Move SystemMonitor to src/chrome/common....

ui/base/system_monitor/system_monitor_win.cc

Index: ui/base/system_monitor/system_monitor_win.cc
===================================================================
--- ui/base/system_monitor/system_monitor_win.cc	(revision 0)
+++ ui/base/system_monitor/system_monitor_win.cc	(working copy)
@@ -1,9 +1,11 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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 "app/system_monitor.h"
+#include "ui/base/system_monitor/system_monitor.h"
 
+namespace ui {
+
 void SystemMonitor::ProcessWmPowerBroadcastMessage(int event_id) {
   PowerEvent power_event;
   switch (event_id) {
@@ -44,3 +46,5 @@
   }
   return (status.ACLineStatus == 0);
 }
+
+}  // namespace ui