Implement powerMonitor "suspend"/"resume" events for Linux.

atom/browser/lib/power_observer.h

@@ -0,0 +1,26 @@
+// Copyright (c) 2017 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_LIB_POWER_OBSERVER_H_
+#define ATOM_BROWSER_LIB_POWER_OBSERVER_H_
+
+#include "base/macros.h"
+
+#if defined(OS_LINUX)
+#include "atom/browser/lib/power_observer_linux.h"
+#else
+#include "base/power_monitor/power_observer.h"
+#endif  // defined(OS_LINUX)
+
+namespace atom {
+
+#if defined(OS_LINUX)
+typedef PowerObserverLinux PowerObserver;
+#else
+typedef base::PowerObserver PowerObserver;
+#endif  // defined(OS_LINUX)
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_LIB_POWER_OBSERVER_H_