Add power-monitor module, fixes #45.

browser/api/atom_api_power_monitor.h

@@ -0,0 +1,41 @@
+// Copyright (c) 2013 GitHub, Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_API_ATOM_API_POWER_MONITOR_H_
+#define ATOM_BROWSER_API_ATOM_API_POWER_MONITOR_H_
+
+#include "browser/api/atom_api_event_emitter.h"
+
+#include "base/compiler_specific.h"
+#include "base/power_monitor/power_observer.h"
+
+namespace atom {
+
+namespace api {
+
+class PowerMonitor : public EventEmitter,
+                     public base::PowerObserver {
+ public:
+  virtual ~PowerMonitor();
+
+  static void Initialize(v8::Handle<v8::Object> target);
+
+ protected:
+  explicit PowerMonitor(v8::Handle<v8::Object> wrapper);
+
+  virtual void OnPowerStateChange(bool on_battery_power) OVERRIDE;
+  virtual void OnSuspend() OVERRIDE;
+  virtual void OnResume() OVERRIDE;
+
+ private:
+  static v8::Handle<v8::Value> New(const v8::Arguments &args);
+
+  DISALLOW_COPY_AND_ASSIGN(PowerMonitor);
+};
+
+}  // namespace api
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_API_ATOM_API_POWER_MONITOR_H_