Revert 85732 (broke build) - Move SystemMonitor to base/.

ui/views/widget/native_widget_win.cc

 // 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 "ui/views/widget/native_widget_win.h"
 
 #include "base/memory/scoped_ptr.h"
-#include "base/system_monitor/system_monitor.h"
+#include "ui/base/system_monitor/system_monitor.h"
 #include "ui/base/view_prop.h"
 #include "ui/base/win/hwnd_util.h"
 #include "ui/gfx/canvas_skia.h"
 #include "ui/gfx/native_theme_win.h"
 #include "ui/gfx/path.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
 
 namespace ui {
 namespace internal {
@@ skipping 642 matching lines @@
     if (parent_widget) {
       widget = parent_widget;
       parent_hwnd = ::GetAncestor(parent_hwnd, GA_PARENT);
     }
   } while (parent_hwnd != NULL && parent_widget != NULL);
 
   return widget;
 }
 
 }  // namespace ui