_BATTERY_BATTERY_MONITOR_IMPL_H_
+
+namespace device {
+
+class BatteryMonitorImpl : public mojo::InterfaceImpl<BatteryMonitor> {
+ public:
+  DEVICE_BATTERY_EXPORT static void Create(
+      mojo::InterfaceRequest<BatteryMonitor> request);
+
+ private:
+  BatteryMonitorImpl();
+  virtual ~BatteryMonitorImpl();
+
+  // mojo::InterfaceImpl<..> methods:
+  virtual void OnConnectionEstablished() override;
+
+  void DidChange(const BatteryStatus& battery_status);
+
+  scoped_ptr<BatteryStatusService::BatteryUpdateSubscription> subscription_;
+};
+
+}  // namespace device
+
+#endif  // DEVICE_BATTERY_BATTERY_MONITOR_IMPL_H_