diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/base/system_monitor_win.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/base/system_monitor_win.cc	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,49 @@
+// Copyright (c) 2008 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/system_monitor.h"
+
+namespace base {
+
+void SystemMonitor::ProcessWmPowerBroadcastMessage(int event_id) {
+  PowerEvent power_event;
+  switch (event_id) {
+    case PBT_APMPOWERSTATUSCHANGE:  // The power status changed.
+      power_event = POWER_STATE_EVENT;
+      break;
+    case PBT_APMRESUMEAUTOMATIC:  // Non-user initiated resume from suspend.
+    case PBT_APMRESUMESUSPEND:    // User initiated resume from suspend.
+      power_event = RESUME_EVENT;
+      break;
+    case PBT_APMSUSPEND:  // System has been suspended.
+      power_event = SUSPEND_EVENT;
+      break;
+    default:
+      return;
+
+    // Other Power Events:
+    // PBT_APMBATTERYLOW - removed in Vista.
+    // PBT_APMOEMEVENT - removed in Vista.
+    // PBT_APMQUERYSUSPEND - removed in Vista.
+    // PBT_APMQUERYSUSPENDFAILED - removed in Vista.
+    // PBT_APMRESUMECRITICAL - removed in Vista.
+    // PBT_POWERSETTINGCHANGE - user changed the power settings.
+  }
+  ProcessPowerMessage(power_event);
+}
+
+// Function to query the system to see if it is currently running on
+// battery power.  Returns true if running on battery.
+bool SystemMonitor::IsBatteryPower() {
+  SYSTEM_POWER_STATUS status;
+  if (!GetSystemPowerStatus(&status)) {
+    CHROMIUM_LOG(ERROR) << "GetSystemPowerStatus failed: " << GetLastError();
+    return false;
+  }
+  return (status.ACLineStatus == 0);
+}
+
+
+
+} // namespace base